1. a = imread(‘picture.jpg’); imshow(a);
Images
Loading an image:
a = imread(‘picture.jpg’);
imshow(a);

2. Images
Image (=matrix) size:
size(a):
R G B
384
512

3. Images
Color image:
3D Matrix of RGB planes

4. Images
Show RED plane:
a(:,:,2:3) = 0;
imshow(a);

5. Images
Show GREEN plane:
a(:,:,[1 3]) = 0;
imshow(a);

6. Images
Show BLUE plane:
a(:,:,1:2) = 0;
imshow(a);

7. Advanced: Shuffling columns
Images
Advanced: Shuffling columns
rn = rand(1,512);
[rn1,i] = sort(rn);
b = a(:,i,:);
imshow(b);

8. Images