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azjerei

How to scan through pixels in a bitmap?

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azjerei,

Open the file, and retrive the BITMAPFILEHEADER and the BITMAPINFOHEADER. THe *INFOHEADER will tell you the number of bits (ie the object called biBitCount), so use that to read the pixels.

-brad

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You could grab a library like the one for ImageMagick (http://www.imagemagick.com/www/Magick++/index.html) that will understand the header and get the pixels for you. The advantage to this approach is that you can quickly get access to a wide variety of file formats and functions related to what you want to do.

If you want to do it from scratch, then what the other two responders said would work just fine.

In the end, it's all just the numbers :)

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