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reverse transformation for scale up 2 times for rows and 1.6 times for columns(a image), don't use MATLAB or any other build-in functions imwarp

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Zhiyang Sun
Zhiyang Sun on 11 Sep 2021
Answered: Swetha Polemoni on 16 Sep 2021
first time use matlab to code, can anyone tell me how to use inv(T) to inverse image matrix without imwrap.
like:
inp=imread('cat,jpg');
figure, imshow(inp);axis on
[M,N]=size(inp);
T=[2,0,0;0,1.6,0;0,0,1];
Tinv=inv(T);
is this right? and I don't know how to continue, please help meQAQ.

Answers (1)

Swetha Polemoni
Swetha Polemoni on 16 Sep 2021
Hi
Inverse of matrix can be found by inv. It is my understanding that you want to find the inverse of your image 'inp'. The following code snippet might help you.
inp = imread('cat.jpg');
imageInverse = inv(inp);

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