using other image following error is coming.lena.jpg is not giving any error

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Komal Gaikwad
Komal Gaikwad 2018-4-1
评论： Walter Roberson 2018-5-7
Error using medfilt2 Expected input number 1, A, to be two-dimensional.
Error in medfilt2>parse_inputs (line 107) validateattributes(a, ...
Error in medfilt2 (line 48) [a, mn, padopt] = parse_inputs(varargin{:});
Error in maingui1>noisyimg_Callback (line 124) median_image=medfilt2(im_n)
Error in gui_mainfcn (line 95) feval(varargin{:});
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Walter Roberson
Walter Roberson 2018-5-7
You should be editing your code to have the above lines, and then either
if ndims(im) > 2; im = rgb2gray(im); end
or else
im = im2bw(im, graythresh(im));

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回答（1 个）

Image Analyst
Image Analyst 2018-4-1
You probably had your image as a color image. You need to call medfilt2 on each color channel one at a time, or else convert your image to grayscale with rgb2gray().
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