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matlab code

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noor
noor 2012-1-15
hiii i need a matlab code on how to view a matrix as an image ???? we have a matrix and i need to view it as image

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Chandra Kurniawan
Chandra Kurniawan 2012-1-15
Hi,
You can use imagesc command from Matlab
A = [ 0 1 1 1 0;
0 1 1 1 0;
0 0 1 0 0;
0 0 1 0 0;
1 1 1 1 1;
0 0 1 0 0;
0 0 1 0 0;
0 1 1 1 0;
1 0 0 0 1];
imagesc(A); colormap(gray);
axis square;
  2 个评论
noor
noor 2012-1-15
hi... thank u so much
i'm new in matlab so I will bother you a little bit
if i have an image form matlab how can i convert it to matrix and then use that matrix to view it back into image ???
Chandra Kurniawan
Chandra Kurniawan 2012-1-15
You can use command 'imread' to read image from disk.
Eq :
I = imread('C:\Document\nasa.jpg');
In the Matlab workspace, I will threaten as matrix.
Then If you want to convert it back to image, you can use 'imwrite' command from Matlab
Eq:
I = imread('C:\Document\nasa.jpg');
imwrite(I,'picture001.bmp','bmp');

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