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Get Area from an Image via Color

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@ndl wrote:

Hello,

i like to get the area from a surface. this surface is an image. only black or white. no grayscale. i need the area of just the black or just the white. since i have alot pictures i want to analyse, i like to use grasshopper.
i saw there are different options in rhino to analyse an area.
what do you think is the most promising approach?

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