problem with the use of medfilt2
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i want to reduce the noise of my image after i apply histogram equalization but i cannot seem to make it work.
I1 = rgb2gray(image1);
i1 = histeq(I1);
med1 = medfilt2(i1)
axes(handles.axes7);
imshow(med1);
3 Comments
Image Analyst
on 16 Nov 2012
Should not be necessary unless image1 was a floating point rgb image, which would be very rare/unusual. If image1 is uint8, then I1 and i1 and med1 will all be uint8 also, and so [] would just scale the image for display but it should have displayed even with out that.
Answers (2)
Image Analyst
on 16 Nov 2012
Try this code and see if it works.
image1 = imread('peppers.png');
I1 = rgb2gray(image1);
i1 = histeq(I1);
med1 = medfilt2(i1);
imshow(med1);
It's essentially your code and works fine for me.
0 Comments
Nidhi Adakoli
on 7 Dec 2017
clc;
close all;
clear all;
f=imread('nid1.jpg');
% fg=rgb2gray(f);
figure(1);imshow(f,[]);
fn=imnoise(f, 'salt & pepper', 0.1);%add 10% salt & pepper noise
figure(2)
subplot(2,2,1);
imshow(f);title('original image');
subplot(2,2,2);
imshow(fn);title('10% salt & pepper noise');
% noise removal by using average filter
w=[1 1 1; 1 1 1;1 1 1]*(1/9);
f_avg1=imfilter(fn,w,'conv');
subplot(2,2,3);
imshow(f_avg1);title('average filtered image');
%noise removal by using median filter
f_med1=medfilt2(fn);
subplot(2,2,4);
imshow(f_med1);title('median filtered image');
I am finding problem with line number 19 that is using median Average filter, it shoots up an error!
1 Comment
Image Analyst
on 7 Dec 2017
You forgot to attach nid1.jpg and the error message. You should probably start your own question for this rather than tack onto Joanna's discussion.
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