bitmap comparison

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  • Bharath A C
    New Member
    • Mar 2012
    • 1

    #1

    bitmap comparison

    I need to compare two bitmap images in vba and also obtain a third image which is a difference image formed by the difference of the RGB values of the pixels of first two images. Please let me know how this can be implemented in vba
  • Rabbit
    Recognized Expert MVP
    • Jan 2007
    • 12517

    #2
    If it's an uncompressed bitmap file, you can just do a byte by byte comparison. If it's compressed or uses any other specification, you will have to read the spec file for that format. Or find a library that contains image editing functionality.

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