I’m using a colour scale from blue to red, which is a PNG set at 100px wide. I would like to define a specific range i.e. pixels 10-14 and extract the colours from there.
Is this at all possible with PHP?
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I’m using a colour scale from blue to red, which is a PNG set at 100px wide. I would like to define a specific range i.e. pixels 10-14 and extract the colours from there.
Is this at all possible with PHP?
I think the imagecolorat() function is exactly what you want.