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Getting 24Bpp rather than 32Bpp bitmap
 
ciejka
Posted: 26 September 2010 05:23 AM   [ Ignore ]
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As in the topic - is it possible to obtain 24Bpp bitmap from CLEye SDK? Any suggestions how to convert it in efficient way? Now i’m converting it in this way:

Bitmap bitmap32 = new Bitmap(w, h, w * 4, PixelFormat.Format32bppRgb, _map);
Image<Bgr, byte> image24 = new Image<Bgr, byte>(bitmap32); 

but is is very slow method.

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AlexP
Posted: 29 September 2010 08:07 PM   [ Ignore ]   [ # 1 ]
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Converting from RGB32 to RGB24 is not that complex. You can use variety of methods including MMX/SSE optimized code or even run it on the GPU. Effectively you just need to copy source (RGB32) image data into another buffer (RGB24) and skip alpha component.
It is essentially like this:

for (int i=0; i<width*height; i++)
{
    *dest++ = *source++;
    *dest++ = *source++;
    *dest++ = *source++;
                      source++;
} 
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