From 956d02af88db8d76262a30274bb4fecf47645c5f Mon Sep 17 00:00:00 2001 From: scuri Date: Mon, 25 Oct 2010 19:57:24 +0000 Subject: *** empty log message *** --- html/en/guide.html | 20 +++++++++++++++----- html/en/representation.html | 4 ++-- html/en/samples.html | 2 +- 3 files changed, 18 insertions(+), 8 deletions(-) (limited to 'html/en') diff --git a/html/en/guide.html b/html/en/guide.html index f918cfa..6e8aba1 100644 --- a/html/en/guide.html +++ b/html/en/guide.html @@ -56,7 +56,7 @@ This library contains all the Image Representation functions and all the Image Storage functions (with the exception of the external formats: AVI, JP2 and WMV).

Each external format or processing usually needs a <im_xx.h> file and a "im_xx.lib/libim_xx.a/libim_xx.so" file.

-

Even if your applicattion is only in C, you must link with a C++ capable linker. Using Tecmake set "LINKER := g++" +

Even if your application is only in C, you must link with a C++ capable linker. Using Tecmake set "LINKER := g++" in your "config.mak" when compiling with gcc (UNIX and Windows).

The download files list includes the Tecgraf/PUC-Rio Library Download Tips document, with a description of all the available binaries.

@@ -203,7 +203,7 @@ IM_FLOAT = GL_FLOAT 
imConvertPacking(image->data[0], gl_data, image->width, image->height, image->depth, image->data_type, 0);
 glPixelStorei(GL_UNPACK_ALIGNMENT, 1); /* data alignment must be 1 */
 
-glDrawPixels(image->width, image->height, GL_RGB, GL_UNSIGNED_BYTE, (GLvoid*)gl_data);
+glDrawPixels(image->width, image->height, GL_RGB, GL_UNSIGNED_BYTE, gl_data);

When loading color image data you can use the function imConvertMapToRGB to convert in-place IM_MAP image data into IM_RGB after loading it from file. For example:

@@ -221,15 +221,25 @@ glDrawPixels(image->width, image->height, GL_RGB, GL_UNSIGNED_BYTE, (GLvoi

If you just want to save your OpenGL buffer then you can use:

glPixelStorei(GL_PACK_ALIGNMENT, 1); /* data alignment must be 1 */
-glReadPixels(x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, (GLvoid*)gl_data);
+glReadPixels(x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, gl_data);
 
 ifile = imFileNew(filename, format, &error);
 error = imFileWriteImageInfo(ifile, width, height, IM_RGB|IM_PACKED, IM_BYTE);
 error = imFileWriteImageData(ifile, gl_data);
 imFileClose(ifile);
-

You can also put glReadPixels and imFileWriteImageInfo/imFileWriteImageData - inside a loop to create an animation.

+

And when using the imImage structure then you can + instead use the function imImageCreateFromOpenGLData. For + instance:

+ + 
glPixelStorei(GL_PACK_ALIGNMENT, 1); /* data alignment must be 1 */
+glReadPixels(x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, gl_data);
+
+imImage* image = imImageCreateFromOpenGLData(width, height, GL_RGB, gl_data); 
+error = imFileImageSave(filename, format, image);
+ +

You can also do this + inside a loop to create an animation. 

IM 2.x Compatibility

diff --git a/html/en/representation.html b/html/en/representation.html index fbbf6a6..4c902cc 100644 --- a/html/en/representation.html +++ b/html/en/representation.html @@ -34,7 +34,7 @@

IM_GRAY usually means luma (nonlinear Luminance), but it can represent any other intensity value that is not necessarily related to color.

IM_BINARY is a subset of the IM_GRAY color space, and it has only 2 colors black and - white. Each value can be 0 or 1. But for pratical reasons we use one byte to store it.

+ white. Each value can be 0 or 1. But for practical reasons we use one byte to store it.

The other color spaces are standard CIE color spaces, except CMYK that does not have a clear definition without other parameters to complement it.

@@ -117,7 +117,7 @@ 
RGBRGBRGBRGBRGBRGBRGBRGBRGBRGBRGBRGBRGBRGBRGBRGB - for packed components
 0           1           2           3
-

In bold we visualy marked some lines of data.

+

In bold we visually marked some lines of data.

imImage

diff --git a/html/en/samples.html b/html/en/samples.html index a1473d6..ecdfd86 100644 --- a/html/en/samples.html +++ b/html/en/samples.html @@ -82,7 +82,7 @@

This application uses IUP and OpenGL to create a window with two canvases and draw a video capture image into one canvas. A processed image can be displayed in the second canvas. It can also process frames from a video file. It is - very usefull for Computer Vision courses..

+ very useful for Computer Vision courses..

You can download the source code and projects for Visual C++, Borland C++ Builder X and Dev-Cpp, here: iupglcap.zip  You will need to download IUP, CD and IM libraries for the compiler you use

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