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authorscuri <scuri>2010-10-25 19:57:24 +0000
committerscuri <scuri>2010-10-25 19:57:24 +0000
commit956d02af88db8d76262a30274bb4fecf47645c5f (patch)
treebe3b6a5ee07104449137cd86fbe95df5cd330321 /html
parentb007c2695ead1e484cf327765c47d8346f632447 (diff)
*** empty log message ***
Diffstat (limited to 'html')
-rw-r--r--html/en/guide.html20
-rw-r--r--html/en/representation.html4
-rw-r--r--html/en/samples.html2
3 files changed, 18 insertions, 8 deletions
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 <b>Image Representation</b> functions and all the <b>Image Storage</b> functions (with
the exception of the external formats: AVI, JP2 and WMV).</p>
<p>Each external format or processing usually needs a &lt;im_xx.h&gt; file and a &quot;im_xx.lib/libim_xx.a/libim_xx.so&quot; file.</p>
- <p>Even if your applicattion is only in C, you must link with a C++ capable linker. Using Tecmake set &quot;LINKER := g++&quot;
+ <p>Even if your application is only in C, you must link with a C++ capable linker. Using Tecmake set &quot;LINKER := g++&quot;
in your &quot;config.mak&quot; when compiling with gcc (UNIX and Windows).</p>
<p>The download files list includes the <a href="download_tips.html">Tecgraf/PUC-Rio Library Download Tips</a>
document, with a description of all the available binaries.</p>
@@ -203,7 +203,7 @@ IM_FLOAT = GL_FLOAT</pre>
<pre>imConvertPacking(image-&gt;data[0], gl_data, image-&gt;width, image-&gt;height, image-&gt;depth, image-&gt;data_type, 0);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1); /* data alignment must be 1 */
-glDrawPixels(image-&gt;width, image-&gt;height, GL_RGB, GL_UNSIGNED_BYTE, (GLvoid*)gl_data);</pre>
+glDrawPixels(image-&gt;width, image-&gt;height, GL_RGB, GL_UNSIGNED_BYTE, gl_data);</pre>
<p>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:</p>
@@ -221,15 +221,25 @@ glDrawPixels(image-&gt;width, image-&gt;height, GL_RGB, GL_UNSIGNED_BYTE, (GLvoi
<p>If you just want to save your OpenGL buffer then you can use:</p>
<pre>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, &amp;error);
error = imFileWriteImageInfo(ifile, width, height, IM_RGB|IM_PACKED, IM_BYTE);
error = imFileWriteImageData(ifile, gl_data);
imFileClose(ifile); </pre>
- <p>You can also put <b>glReadPixels</b> and <b>imFileWriteImageInfo</b>/<b>imFileWriteImageData</b>
- inside a loop to create an animation.</p>
+ <p>And when using the <strong>imImage</strong> structure then you can
+ instead use the function <strong>imImageCreateFromOpenGLData</strong>. For
+ instance:</p>
+
+ <pre>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);</pre>
+
+ <p>You can also do this
+ inside a loop to create an animation.&nbsp;</p>
<h3><a name="compat">IM 2.x Compatibility</a></h3>
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 @@
<p><b>IM_GRAY</b> usually means luma (nonlinear Luminance), but it can represent any other intensity value that
is not necessarily related to color.</p>
<p><b>IM_BINARY</b> is a subset of the <b>IM_GRAY</b> 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.</p>
+ white. Each value can be 0 or 1. But for practical reasons we use one byte to store it.</p>
<p>The other color spaces are standard CIE color spaces, except CMYK that does not have a clear definition without
other parameters to complement it.</p>
@@ -117,7 +117,7 @@
<pre><b>RGBRGBRGBRGB</b>RGBRGBRGBRGB<b>RGBRGBRGBRGB</b>RGBRGBRGBRGB - for packed components
0 1 2 3</pre>
- <p>In bold we visualy marked some lines of data.</p>
+ <p>In bold we visually marked some lines of data.</p>
<hr>
<h3>imImage</h3>
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 @@
<p>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..</p>
+ very useful for Computer Vision courses..</p>
<p>You can download the source code and projects for Visual C++, Borland C++ Builder X and Dev-Cpp, here:
<a href="../download/iupglcap.zip">iupglcap.zip</a>&nbsp; You will need to download IUP, CD and IM libraries for the
compiler you use</p>