I have a CGI script that changes GIF images. It replaces each colour throughout the image with a different one. I have been using the Image::Magick Opaque function to do this. However, it is to slow and I would like to speed it up. What is the best way of changeing all instances of a colour throughout an image? Can I alter GIF palettes in perl (without GD) without touching the individual pixels?

In reply to gif colour changes by matthewsnape

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