how to extract number of colors from an image using matlab

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sathiya mala
sathiya mala 2015-4-16
编辑： Jan 2015-4-16
how to extract number of colors from an image using matlab

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Jan
Jan 2015-4-16
编辑：Jan 2015-4-16
Assuming that the "image" means a file, and not something on paper:
img = imread('YourImage.jpg');
uni = unique(reshape(img, [], 3), 'rows');
Unfortunately rgb2ind does not help here anymore.

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