How to segment an object from a RGB image using histogram thresholding?

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Malini 2013-7-23

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https://ww2.mathworks.cn/matlabcentral/answers/82848-how-to-segment-an-object-from-a-rgb-image-using-histogram-thresholding

评论： D.Jaisil Rose 2017-4-12

Dear Team,

I've got a RGB image with more than one objects in it. How do i automatically segment the objects from its background (each object in separate figure) using histogram thresholding (multimodal). I referred the demo by image analyst for grey scale in the link "http://www.mathworks.in/matlabcentral/answers/38235-histogram-of-image". The demo was very much helpful for greyscale. Could you guide me with the steps for proceeding with RGB image. Also request you to kindly suggest some reference papers if any.Thank you.

Cheers, Malini

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Narges M 2013-7-23

Can't you treat each channel (Red, Green and Blue) as a seperate image, compute the histogram and segment the image, and then combine your results?

D.Jaisil Rose 2017-4-12

Just masking

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Answer 1

Explorer 2013-12-31

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https://ww2.mathworks.cn/matlabcentral/answers/82848-how-to-segment-an-object-from-a-rgb-image-using-histogram-thresholding#answer_119772

http://www.mathworks.com/matlabcentral/fileexchange/25157-image-segmentation-tutorial-blobsdemo

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Answer 2

Image Analyst 2013-12-31

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https://ww2.mathworks.cn/matlabcentral/answers/82848-how-to-segment-an-object-from-a-rgb-image-using-histogram-thresholding#answer_119783

I have several color segmentation demos in my File Exchange. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 one of these should probably work. Post your image if you're still interested.