Thresholding in Color Image
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Dear All, I need to threshold for the range of colors belong to yellow in an color image.How can I do that.I tried with separating the RGB components.But it did not work for my purpose as it would give me unexpected results.
Your kind consideration given with this regard is highly appreciated.
Thanks in advance.
回答（3 个）
Image Analyst
2013-12-16
0 个投票
Try the Delta E method in my File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
Or try Brett's method in his File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/38484-segmenttool-an-interactive-gui-for-segmenting-images
tudor dima
2014-2-5
编辑：tudor dima
2014-2-5
0 个投票
If I correctly understood your problem -- you should convert your image to HSV and then obtain your selection by thresholding to the desired hue range ("yellow" in your case).
Also, intensity changes might also alter the perception of a colour as "yellow", so you might want your thresholding to run also on the "V" dimension of your hsv data.
1 个评论
Image Analyst
2014-2-5
I agree, and both of my links allow him to do exactly that, so I'm really puzzled as to why he said he can't figure it out.
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在 帮助中心 和 File Exchange 中查找有关 Lighting, Transparency, and Shading 的更多信息
2014-2-5
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