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Remove noise image?

asked 2016-06-30 22:08:55 -0500

Dinh Thap gravatar image

updated 2016-06-30 22:10:52 -0500

I have some image which contains some unwanted noise. The best way to remove it out of my image? Thanks. C:\fakepath\1467341227603.pngC:\fakepath\1467341227597.pngC:\fakepath\1467341227767.png C:\fakepath\1467341227767.png

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Where is noise in images?

LBerger gravatar imageLBerger ( 2016-07-01 07:12:35 -0500 )edit

noise line up, down, beside digit.

Dinh Thap gravatar imageDinh Thap ( 2016-07-01 07:19:15 -0500 )edit

IMHO that's not really noise (signal noise). Images given are very small. Is it always true? If yes use threshold and connected componnent. Keep only componnents with a surface greater than a fixed value

LBerger gravatar imageLBerger ( 2016-07-01 07:28:13 -0500 )edit

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answered 2016-07-01 06:16:49 -0500

Nitin Moradiya gravatar image

You can do with threshold functionality for image procession. here are the basic info regarding this http://docs.opencv.org/master/d7/d4d/... http://docs.opencv.org/2.4/doc/tutori...

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No. That doesn't resolve this problem

Dinh Thap gravatar imageDinh Thap ( 2016-07-01 07:21:15 -0500 )edit
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answered 2017-06-06 09:04:08 -0500

Remove noise in such a situation is not simple. I suggest you create a model from objects.You can use deep neural network for detection of objects regions.Then according to the output of dnn do probe segmentation by gallery pair sample.

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answered 2017-06-06 05:39:52 -0500

lohachan0108 gravatar image

You can use fastNlMeansDenoising or fastNlMeansDenoisingColored function in OpenCV to remove gaussian white noise or colored noise respectively. Hope it helps.

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Asked: 2016-06-30 22:08:55 -0500

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Last updated: Jun 06 '17