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Assignment -5
1. Color Image Processing (Pseudo-color image processing)
1. Intensity Slicing
2. Intensity to Color Transformation
Due Date: May 5th , 11:59 PM
1. Intensity Slicing
• Input: greyscale image, number of slices
Intensity Slicing
Greyscale image (h,w,1)
Output color image ((h,w,3)
Slices = 5
Intensity Slicing
Greyscale image (h,w,1)
Output color image ((h,w,3)
Slices = 5
0 255~42 ~85 ~127 ~170 ~212
Red
Green
Blue
Intensity Slicing
Greyscale image (h,w,1)
Output color image ((h,w,3)
Slices = 5
0 255~42 ~85 ~127 ~170 ~212
Color3 Color4 Color5 Color6
(120,32,92)Color1
(80,200,130)Color2
Red
Green
Blue
Intensity Slicing
Greyscale image (h,w,1)
Output color image ((h,w,3)
Slices = 5
0 255~42 ~85 ~127 ~170 ~212
(120,32,92)Color1
(80,200,130)Color2 Color3 Color4 Color5 Color6
30
Lies in interval 1
Red
Green
Blue
Example
10 Slices
8 Slices
2. Intensity to ColorTransformations
• Input: greyscale image, number of slices, (phase1, phase2, phase3)
Color Transformations
Greyscale image (h,w,1)
Output color image ((h,w,3)
Slices = 5
0 255~42 ~85 ~127 ~170 ~212
Red
Green
Blue
Color Transformations
Greyscale image (h,w,1)
Output color image ((h,w,3)
Slices = 5
0 255~42 ~85 ~127 ~170 ~212
Red
Green
Blue
255*Sin (k + phase1)
255*Sin (k + phase2)
255*Sin (k + phase3)
Color Transformations
Greyscale image (h,w,1)
Output color image ((h,w,3)
Slices = 5
0 255~42 ~85 ~127 ~170 ~212
Red
Green
Blue
255*Sin (k + phase1)
255*Sin (k + phase2)
255*Sin (k + phase3)
50Lies in interval 2
Center = 63.5Color = 255*Sin (63.5 + phase1)255*Sin (63.5 + phase2)255*Sin (63.5 + phase3)
Color Transformations
Greyscale image (h,w,1)
Output color image ((h,w,3)
Slices = 5
0 255~42 ~85 ~127 ~170 ~212
Red
Green
Blue
255*Sin (k + phase1)
255*Sin (k + phase2)
255*Sin (k + phase3)
50Lies in interval 2
Center = 63.5Color = 255*Sin (63.5 + phase1)255*Sin (63.5 + phase2)255*Sin (63.5 + phase3)
Examples
Slices = 20Phase1 = 20Phase2=70Phase3=270
Assignment -4
1. Intensity Slicing
2. Intensity to Color Transformation
Total: 15 Pts.
Submission Instructions
Must use the starter code available in Github
Submission allowed only through Github
You will receive an email with invitation to join
Github classroom
Start by reading the readme.md file.
Instructions are available here
Github will automatically save the last commit
as a submission before the deadline
