1. Review: color image in MATLAB
x=imread(‘lily.tif’);
x(:,:,1) is R component
x(:,:,2) is G component
x(:,:,3) is B component
Exercise#1:
Show the R, G, B component of x separately
Apply color transform, rgb2hsv, show the H, S, V component

2. Gray to color transformations
b=imread(‘blocks.tif’);
imshow(b, colormap( jet(256) ));
colorbar
Exercise#2: Try any other 2 colormaps
See help graph3d

3. Generate the RGB circles
Exercise#3: generate the following

4. Color smoothing Ex#4: smooth the RGB_iris image by
Smooth all R,G,B component
Convert to HSV space, and smooth the V component
Hint:
w=fspecial(‘average’, 25);
a=imfilter(I, w);

5. Color slicing
Exercise#5: Get strawberry image