How to shear an imagesc image
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi,
I have an image, created using imagesc function from a data matrix, like so:
imagesc (myarray, [-50 0]);
which I am then trying to shear by an angle a using the following code:
a = tand(10);
T = maketform('affine', [1 0 0; a 1 0; 0 0 1] );
B = imtransform(A,T,'cubic','FillValues',orange);
orange = [255 127 0]';
figure
imshow(B)
But I keep on failing, as I guess I'm not defining A (my original image created using imagesc) correctly.
Could anyone please explain how to define it correctly so it works as an input for the imtransform function?
Thank you.
2 commentaires
Réponses (1)
Pranjal Kaura
le 26 Oct 2021
Hey Linda,
Using functions 'imtransform' and 'maketform' is not recommended because of compatibilty considerations. You can use 'imwarp' and 'affine2d' instead. Here's a code snippet addressing the changes
a = tand(10);
T = affine2d( [1 0 0; a 1 0; 0 0 1] );
B = imwarp(img,T,'cubic','FillValues',0);
Could you share more information regarding your usecase and why you need 'imagesc' function? Also the complete code, wherein you're defining 'A'.
0 commentaires
Voir également
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!