COMP40 Assignment: Image-Compression Challenge
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COMP 40 Assignment: Image-Compression Challenge
Due Thursday, October 20 at 11:59 PM.
For the image-compression challenge, you are to meet two criteria:
- Edit your compile script to produce an executable binary
named 40image-6 instead of 40image.
- Edit your existing code to use the following codeword format for
coefficients a, b, c, d, P_B, and P_R:
| Value | Type | Width | LSB |
| a | Unsigned scaled integer | 6 bits | 26 |
| b | Signed scaled integer | 6 bits | 20 |
| c | Signed scaled integer | 6 bits | 14 |
| d | Signed scaled integer | 6 bits | 8 |
| index(P_B) | Unsigned index | 4 bits | 4 |
| index(P_R) | Unsigned index | 4 bits | 0 |
Surprisingly, this format produces slightly better images than the
9/5/5/5 format used in the original assignment.
Please
- Avoid changing interfaces unless necessary.
- Change as little code as possible.
- Do not rename any files.
- Do not create any new files.
If your compressor does not work correctly, that's OK: your job is
simply to get the behavior you already have (whatever it is) using the
new format.
Submit your work using submit40-arith-challenge.