OpenCV image processing- filter an image

Question

I would like to filter an image to make it more clear/sharper. What would be the best filter method for this in OpenCV?

First, ignore openCV. What do you mean by "clear"? Is the image: Blurry? Noisy? Too dark? Too light? (Sorry, I can't help you with openCV, but I can help you with your question clarity.) — JayC, Dec 21 '11 at 14:09
[This thread](http://stackoverflow.com/questions/8396140/sharpening-video-images-using-opencv) shares code that performs what you are looking for, and [this answer](http://stackoverflow.com/a/4993701/176769) as well. — karlphillip, Dec 22 '11 at 11:31

score 4 · Accepted Answer · edited May 23 '17 at 10:27

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If you want to sharpen the image this question might help you.

And for noise reduction here I have found an interesting article.

edited May 23 '17 at 10:27

Community

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answered Dec 21 '11 at 14:12

Diego Navarro

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score 1 · Answer 2 · answered Dec 21 '11 at 14:10

Filtering is a very broad topic and "make it more clear" is a rather vague objective. OpenCV has a number of filters implemented for you to try, and they are documented fairly extensively. If you are wanting more detailed advice, perhaps you should show some example images and explain what specifically you want to improve about them.

OpenCV image processing- filter an image

2 Answers2