image deblurring or noise removal

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huseyin kara 2012-6-26

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https://ww2.mathworks.cn/matlabcentral/answers/42070-image-deblurring-or-noise-removal

i have an image which created by camera. i almost correct this image color with the real image. for example; for a pixel's RGB values were changed [23 212 122] to [34 240 100]. but after this process (least square matrix method) my image has some noise around the edges of my image. how can i get rid of this noise?

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Image Analyst 2012-6-26

You'd have to show the image, because I don't know why the noise only shows up around the edge of the image. Is that a darker or brighter color than you used in your training set?

huseyin kara 2012-6-27

http://b1206.hizliresim.com/y/v/8tp0y.png

this image is after some color correction processes. after i applied to it a couple filters median,... , the image was not seen well i mean it is not clear as before the filters. i am beginner about the image processing and can it be normal to get this result?

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回答（1 个）

Stephen 2012-6-26

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https://ww2.mathworks.cn/matlabcentral/answers/42070-image-deblurring-or-noise-removal#answer_51838

try doing the same process to a matrix of ones and using ./ to get rid of the vignetting effect. Probably, whatever you're doing forces matlab to fill in with zeros at the edges.