Making image noise free

asked 2017-01-09 00:50:05 -0600

jeffy
1 ●1

After identifying the skin color and using the in range function to filter out the skin color i am left this image( noise image . Is there any way to remove those grains with in the hand image and few other noise in the back

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Can you show us range HSV or YCrCb that you used?

hoang anh tuan ( 2017-01-09 01:11:52 -0600 )edit

http://answers.opencv.org/question/12...

abhijith ( 2017-01-09 03:40:15 -0600 )edit

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answered 2017-01-09 01:30:32 -0600

LBerger
9317 ●2 ●20 ●88 http://www.traimaocv.fr

updated 2017-01-09 01:38:33 -0600

You can use dilate and closing operator with a rectangular structuring element but your image is really bad. You should use grabcut or calcbackproject instead of inrange After 5 closing iteration result is

image description

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Based on the result you show after closing, you could then select only components above a certain size (with connectedComponents) to keep only the hand