diff options
Diffstat (limited to 'html')
33 files changed, 1210 insertions, 45 deletions
diff --git a/html/download/im_view.zip b/html/download/im_view.zip Binary files differindex 5491add..e02233e 100644 --- a/html/download/im_view.zip +++ b/html/download/im_view.zip diff --git a/html/download/samples_imlua5.tar.gz b/html/download/samples_imlua5.tar.gz Binary files differindex 33a199b..849e964 100644 --- a/html/download/samples_imlua5.tar.gz +++ b/html/download/samples_imlua5.tar.gz diff --git a/html/download/samples_imlua5.zip b/html/download/samples_imlua5.zip Binary files differindex 5163b90..f47c067 100644 --- a/html/download/samples_imlua5.zip +++ b/html/download/samples_imlua5.zip diff --git a/html/en/capture_samples.html b/html/en/capture_samples.html index dcf795e..37bfaf2 100644 --- a/html/en/capture_samples.html +++ b/html/en/capture_samples.html @@ -17,8 +17,7 @@ draw the image into that canvas. But the image is obtained from a capture device. The image can be processed before display and a sequence of captured images can be saved in an AVI file during capture.</p> - <p>You can view the source code here: <a href="../download/glut_capture.c"> - glut_capture.c</a></p> + <p>You can view the source code here: <a href="../examples/glut_capture.c">glut_capture.c</a></p> <h3><a name="iupglcap">Capture and IUP</a></h3> diff --git a/html/en/history.html b/html/en/history.html index 8aac48f..7833a20 100644 --- a/html/en/history.html +++ b/html/en/history.html @@ -11,7 +11,7 @@ <body> <h1>History of Changes</h1> -<h3 dir="ltr">Version 3.4.2 (24/Jun/2009)</h3> +<h3 dir="ltr">Version 3.4.2 (26/Jun/2009)</h3> <ul> <li><span style="color: #FF0000">Fixed:</span> AVI format when reading 32 and 16 bpp frames.</li> diff --git a/html/en/proc_samples.html b/html/en/proc_samples.html index e51ff37..a15d39b 100644 --- a/html/en/proc_samples.html +++ b/html/en/proc_samples.html @@ -23,8 +23,7 @@ <p>Se also <a href="doxygen/group__transform.html"> Reference / Image Processing / Domain Transform Operations</a>.</p> - <p>You can view the source code here: <a href="../download/proc_fourier.cpp"> - proc_fourier.cpp</a></p> + <p>You can view the source code here: <a href="../examples/proc_fourier.cpp">proc_fourier.cpp</a></p> <h3><a name="houghlines">Hough Lines</a></h3> diff --git a/html/en/rep_samples.html b/html/en/rep_samples.html index 5c729a8..118f781 100644 --- a/html/en/rep_samples.html +++ b/html/en/rep_samples.html @@ -46,8 +46,7 @@ samples.</p> Model: CD MAVICA Photometric: 2</pre> - <p>You can view the source code here: <a href="../download/im_info.cpp"> - im_info.cpp</a></p> + <p>You can view the source code here: <a href="../examples/im_info.cpp">im_info.cpp</a></p> <h3><a name="im_view">View Using IUP and CD</a></h3> @@ -61,8 +60,7 @@ samples.</p> http://www.tecgraf.puc-rio.br/iup</a> and more about CD see <a target="_blank" href="http://www.tecgraf.puc-rio.br/cd"> http://www.tecgraf.puc-rio.br/cd</a>.</p> - <p>You can view the source code here: <a href="../download/im_view.c"> - im_view.c</a>, or download it with some makefiles + <p>You can view the source code here: <a href="../examples/im_view.c">im_view.c</a>, or download it with some makefiles <a href="../download/im_view.zip">im_view.zip</a>.</p> diff --git a/html/en/samples.html b/html/en/samples.html index e58835c..beba2cc 100644 --- a/html/en/samples.html +++ b/html/en/samples.html @@ -11,6 +11,7 @@ <body> <h1>Complete Samples</h1> +<p> You can also browse the <a href="../examples/">examples folder</a>. </p> <h3><code>im_info</code></h3> <p>This is a command line application that displays information obtained from a file using the IM I/O functions, @@ -42,13 +43,13 @@ Model: CD MAVICA Photometric: 2</pre> - <p>You can view the source code here: <a href="../download/im_info.cpp">im_info.cpp</a></p> + <p>You can view the source code here: <a href="../examples/im_info.cpp">im_info.cpp</a></p> <h3><code>im_copy</code></h3> <p>This is a command line application that copies all the information from one file to another using the IM I/O functions. It depends only on the IM main library. It is usefull for testing the drivers.</p> - <p>You can view the source code here: <a href="../download/im_copy.cpp">im_copy.cpp</a></p> + <p>You can view the source code here: <a href="../examples/im_copy.cpp">im_copy.cpp</a></p> <h3><code>proc_fourier</code></h3> @@ -58,7 +59,7 @@ GPL. To use it in a commercial application you must contact the MIT and pay for a commercial license.</p> <p>Se also <a href="doxygen/group__transform.html)">Reference / Image Processing / Domain Transform Operations</a>.</p> - <p>You can view the source code here: <a href="../download/proc_fourier.cpp">proc_fourier.cpp</a></p> + <p>You can view the source code here: <a href="../examples/proc_fourier.cpp">proc_fourier.cpp</a></p> <h3><code>im_view</code></h3> @@ -67,7 +68,7 @@ but using the <b>imImage</b> structure to make the implementation easier.</p> <p>For more IUP <a target="_blank" href="http://www.tecgraf.puc-rio.br/iup">http://www.tecgraf.puc-rio.br/iup</a> and more CD <a target="_blank" href="http://www.tecgraf.puc-rio.br/cd">http://www.tecgraf.puc-rio.br/cd</a></p> - <p>You can view the source code here <a href="../download/im_view.c">im_view.c</a>, or download it with some makefiles + <p>You can view the source code here <a href="../examples/im_view.c">im_view.c</a>, or download it with some makefiles <a href="../download/im_view.zip">im_view.zip</a>.</p> <h3><code>glut_capture</code></h3> @@ -75,7 +76,7 @@ <p>This application uses GLUT and OpenGL to create a window with a canvas and draw the image into that canvas. But the image is obtained from a capture device. The image can be processed before display and a sequence of captured images can be saved in an AVI file during capture.</p> - <p>You can view the source code here: <a href="../download/glut_capture.c">glut_capture.c</a></p> + <p>You can view the source code here: <a href="../examples/glut_capture.c">glut_capture.c</a></p> <h3><code>iupglcap</code></h3> @@ -157,9 +158,10 @@ canvas:Kill() image:Save("new.bmp", "BMP") </pre> - <p>Check the file <a href="../download/samples_imlua5.tar.gz">samples_imlua5.tar.gz</a> + <p>Check the files <a href="../download/samples_imlua5.tar.gz">samples_imlua5.tar.gz</a> or <a href="../download/samples_imlua5.zip">samples_imlua5.zip</a> for several samples in Lua. For - some of them you will need also the CD and the IUP libraries. </p> + some of them you will need also the CD and the IUP libraries. You can also + browse the <a href="../examples/">examples folder</a>. </p> </body> diff --git a/html/en/storage_samples.html b/html/en/storage_samples.html index d4f5c41..16e2a88 100644 --- a/html/en/storage_samples.html +++ b/html/en/storage_samples.html @@ -45,16 +45,14 @@ samples.</p> Model: CD MAVICA Photometric: 2</pre> - <p>You can view the source code here: <a href="../download/im_info.cpp"> - im_info.cpp</a></p> + <p>You can view the source code here: <a href="../examples/im_info.cpp">im_info.cpp</a></p> <h3><a name="im_copy">Copy</a></h3> <p>This is a command line application that copies all the information from one file to another using the IM I/O functions. It depends only on the IM main library. It is usefull for testing the drivers.</p> - <p>You can view the source code here: <a href="../download/im_copy.cpp"> - im_copy.cpp</a></p> + <p>You can view the source code here: <a href="../examples/im_copy.cpp">im_copy.cpp</a></p> <h3><a name="loadbmp">Load Bitmap from Resource File</a></h3> diff --git a/html/examples/analyze.lua b/html/examples/analyze.lua new file mode 100644 index 0000000..7f06496 --- /dev/null +++ b/html/examples/analyze.lua @@ -0,0 +1,28 @@ +require"imlua" +require"imlua_process" + +local filename = "lena.jpg" + +local image = im.FileImageLoad(filename) +local gray = im.ImageCreate(image:Width(), image:Height(), im.GRAY, image:DataType()) +local binary = im.ImageCreate(image:Width(), image:Height(), im.BINARY, image:DataType()) +local region = im.ImageCreate(image:Width(), image:Height(), im.GRAY, im.USHORT) + +-- make it grayscale +im.ConvertColorSpace(image, gray) +gray:Save("lena_gray.jpg", "JPEG") + +-- make it binary +im.ProcessSliceThreshold(gray, binary, 0, 128) +binary:Save("lena_binary.jpg", "JPEG") + +local count = im.AnalyzeFindRegions(binary, region, 4, 1) +print("regions: ", count) + +local region2 = im.ImageCreate(image:Width(), image:Height(), im.GRAY, im.BYTE) +im.ConvertDataType(region, region2, 0, 0, 0, 0) + +local region3 = im.ImageCreate(image:Width(), image:Height(), im.MAP, im.BYTE) +im.ConvertColorSpace(region2, region3) +region3:SetPalette(im.PaletteHighContrast(), 256) +region3:Save("lena_region.gif", "GIF") diff --git a/html/examples/capture.lua b/html/examples/capture.lua new file mode 100644 index 0000000..491518a --- /dev/null +++ b/html/examples/capture.lua @@ -0,0 +1,63 @@ +require"imlua" +require"imlua_capture" + +im.VideoCaptureReloadDevices() + +print("--- Devices ---") +local n = im.VideoCaptureDeviceCount() + +for i = 0, n - 1 do + desc = im.VideoCaptureDeviceDesc(i) + print(desc) +end + +local vc = im.VideoCaptureCreate() +print("connect: ", vc:Connect(0)) +print() + +print("--- Dialogs ---") + +local dc = vc:DialogCount() +for i = 0, dc - 1 do + desc = vc:DialogDesc(i) + print(i, desc) + vc:ShowDialog(i) +end +print() + + +print("--- Formats ---") + +local fc = vc:FormatCount() +for i = 0, fc - 1 do + local success, width, height, desc = vc:GetFormat(i) + print(i, string.format("%dx%d", width, height), desc) +end +print() + +print("--- Image Size ---") +local width, height = vc:GetImageSize() +print(width, height) +print() + +print("--- Attributes ---") +attribs = vc:GetAttributeList() +for i, name in ipairs(attribs) do + local error, percent = vc:GetAttribute(name) + if error == 0 then percent = "get error" end + print(i, name, percent) +end +--vc:SetAttribute("FlipVertical", 1) +--vc:SetAttribute("FlipHorizontal", 1) +print() + +print("--- Capture ---") +local image = im.ImageCreate(width, height, im.RGB, im.BYTE) +local res = vc:Live(1) +if (res > 0) then + print("grabbing frame") + print(vc:Frame(image, 3000)) +end +image:Save("capture.jpg", "JPEG") + +vc:Disconnect() diff --git a/html/examples/combine9.lua b/html/examples/combine9.lua new file mode 100644 index 0000000..0bc1b17 --- /dev/null +++ b/html/examples/combine9.lua @@ -0,0 +1,107 @@ +--A script to compose 9 photos, with 4/6 aspect ratio + +require"imlua" +require"imlua_process" +require"iuplua" + +function Confirm(title,msg) + if continue then + b=iup.Alarm(title, msg ,"Continue" ,"Exit") + if b==2 then continue=false print("Script Aborted!") end + end +end + +function Create_Host_Image() + if continue then + local screenx=1024*3 screeny=684*3 + dst_photo = im.ImageCreate(screenx, screeny, im.RGB, im.BYTE) + resize_photo = im.ImageCreate(1024, 684, im.RGB, im.BYTE) -- for resize + end +end + +function Create_Host_Name(name) + if continue then + i=0 + repeat + i=i+1 + num=1000+i + numstr=string.sub(tostring(num),-3) +-- path="D:/Composite/" + path="D:/Downloads/Test/" + ext=".jpg" + Result=path..name..numstr..ext + res,msg=io.open(Result) + io.close() + until not res + end +end + +function Get_Source_Photo() + if continue then +-- path="D:/MyPictures/" + path="D:/Downloads/Test/*.jpg" + Source, err = iup.GetFile(path) + print("Source: ", Source) + if err<0 then continue=false end + end +end + +function Insert_Photo(num) + if continue then + title="Photo "..num.." of 9" msg=Source Confirm(title,msg) + wd=dst_photo:Width() + hd=dst_photo:Height() + --print("Dst Size:",wd,hd) + src_photo=im.FileImageLoadBitmap(Source) + valuex=src_photo:Width() + valuey=src_photo:Height() + --print("Source Size:",valuex,valuey) + panex={0,1024,2048,0,1024,2048,0,1024,2048} + paney={0,0,0,684,684,684,1368,1368,1368} + Xd=panex[num] + Yd=paney[num] + Wd=1024 Hd=684 + -- extract a proportional rectangle from the source image + if 1.5*valuey>valuex then + Ws=valuex + Xs=0 + Hs=math.floor(valuex/1.5) + Ys=math.floor((valuey-Hs)/2) + else + Hs=valuey + Ys=0 + Ws=math.floor(1.5*Hs) + Xs=math.floor((valuex-Ws)/2) + end + + --print("Crop Size:",Ws, Hs) + --print("Crop Shift:",Xs,Ys) + crop_photo = im.ImageCreate(Ws, Hs, im.RGB, im.BYTE) + im.ProcessCrop(src_photo, crop_photo, Xs,Ys) + im.ProcessResize(crop_photo, resize_photo, 1) -- do bilinear interpolation + im.ProcessInsert(dst_photo, resize_photo, dst_photo, Xd, Yd) -- insert resize in dst and place the result in dst + crop_photo:Destroy() + + if num==9 then src_photo:CopyAttributes(dst_photo) end + end +end + +function Save_Composite_Photo() + if continue then + name="Composite" + Create_Host_Name(name) + dst_photo:Save(Result, "JPEG") + os.execute(Result) + end +end + +--Script Starts +continue=true +title="9 Panel Composite" msg="Photos can be anysize." Confirm(title,msg) +Create_Host_Image() +for i=1,9 do + num=i + Get_Source_Photo() + Insert_Photo(num) + end +Save_Composite_Photo() diff --git a/html/examples/error.lua b/html/examples/error.lua new file mode 100644 index 0000000..f8c71a8 --- /dev/null +++ b/html/examples/error.lua @@ -0,0 +1,10 @@ +require"imlua" + +local filename = "lena.jpg" +local image = im.FileImageLoad(filename) +local image2 = im.ImageCreate(image:Width(), image:Height(), im.GRAY, im.USHORT) + +-- Both calls will signal an error because of incompatible parameters + +--im.ConvertDataType(image, image2, im.CPX_REAL, im.GAMMA_LINEAR, 0, im.CAST_MINMAX) +im.ConvertColorSpace(image, image2, im.CPX_REAL, im.GAMMA_LINEAR, 0, im.CAST_MINMAX) diff --git a/html/examples/fft.lua b/html/examples/fft.lua new file mode 100644 index 0000000..3589635 --- /dev/null +++ b/html/examples/fft.lua @@ -0,0 +1,17 @@ +require"imlua" +require"imlua_process" +require"imlua_fftw" + +local filename = "lena.jpg" +local image = im.FileImageLoad(filename) + +local complex = im.ImageCreate(image:Width(), image:Height(), image:ColorSpace(), im.CFLOAT) +im.ProcessFFT(image, complex) + +local c = complex[0][5][10] -- component=0(Red), y = 5 x =10 +print(c[1], c[2]) + +complex[0][5][10] = { 2*c[1], c[2]/2 } + +local c = complex[0][5][10] +print(c[1], c[2]) diff --git a/html/examples/flower.jpg b/html/examples/flower.jpg Binary files differnew file mode 100644 index 0000000..2b9dbf1 --- /dev/null +++ b/html/examples/flower.jpg diff --git a/html/download/glut_capture.c b/html/examples/glut_capture.c index e8e2620..80aadd2 100644 --- a/html/download/glut_capture.c +++ b/html/examples/glut_capture.c @@ -4,7 +4,7 @@ OpenGL for drawing IM for image I/O and capture - Needs "glut32.lib", "vfw32.lib", "strmiids.lib", + Needs "opengl32.lib", "glu32.lib", "glut32.lib", "vfw32.lib", "strmiids.lib", "im.lib", "im_capture.lib", "im_avi.lib" and "im_process.lib". Control Keys: @@ -146,7 +146,10 @@ void idle(void) capture_process(user_key, image, back_image); if (video_file) + { + imFileWriteImageInfo(video_file, image->width, image->height, IM_RGB, IM_BYTE); imFileWriteImageData(video_file, image->data[0]); + } } imConvertPacking(image->data[0], gl_data, image->width, image->height, image->depth, image->data_type, 0); @@ -344,7 +347,7 @@ int initcapture(void) printf("No capture device found.\n"); return 0; } - /* conects the device */ + /* connects the device */ if (!imVideoCaptureConnect(myVideoCap, getcapture())) { imVideoCaptureDestroy(myVideoCap); printf("Can not connect to capture device.\n"); return 0; diff --git a/html/download/im_copy.cpp b/html/examples/im_copy.cpp index cf0e0d5..5b4c8cd 100644 --- a/html/download/im_copy.cpp +++ b/html/examples/im_copy.cpp @@ -4,13 +4,15 @@ Needs "im.lib". - Usage: im_copy <input_file_name> <output_file_name> [<output_format>] + Usage: im_copy <input_file_name> <output_file_name> [<output_format> [<output_compression]] Example: im_copy test.tif test_proc.tif */ #include <im.h> #include <im_util.h> +#include <im_format_avi.h> +#include <im_format_wmv.h> #include <stdio.h> #include <stdlib.h> @@ -51,6 +53,9 @@ int main(int argc, char* argv[]) return 0; } +// imFormatRegisterAVI(); +// imFormatRegisterWMV(); + void* data = NULL; imFile* ifile = NULL; imFile* ofile = NULL; @@ -65,21 +70,30 @@ int main(int argc, char* argv[]) int image_count; imFileGetInfo(ifile, format, compression, &image_count); - ofile = imFileNew(argv[2], argv[3]? argv[3]: format, &error); + ofile = imFileNew(argv[2], (argc < 3)? format: argv[3], &error); if (!ofile) goto man_error; - if (!argv[3]) + if (argc < 4) imFileSetInfo(ofile, compression); + else + imFileSetInfo(ofile, argv[4]); for (int i = 0; i < image_count; i++) { + int size, max_size = 0; int width, height, color_mode, data_type; error = imFileReadImageInfo(ifile, i, &width, &height, &color_mode, &data_type); if (error != IM_ERR_NONE) goto man_error; - data = malloc(imImageDataSize(width, height, color_mode, data_type)); + size = imImageDataSize(width, height, color_mode, data_type); + + if (size > max_size) + { + data = realloc(data, size); + max_size = size; + } error = imFileReadImageData(ifile, data, 0, -1); if (error != IM_ERR_NONE) @@ -96,6 +110,14 @@ int main(int argc, char* argv[]) imFileSetAttribute(ofile, attrib_list[a], attrib_data_type, attrib_count, attrib_data); } + if (imColorModeSpace(color_mode) == IM_MAP) + { + long palette[256]; + int palette_count; + imFileGetPalette(ifile, palette, &palette_count); + imFileSetPalette(ifile, palette, palette_count); + } + error = imFileWriteImageInfo(ofile, width, height, color_mode, data_type); if (error != IM_ERR_NONE) goto man_error; @@ -103,7 +125,10 @@ int main(int argc, char* argv[]) error = imFileWriteImageData(ofile, data); if (error != IM_ERR_NONE) goto man_error; + + printf("."); } + printf("done"); free(data); imFileClose(ifile); diff --git a/html/download/im_info.cpp b/html/examples/im_info.cpp index f9106fd..89ec8c4 100644 --- a/html/download/im_info.cpp +++ b/html/examples/im_info.cpp @@ -10,8 +10,13 @@ #include <im.h> #include <im_util.h> #include <im_binfile.h> +#include <im_format_jp2.h> +#include <im_format_avi.h> +#include <im_format_wmv.h> #include <stdio.h> +#include <stdlib.h> +#include <memory.h> void PrintError(int error) { @@ -187,10 +192,12 @@ void PrintImageInfo(const char* file_name) imFileClose(ifile); } -#include <windows.h> - int main(int argc, char* argv[]) { +// imFormatRegisterJP2(); +// imFormatRegisterAVI(); +// imFormatRegisterWMV(); + if (argc < 2) { printf("Invalid number of arguments.\n"); @@ -201,3 +208,4 @@ int main(int argc, char* argv[]) return 1; } + diff --git a/html/download/im_view.c b/html/examples/im_view.c index d9e2b72..e271394 100644 --- a/html/download/im_view.c +++ b/html/examples/im_view.c @@ -6,6 +6,7 @@ Example: im_view test.tif + Click on image to open another file. */ @@ -18,6 +19,7 @@ #include <stdio.h> #include <string.h> + static int disable_repaint = 0; /* used to optimize repaint, while opening a new file */ static void PrintError(int error) @@ -25,25 +27,25 @@ static void PrintError(int error) switch (error) { case IM_ERR_OPEN: - printf("Error Opening File.\n"); + IupMessage("IM", "Error Opening File."); break; case IM_ERR_MEM: - printf("Insuficient memory.\n"); + IupMessage("IM", "Insuficient memory."); break; case IM_ERR_ACCESS: - printf("Error Accessing File.\n"); + IupMessage("IM", "Error Accessing File."); break; case IM_ERR_DATA: - printf("Image type not Suported.\n"); + IupMessage("IM", "Image type not Suported."); break; case IM_ERR_FORMAT: - printf("Invalid Format.\n"); + IupMessage("IM", "Invalid Format."); break; case IM_ERR_COMPRESS: - printf("Invalid or unsupported compression.\n"); + IupMessage("IM", "Invalid or unsupported compression."); break; default: - printf("Unknown Error.\n"); + IupMessage("IM", "Unknown Error."); } } @@ -55,19 +57,19 @@ static int cbRepaint(Ihandle* iup_canvas) if (!cd_canvas || disable_repaint) return IUP_DEFAULT; - cdActivate(cd_canvas); - cdClear(); + cdCanvasActivate(cd_canvas); + cdCanvasClear(cd_canvas); if (!image) return IUP_DEFAULT; imcdCanvasPutImage(cd_canvas, image, 0, 0, image->width, image->height, 0, 0, 0, 0); - cdFlush(); + cdCanvasFlush(cd_canvas); return IUP_DEFAULT; } - + static void ShowImage(char* file_name, Ihandle* iup_dialog) { int error; @@ -76,11 +78,8 @@ static void ShowImage(char* file_name, Ihandle* iup_dialog) IupSetAttribute(iup_dialog, "imImage", NULL); image = imFileImageLoadBitmap(file_name, 0, &error); - if (!image) - { - PrintError(error); - return; - } + if (error) PrintError(error); + if (!image) return; IupSetAttribute(iup_dialog, "imImage", (char*)image); IupStoreAttribute(iup_dialog, "TITLE", file_name); @@ -116,6 +115,9 @@ static int cbClose(Ihandle* iup_dialog) if (cd_canvas) cdKillCanvas(cd_canvas); if (image) imImageDestroy(image); + IupSetAttribute(iup_dialog, "cdCanvas", NULL); + IupSetAttribute(iup_dialog, "imImage", NULL); + return IUP_CLOSE; } @@ -145,11 +147,14 @@ static Ihandle* CreateDialog(void) return iup_dialog; } +//#include "im_format_avi.h" + int main(int argc, char* argv[]) { Ihandle* dlg; - IupOpen(); + //imFormatRegisterAVI(); + IupOpen(&argc, &argv); dlg = CreateDialog(); diff --git a/html/examples/index.lua b/html/examples/index.lua new file mode 100644 index 0000000..1c4c1e4 --- /dev/null +++ b/html/examples/index.lua @@ -0,0 +1,18 @@ +require"imlua" + +local filename = "lena.jpg" +local image = im.FileImageLoad(filename) + +local r = image[0] +local g = image[1] +local b = image[2] + +for row = 0, image:Height() - 1, 10 do + for column = 0, image:Width() - 1, 10 do + r[row][column] = 0 + g[row][column] = 0 + b[row][column] = 0 + end +end + +image:Save("lena_indexing.bmp", "BMP") diff --git a/html/examples/info.lua b/html/examples/info.lua new file mode 100644 index 0000000..b1afb2a --- /dev/null +++ b/html/examples/info.lua @@ -0,0 +1,149 @@ +require"imlua" +require"lfs" + +function PrintError(error) + local msg = {} + msg[im.ERR_OPEN] = "Error Opening File." + msg[im.ERR_MEM] = "Insuficient memory." + msg[im.ERR_ACCESS] = "Error Accessing File." + msg[im.ERR_DATA] = "Image type not Suported." + msg[im.ERR_FORMAT] = "Invalid Format." + msg[im.ERR_COMPRESS] = "Invalid or unsupported compression." + + if msg[error] then + print(msg[error]) + else + print("Unknown Error.") + end +end + +function FindZero(data) + if (not data) then return false end + for i = 1, table.getn(data) do + if data[i] == 0 then + return true + end + end + return false +end + +function AttribData2Str(data, data_type) + local data_str + + if data_type == im.BYTE then + data_str = string.format("%3d", data[1]) + elseif data_type == im.USHORT then + data_str = string.format("%5d", data[1]) + elseif data_type == im.INT then + data_str = string.format("%5d", data[1]) + elseif data_type == im.FLOAT then + data_str = string.format("%5.2f", data[1]) + elseif data_type == im.CFLOAT then + data_str = string.format("%5.2f, %5.2f", data[1], data[2]) + end + + return data_str +end + +function GetSizeDesc(size) + local size_desc + + if size < 1024 then + size_desc = "b" + else + size = size / 1024 + + if size < 1024 then + size_desc = "Kb" + else + size = size / 1024 + size_desc = "Mb" + end + end + + return size, size_desc +end + +function FileSize(file_name) + if lfs then + local attr = lfs.attributes(file_name) + return attr.size + else + return 0 + end +end + +function PrintImageInfo(file_name) + print("IM Info") + print(string.format(" File Name:\n %s", file_name)) + + local ifile, error = im.FileOpen(file_name) + if not ifile then + PrintError(error) + return nil + end + + local file_size = FileSize(file_name) + + print(string.format(" File Size: %.2f %s", GetSizeDesc(file_size))) + + local format, compression, image_count = ifile:GetInfo() + + local error, format_desc = im.FormatInfo(format) + print(string.format(" Format: %s - %s", format, format_desc)) + print(string.format(" Compression: %s", compression)) + print(string.format(" Image Count: %d", image_count)) + for i = 1, image_count do + local error, width, height, color_mode, data_type = ifile:ReadImageInfo(i-1) + if width == nil then + PrintError(height) + ifile:Close() + return nil + end + + print(string.format(" Image #%d", i)) + print(string.format(" Width: %d", width)) + print(string.format(" Height: %d", height)) + print(string.format(" Color Space: %s", im.ColorModeSpaceName(color_mode))) + print(string.format(" Has Alpha: %s", im.ColorModeHasAlpha(color_mode) and "Yes" or "No")) + print(string.format(" Is Packed: %s", im.ColorModeIsPacked(color_mode) and "Yes" or "No")) + print(string.format(" Is Top Down: %s", im.ColorModeIsTopDown(color_mode) and "Yes" or "No")) + print(string.format(" Data Type: %s", im.DataTypeName(data_type))) + + local image_size = im.ImageDataSize(width, height, color_mode, data_type) + print(string.format(" Data Size: %.2f %s", GetSizeDesc(image_size))) + + local attrib_list = ifile:GetAttributeList() + for a = 1, table.getn(attrib_list) do + if a == 1 then + print(" Attributes:") + end + + local attrib_data, attrib_data_type = ifile:GetAttribute(attrib_list[a]) + + if table.getn(attrib_data) == 1 then + print(string.format(" %s: %s", attrib_list[a], AttribData2Str(attrib_data, attrib_data_type))) + elseif attrib_data_type == im.BYTE and FindZero(attrib_data) then + attrib_data = ifile:GetAttribute(attrib_list[a], true) + print(string.format(" %s: %s", attrib_list[a], attrib_data)) + else + print(string.format(" %s: %s ...", attrib_list[a], AttribData2Str(attrib_data, attrib_data_type))) + end + end + end + + ifile:Close() +end + +function main(arg) + if (not arg or table.getn(arg) < 1) then + print("Invalid number of arguments.") + return nil + end + + PrintImageInfo(arg[1]) + return 1 +end + +main(arg) +--PrintImageInfo("lena.jpg") diff --git a/html/examples/iupglview.c b/html/examples/iupglview.c new file mode 100644 index 0000000..93e0054 --- /dev/null +++ b/html/examples/iupglview.c @@ -0,0 +1,237 @@ + +#ifdef WIN32 +#include <windows.h> /* necessary because of the Microsoft OpenGL headers dependency */ +#endif + +#include <GL/gl.h> +#include <GL/glu.h> + +#include <stdlib.h> +#include <stdio.h> +#include <time.h> + +#include <iup.h> +#include <iupgl.h> + +#include <im.h> +#include <im_image.h> +#include <im_util.h> +#include <im_convert.h> + +int app_repaint_cb(Ihandle* self) +{ + unsigned char* gl_data = (unsigned char*)IupGetAttribute(self, "APP_GL_DATA"); + int width = IupGetInt(self, "APP_GL_WIDTH"); + int height = IupGetInt(self, "APP_GL_HEIGHT"); + IupGLMakeCurrent(self); /* activates this GL Canvas as the current drawing area. */ + glClear(GL_COLOR_BUFFER_BIT); /* clears the back buffer */ + + if (gl_data) + { + /* Draws the captured image at (0,0) */ + glRasterPos2f(0.f, 0.f); + glDrawPixels(width, height, GL_RGB, GL_UNSIGNED_BYTE, gl_data); + } + + IupGLSwapBuffers(self); /* swap data from back buffer to front buffer */ + return IUP_DEFAULT; +} + +void appGLInit(int width, int height) +{ + glClearColor(0., 0., 0., 1.0); /* window background */ + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); /* data alignment is 1 */ + + glViewport(0, 0, width, height); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + gluOrtho2D (0.0, (GLdouble)width, 0.0, (GLdouble)height); + + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); +} + +int app_resize_cb(Ihandle* self, int width, int height) +{ + IupGLMakeCurrent(self); + appGLInit(width, height); + return IUP_DEFAULT; +} + +/* OpenGL does not supports palette based images, so convert to RGB */ +/* this function can also be use for RGBA images */ +void ConvertMapToGLData(unsigned char* data, int count, int depth, long* palette, int palette_count) +{ + int c, i; + unsigned char r[256], g[256], b[256]; + + unsigned char* src_data = data + count-1; + unsigned char* dst_data = data + depth*(count-1); + + for (c = 0; c < palette_count; c++) + imColorDecode(&r[c], &g[c], &b[c], palette[c]); + + for (i = 0; i < count; i++) + { + int index = *src_data; + *dst_data = r[index]; + *(dst_data+1) = g[index]; + *(dst_data+2) = b[index]; + + dst_data -= depth; + src_data--; + } +} + +int app_open_cb(Ihandle* self) +{ + imFile* ifile; /* file input */ + int ret, error; + unsigned char* gl_data = (unsigned char*)IupGetAttribute(self, "APP_GL_DATA"); + char filename[1024] = ".\\*.*"; + + /* get a file name */ + ret = IupGetFile(filename); + if (ret == -1) + return IUP_DEFAULT; + + ifile = imFileOpen(filename, &error); + if (!ifile) + { + IupMessage("Error", "Error reading image file."); + return IUP_DEFAULT; + } + + { + int width = 0, height = 0, file_color_mode, color_space; + Ihandle* dialog = IupGetDialog(self); + imFileReadImageInfo(ifile, 0, &width, &height, &file_color_mode, NULL); + + /* alocates the buffers */ + if (gl_data) free(gl_data); + gl_data = malloc(width*height*3); + IupSetAttribute(dialog, "APP_GL_DATA", gl_data); + IupSetfAttribute(dialog, "APP_GL_WIDTH", "%d", width); + IupSetfAttribute(dialog, "APP_GL_HEIGHT", "%d", height); + + imFileReadImageData(ifile, gl_data, 1, IM_PACKED); + + color_space = imColorModeSpace(file_color_mode); + if (color_space == IM_MAP || color_space == IM_GRAY || color_space == IM_BINARY) + { + long palette[256]; + int palette_count; + imFileGetPalette(ifile, palette, &palette_count); + ConvertMapToGLData(gl_data, width*height, 3, palette, palette_count); + } + } + + imFileClose(ifile); + + return IUP_DEFAULT; +} + +int app_exit_cb(Ihandle *self) +{ + unsigned char* gl_data = (unsigned char*)IupGetAttribute(self, "APP_GL_DATA"); + + /* destroy buffers */ + if (gl_data) + free(gl_data); + + return IUP_CLOSE; +} + +int app_about_cb(Ihandle *self) +{ + IupMessagef("About", "IUPGLView 1.0\n" + "Tecgraf/PUC-Rio\n" + " ---------------- \n" + "IUP Version %s\n" + "IM Version %s\n" + " ---------------- \n" + "OpenGL:\n" + " Vendor: %s\n" + " Renderer: %s\n" + " Version: %s\n" + , IUP_RELEASE_VERSION, IM_VERSION, + glGetString(GL_VENDOR),glGetString(GL_RENDERER),glGetString(GL_VERSION)); + return IUP_DEFAULT; +} + +void mainMenuCreate(void) +{ + Ihandle* file_menu = IupMenu( + IupItem( "Open...", "app_open_cb"), + IupSeparator(), + IupItem( "Exit", "app_exit_cb"), + NULL + ); + + Ihandle* menu = IupMenu( + IupSubmenu("File", file_menu), + NULL + ); + + /* this will be used by the dialog */ + IupSetHandle("app_menu", menu); + + IupSetFunction("app_open_cb", (Icallback)app_open_cb); + IupSetFunction("app_exit_cb", (Icallback)app_exit_cb); +} + +void mainDialogCreate(void) +{ + Ihandle *dialog, *box, *canvas; + + /* initialize interface */ + + /* canvas for the image */ + + canvas = IupGLCanvas("app_repaint_cb"); + IupSetAttribute(canvas, "BORDER", "NO"); + IupSetAttribute(canvas, "BUFFER", "DOUBLE"); /* use double buffer */ + IupSetAttribute(canvas, "RESIZE_CB", "app_resize_cb"); /* configure the resize callback */ + + IupSetFunction("app_resize_cb", (Icallback)app_resize_cb); + IupSetFunction("app_repaint_cb", (Icallback)app_repaint_cb); + + /* this is the most external box that puts together + the toolbar, the two canvas and the status bar */ + box = IupSetAttributes(IupHbox( + canvas, + NULL), "MARGIN=10x10"); + + /* create the dialog and set its attributes */ + + mainMenuCreate(); + + dialog = IupDialog(box); + IupSetAttribute(dialog, "MENU", "app_menu"); /* configure the menu */ + IupSetAttribute(dialog, "CLOSE_CB", "app_exit_cb"); + IupSetAttribute(dialog, "TITLE", "IUPGLView"); + IupSetAttribute(dialog, "RASTERSIZE", "680x380"); /* initial size */ + IupSetAttribute(dialog, "SHRINK", "YES"); + IupSetHandle("app_dialog", dialog); + + IupShowXY(dialog, IUP_CENTER, IUP_CENTER); +} + +int main(int argc, char* argv[]) +{ + /* IUP initialization */ + IupOpen(); + IupGLCanvasOpen(); + + /* Create and show the main dialog */ + mainDialogCreate(); + + /* IUP event loop */ + IupMainLoop(); + + /* IUP closing */ + IupClose(); + + return 0; +} diff --git a/html/examples/lena.jpg b/html/examples/lena.jpg Binary files differnew file mode 100644 index 0000000..b6bad61 --- /dev/null +++ b/html/examples/lena.jpg diff --git a/html/examples/multimorpho.lua b/html/examples/multimorpho.lua new file mode 100644 index 0000000..be612c6 --- /dev/null +++ b/html/examples/multimorpho.lua @@ -0,0 +1,103 @@ +-- multi-step morphological opening on a binarized image, with increasing structuring element (Se) size: +-- step 1 - 3x3 Se +-- step 2 - 5x5 Se +-- step 3 - 7x7 Se +-- Step n - (2n+1)x (2n+1) Se +-- after each step, a count of the objects (white items) in the opened image has to be performed, +-- and the number of counted items to be saved in a .txt file for easy and fast exporting to excel + +require"imlua" +require"imlua_process" + +err_msg = { + "No error.", + "Error while opening the file.", + "Error while accessing the file.", + "Invalid or unrecognized file format.", + "Invalid or unsupported data.", + "Invalid or unsupported compression.", + "Insuficient memory", + "Interrupted by the counter", +} + +colorspace_str = { + "RGB", + "MAP", + "GRAY", + "BINARY", + "CMYK", + "YCBCR", + "LAB", + "LUV", + "XYZ" +} + +num_step = arg[1] +file_name1 = arg[2] +if (not num_step or not file_name1) then + print("Must have the number of steps and a file name as parameters.") + print(" Can have more than one file name as parameters and can use wildcards.") + print(" Usage:") + print(" lua multimorpho.lua num_step filename1 filename2 ...") + return +end + +print(">>> Multi-step Morphological Opening <<<") +print("Number of Steps: "..num_step) +print("") + +function ProcessImageFile(file_name, num_step) + print("Loading File: "..file_name) + image, err = im.FileImageLoad(file_name); + + if (err and err ~= im.ERR_NONE) then + error(err_msg[err+1]) + end + + if (image:ColorSpace() ~= im.BINARY) then + error("Invalid Image Color Space. Must be a Binary image [Color Space="..colorspace_str[image:ColorSpace()+1].."].") + end + + file_name = file_name..".csv" + print("Saving Log File: "..file_name) + log = io.open(file_name, "w") + + morph_image = image:Clone() + obj_image = im.ImageCreateBased(image, nil, nil, im.GRAY, im.USHORT) + + for step = 1, num_step do + kernel_size = 2*step+1 + print(" Binary Morphology Open [Kernel Size="..kernel_size.."x"..kernel_size.."].") + im.ProcessBinMorphOpen(image, morph_image, kernel_size, 1) -- 1 interaction + + num_obj = im.AnalyzeFindRegions(morph_image, obj_image, 4, false) -- 4 connected, ignore objects that touch the border + print(" Objects Found: "..num_obj) + log:write(kernel_size..";"..num_obj.."\n") + + if (num_obj == 0) then + step = num_step + end + + obj_image:Clear() + morph_image:Clear() + end + + log:close() + obj_image:Destroy() + morph_image:Destroy() + image:Destroy() + print("Done File.") + print("") +end + +file_count = 0 +for index,value in ipairs(arg) do + if (index > 1) then + ProcessImageFile(arg[index], num_step) + file_count = file_count + 1 + end +end + +if (file_count > 1) then + print("Processed "..file_count.." Files.") +end diff --git a/html/examples/palette.lua b/html/examples/palette.lua new file mode 100644 index 0000000..5ec7168 --- /dev/null +++ b/html/examples/palette.lua @@ -0,0 +1,6 @@ +require"imlua" + +local impal = im.PaletteHotIron() +print(impal) +print(im.ColorDecode(impal[1])) + diff --git a/html/download/proc_fourier.cpp b/html/examples/proc_fourier.cpp index 48baa60..48baa60 100644 --- a/html/download/proc_fourier.cpp +++ b/html/examples/proc_fourier.cpp diff --git a/html/examples/process.lua b/html/examples/process.lua new file mode 100644 index 0000000..5a32586 --- /dev/null +++ b/html/examples/process.lua @@ -0,0 +1,50 @@ +require"imlua" +require"imlua_process" + +function save_histogram (hist, filename, format) + local height = 200 -- altura da imagem + local max = math.max(unpack(hist)) -- pega o maior valor do histograma + local n = table.getn(hist) + 1 -- zero-based + local image = im.ImageCreate(n, height, im.GRAY, im.BYTE) -- cria a imagem + local white = 255 + local black = 0 + + local render = function (x, y, d, param) + local v = hist[x] / max + local h = v * height + if y <= h then return black end + return white + end + + im.ProcessRenderOp(image, render, "histogram", {}, 0) + image:Save(filename, format) +end + +local filename = "lena.jpg" + +local image = im.FileImageLoad(filename) + +save_histogram(im.CalcHistogram(image, 0, 0), "lena_histogram_R.gif", "GIF") +save_histogram(im.CalcHistogram(image, 1, 0), "lena_histogram_G.gif", "GIF") +save_histogram(im.CalcHistogram(image, 2, 0), "lena_histogram_B.gif", "GIF") +save_histogram(im.CalcGrayHistogram(image, 0), "lena_histogram_gray.gif", "GIF") + +local r = im.ImageCreate(image:Width(), image:Height(), im.GRAY, image:DataType()) +local g = im.ImageCreate(image:Width(), image:Height(), im.GRAY, image:DataType()) +local b = im.ImageCreate(image:Width(), image:Height(), im.GRAY, image:DataType()) +im.ProcessSplitComponents(image, { r, g, b}) +r:Save("lena_r.jpg", "JPEG") +g:Save("lena_g.jpg", "JPEG") +b:Save("lena_b.jpg", "JPEG") + +local rgb = image:Clone() +im.ProcessMergeComponents({r, g, b}, rgb) +rgb:Save("lena_rgb.jpg", "JPEG") + +local replace = image:Duplicate() +im.ProcessReplaceColor(image, replace, { 146, 93, 145 }, { 255, 0, 255 }) +replace:Save("lena_replace.jpg", "JPEG") + +local bitmask = image:Duplicate() +im.ProcessBitMask(image, bitmask, "01111010", im.BIT_XOR) +replace:Save("lena_bitmask.jpg", "JPEG") diff --git a/html/examples/process_new.lua b/html/examples/process_new.lua new file mode 100644 index 0000000..93ebcce --- /dev/null +++ b/html/examples/process_new.lua @@ -0,0 +1,44 @@ +require"imlua" +require"imlua_process" + +function save_histogram (hist, filename, format) + local height = 200 -- altura da imagem + local max = math.max(unpack(hist)) -- pega o maior valor do histograma + local n = table.getn(hist) + 1 -- zero-based + local image = im.ImageCreate(n, height, im.GRAY, im.BYTE) -- cria a imagem + local white = 255 + local black = 0 + + local render = function (x, y, d, param) + local v = hist[x] / max + local h = v * height + if y <= h then return black end + return white + end + + im.ProcessRenderOp(image, render, "histogram", {}, 0) + image:Save(filename, format) +end + +local filename = "lena.jpg" + +local image = im.FileImageLoad(filename) + +save_histogram(im.CalcHistogram(image, 0, 0), "lena_histogram_R.gif", "GIF") +save_histogram(im.CalcHistogram(image, 1, 0), "lena_histogram_G.gif", "GIF") +save_histogram(im.CalcHistogram(image, 2, 0), "lena_histogram_B.gif", "GIF") +save_histogram(im.CalcGrayHistogram(image, 0), "lena_histogram_gray.gif", "GIF") + +local r, g, b = im.ProcessSplitComponentsNew(image) +r:Save("lena_r.jpg", "JPEG") +g:Save("lena_g.jpg", "JPEG") +b:Save("lena_b.jpg", "JPEG") + +local rgb = im.ProcessMergeComponentsNew({r, g, b}) +rgb:Save("lena_rgb.jpg", "JPEG") + +local replace = im.ProcessReplaceColorNew(image, { 146, 93, 145 }, { 255, 0, 255 }) +replace:Save("lena_replace.jpg", "JPEG") + +local bitmask = im.ProcessBitMaskNew(image, "01111010", im.BIT_XOR) +replace:Save("lena_bitmask.jpg", "JPEG") diff --git a/html/examples/render.lua b/html/examples/render.lua new file mode 100644 index 0000000..b57f906 --- /dev/null +++ b/html/examples/render.lua @@ -0,0 +1,50 @@ +require"imlua" +require"imlua_process" + +local image = im.ImageCreate(500, 500, im.RGB, im.BYTE) + +im.ProcessRenderRandomNoise(image) +image:Save("render_noise.bmp", "BMP") + +im.ProcessRenderConstant(image, { 128.0, 0.0, 255.0 }) +image:Save("render_constant.bmp", "BMP") + +im.ProcessRenderWheel(image, 100, 200) +image:Save("render_wheel.bmp", "BMP") + +im.ProcessRenderTent(image, 300, 200) +image:Save("render_tent.bmp", "BMP") + +im.ProcessRenderRamp(image, 0, 500, 0) +image:Save("render_ramp.bmp", "BMP") + +im.ProcessRenderBox(image, 200, 200) +image:Save("render_box.bmp", "BMP") + +im.ProcessRenderSinc(image, 100.0, 100.0) +image:Save("render_sinc.bmp", "BMP") + +im.ProcessRenderGaussian(image, 100.0) +image:Save("render_gaussian.bmp", "BMP") + +im.ProcessRenderLapOfGaussian(image, 100.0) +image:Save("render_lapofgaussian.bmp", "BMP") + +im.ProcessRenderCosine(image, 100.0, 100.0) +image:Save("render_cosine.bmp", "BMP") + +im.ProcessRenderGrid(image, 100.0, 100.0) +image:Save("render_grid.bmp", "BMP") + +im.ProcessRenderChessboard(image, 100.0, 100.0) +image:Save("render_chess.bmp", "BMP") + +im.ProcessRenderCone(image, 200) +image:Save("render_cone.bmp", "BMP") + +local render_func = function (x, y, d, param) + return math.mod(x + y, 256) +end + +im.ProcessRenderOp(image, render_func, "test", {}, 0) +image:Save("render_func.bmp", "BMP") diff --git a/html/examples/render_cd.lua b/html/examples/render_cd.lua new file mode 100644 index 0000000..4af8a16 --- /dev/null +++ b/html/examples/render_cd.lua @@ -0,0 +1,19 @@ +require"imlua" +require"cdlua" +require"cdluaim" + +local image = im.ImageCreate(500, 500, im.RGB, im.BYTE) +local canvas = image:cdCreateCanvas() -- Creates a CD_IMAGERGB canvas + +canvas:Activate() +canvas:Background(cd.EncodeColor(255, 255, 255)) +canvas:Clear() +fgcolor = cd.EncodeColor(255, 0, 0) -- red +fgcolor = cd.EncodeAlpha(fgcolor, 50) -- semi transparent +canvas:Foreground(fgcolor) +canvas:Font("Times", cd.BOLD, 24) +canvas:Text(100, 100, "Test") +canvas:Line(0,0,100,100) +canvas:Kill() + +image:Save("new.bmp", "BMP") diff --git a/html/examples/screencapture.lua b/html/examples/screencapture.lua new file mode 100644 index 0000000..16eb94e --- /dev/null +++ b/html/examples/screencapture.lua @@ -0,0 +1,13 @@ +require"imlua" +require"cdlua" +require"cdluaim" + +local canvas = cd.CreateCanvas(cd.NATIVEWINDOW, nil) +canvas:Activate() +local w, h = canvas:GetSize() +local image = im.ImageCreate(w, h, im.RGB, im.BYTE) +image:cdCanvasGetImage(canvas, 0, 0) +error = image:Save("screencapture.jpg", "JPEG") +image:Destroy() +if (error) then print("error = "..error) end + diff --git a/html/examples/show_flower.wlua b/html/examples/show_flower.wlua new file mode 100644 index 0000000..ec97a88 --- /dev/null +++ b/html/examples/show_flower.wlua @@ -0,0 +1,31 @@ +require"imlua" +require"cdlua" +require"cdluaim" +require"iuplua" +require"iupluacd" + +image = im.FileImageLoad("flower.jpg") -- directly load the image at index 0. it will open and close the file +cnv = iup.canvas{rastersize = image:Width().."x"..image:Height(), border = "NO"} +cnv.image = image -- store the new image in the IUP canvas as an attribute + +function cnv:map_cb() -- the CD canvas can only be created when the IUP canvas is mapped + self.canvas = cd.CreateCanvas(cd.IUP, self) +end + +function cnv:action() -- called everytime the IUP canvas needs to be repainted + self.canvas:Activate() + self.canvas:Clear() + self.image:cdCanvasPutImageRect(self.canvas, 0, 0, 0, 0, 0, 0, 0, 0) -- use default values +end + +dlg = iup.dialog{cnv} + +function dlg:close_cb() + cnv.image:Destroy() + cnv.canvas:Kill() + self:destroy() + return iup.IGNORE -- because we destroy the dialog +end + +dlg:show() +iup.MainLoop() diff --git a/html/examples/view.wlua b/html/examples/view.wlua new file mode 100644 index 0000000..60be33e --- /dev/null +++ b/html/examples/view.wlua @@ -0,0 +1,183 @@ +require"imlua" +require"cdlua" +require"cdluaim" +require"iuplua" +require"iupluacd" + +function PrintError(func, error) + local msg = {} + msg[im.ERR_OPEN] = "Error Opening File." + msg[im.ERR_MEM] = "Insuficient memory." + msg[im.ERR_ACCESS] = "Error Accessing File." + msg[im.ERR_DATA] = "Image type not Suported." + msg[im.ERR_FORMAT] = "Invalid Format." + msg[im.ERR_COMPRESS] = "Invalid or unsupported compression." + + if msg[error] then + print(func..": "..msg[error]) + else + print("Unknown Error.") + end +end + +function LoadImage(file_name) + local image + local ifile, error = im.FileOpen(file_name) + if not ifile then + PrintError("open", error) + return + end + + -- load the first image in the file. + -- force the image to be converted to a bitmap + image, error = ifile:LoadBitmap() + if not image then + PrintError("load", error) + return + end + + ifile:Close() + return image +end + + +dlg = nil -- only one dlg + +function ShowImage(file_name) + + local image = LoadImage(file_name) + if not image then + return false + end + + if dlg then + local old_canvas = dlg.canvas + local old_image = dlg.image + + if old_canvas ~= nil then old_canvas:Kill() end + if old_image ~= nil then old_image:Destroy() end + + iup.Destroy(dlg) + end + + cnv = iup.canvas{} + + function cnv:action() + local canvas = dlg.canvas + local image = dlg.image + + if (not canvas) then return end + + -- posy is top-down, CD is bottom-top. + -- invert scroll reference (YMAX-DY - POSY). + y = self.ymax-self.dy - self.posy + if (y < 0) then y = 0 end + + + canvas:Activate() + canvas:Clear() + x = -self.posx + y = -y + image:cdCanvasPutImageRect(canvas, x, y, image:Width(), image:Height(), 0, 0, 0, 0) + canvas:Flush() + + return iup.DEFAULT + end + + function cnv:button_cb() + local file_name = "*.*" + local error + + file_name, error = iup.GetFile(file_name) + if error ~= 0 then + return iup.DEFAULT + end + + ShowImage(file_name) + return iup.DEFAULT + end + + + -- Set the Canvas inicial size (IUP will retain this value). + w = image:Width() + h = image:Height() + if (w > 800) then w = 800 end + if (h > 600) then h = 600 end + cnv.rastersize = string.format("%dx%d", w, h) + cnv.border = "no" + cnv.scrollbar = "yes" + cnv.xmax = image:Width()-1 + cnv.ymax = image:Height()-1 + + function cnv:resize_cb(w, h) + self.dx = w + self.dy = h + self.posx = self.posx -- needed only in IUP 2.x + self.posy = self.posy + end + + dlg = iup.dialog{cnv} + dlg.title = file_name + dlg.cnv = cnv + dlg.image = image + + function dlg:close_cb() + local canvas = self.canvas + local image = self.image + + if canvas then canvas:Kill() end + if image then image:Destroy() end + + return iup.CLOSE + end + + function dlg:map_cb() + canvas = cd.CreateCanvas(cd.IUP, self.cnv) + self.canvas = canvas + self.posx = 0 -- needed only in IUP 2.x + self.posy = 0 + end + + dlg:show() + cnv.rastersize = nil -- to remove the minimum limit + + return true +end + +function main(arg) + local file_name = "*.*" + local error + + -- Try to get a file name from the command line. + if (arg == nil or table.getn(arg) < 2) then + file_name, error = iup.GetFile(file_name) + if error ~= 0 then + return true + end + else + file_name = arg[1] + end + + if not ShowImage(file_name) then + local Try = true + -- If ShowImage returns an error I will try to read another image. + -- I can give up on File Open dlg choosing "Cancel". + while Try do + file_name = "*.*" + + file_name, error = iup.GetFile(file_name) + if error ~= 0 then + return true + end + + if ShowImage(file_name) then + Try = false + end + end + end + + iup.MainLoop() + return true +end + +main(arg) |
