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How can i remove the horizontal lines in this image?

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Rick
Rick 2012-10-4
Hi all,
I am trying to enhance degrade image such that it looks similar to the original.
I have used:
img = histeq(img,imhist(img1));
to transfer the original histogram to the degraded image. How can I remove all those "blocks"?
I have tried using a LPF, but in vain.

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Walter Roberson
Walter Roberson 2012-10-4
编辑：Walter Roberson 2012-10-4
median filter might possibly remove the horizontal lines.
  1 个评论
Rick
Rick 2012-10-4
编辑：Rick 2012-10-4
I have tried this:
img2 = imread('Image2.bmp');
en_img2 = medfilt2(img2);
imshow(en_img2);
The degraded image still have the horizontal lines. Isn't median filter use for "salt and pepper" noise?
EDIT:
I have used this answer found in this link:
http://www.mathworks.com/matlabcentral/newsreader/view_thread/290978
Although the enhanced image is not as good as the original. But it is very close to it.

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