Matlab Programming. Please help. Thanks http://carmaux.cs.gsu.edu/~mweeks/csc463
ID: 3925429 • Letter: M
Question
Matlab Programming. Please help. Thanks
http://carmaux.cs.gsu.edu/~mweeks/csc4630/PICT0009.JPG
Use MATLAB to read the image, show it as a figure, then have the user select 2 points, crop the image, and show it as another figure.
First, read the image and display it. You will need to define "filename" as a string of the filename.
x = imread(filename);
imshow(x);
Now have the user (you) select 2 points.
title('Select 2 points');
[a, b] = ginput(2);
Now, you will need to "clean up" variables "a" and "b". Inspect the values, and make sure they are integers within the boundaries of "x", changing them as needed. Then make a cropped image:
y = x(r1:r2, c1:c2);
figure();
imshow(y);
title('cropped version');
Once you have this working, crop it so that the lower-right corner is showing, about 1/4 of the original size.
Explanation / Answer
A = imread('http://carmaux.cs.gsu.edu/~mweeks/csc4630/PICT0009.JPG');
imshow(A);
title('Select 2 points');
[a, b] = ginput(2);
clearvars a b
s=whos('myvar');
[s.bytes]
D = imcrop(A,[0,0 ,a/4,b/4]);
figure()
title("cropped version");
imshow(D);