crop image with fixed x/y ratio
1 view (last 30 days)
Show older comments
I want to crop image using following code. but i want to user only can select the crop area with a predefined x/y ratio.for example if x=2,y=2 ,then user can only use mouse to select an area with (x/y)=1 ratio.
I = imread('image.jpg');
[rows columns numberOfColorBands] = size(I);
I2 = imcrop(I);
imshow(I), figure, imshow(I2)
0 Comments
Answers (1)
Image Analyst
on 19 May 2013
You'd have to tie into the mouse move event and draw a box based on the starting point, and some other corner, based on the current mouse location but with the aspect ratio forced to be what you want. Or else just call rbbox() or imrect() and let them draw whatever and fix it up after they finish the box.
0 Comments
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!