Assignment -5 - qil.uh.eduqil.uh.edu/dip/media/cosc6380/Assignment-5.pdf · Assignment -5 1. Color...

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