How can I find saturated pixels in an image?
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How can I find saturated pixels in an image?
回答（2 个）
Matt Tearle
2011-3-3
2 个投票
idx = all(A==255,3); would give you a logical array that is true at all white pixels (in a uint8 representation).
Otherwise, as Sean asks, what do you mean by "saturated"?
1 个评论
Jan
2011-3-3
Or for a [W x H x 3] DOUBLE array as RBG image: idx = all(A == 1, 3);
Tim Zaman
2011-4-6
0 个投票
convert to LAB with the RGB2LAB function.. that splits into three components; the dimensions will be [L;A;B]instaed of [R;G;B]... then you could state something like saturation=sqrt(A_component^+B_component^); which will be your level of saturation, then you just set a threshold. more matlab code on that is on http://www.timzaman.nl/?category_name=gen_matlab&lang=en
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2011-3-3
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