Object extraction from background

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Lafi Raed 2017-1-31

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https://ww2.mathworks.cn/matlabcentral/answers/322775-object-extraction-from-background

评论： Image Analyst 2017-2-4

NotAllObjectExtracted.PNG

Hello, I have so many image that i need to extract object from them(remove the background) i have tested automatic thresholding to estimate the background gray level, also i hae tried Level set , but both method give good result for some images and poor result for other , i'm asking if there is a robust and good way to do this task. Please can anyone put me in the right direction.

here is an example that contain many object:

here is another one that contain one object:

Thank you

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回答（2 个）

Image Analyst 2017-1-31

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https://ww2.mathworks.cn/matlabcentral/answers/322775-object-extraction-from-background#answer_252822

编辑：Image Analyst 2017-1-31

I'd probably do a texture filter like stdfilt(), maybe ORed with an edge detector, and then threshold and fill the blobs with imfill. Let me know if you can't figure it out. Attach the images without the red graphical outlines on them.