JPEG2000 Encoding
System
Introduction
• JPEG2000 has better compression performance than the existing JPEG.
• JPEG2000 has many applications:
– DSC.
– Internet.
– Medical image.
Feature
• Quality scalability.
• Resolution scalability.
• Lossy and lossless compression.
• Region-of-Internet (ROI).
Experiment Result
Total checking cycles required for EBCOT context model adopt the fast algorithm. (PC platform:P-Ⅲ850 CPU)
|
Image |
Original Method |
CUPS + PP |
Proposed |
|
Baboon256 |
20,641,562 |
4,543,513 |
22.01% |
|
Lena256 |
21,043,421 |
4,501,460 |
21.39% |
|
Toys256 |
20,954,533 |
4,495,148 |
21.45% |
|
Airplane512 |
81,394,236 |
18,931,741 |
23.25% |
|
Gold512 |
81,033,418 |
19,412,313 |
23.95% |
|
Zelda512 |
81,943,356 |
19,559,235 |
23.86% |
Total checking cycles required for EBCOT context model adopt the fast algorithm. (DSP platform: TriMedia TM-1300)
|
Image |
Original Method |
CUPS + PP |
Proposed |
|
Baboon256 |
20,641,562 |
4,543,513 |
22.01% |
|
Lena256 |
21,043,421 |
4,501,460 |
21.39% |
|
Toys256 |
20,954,533 |
4,495,148 |
21.45% |
|
Airplane512 |
81,394,236 |
18,931,741 |
23.25% |
|
Gold512 |
81,033,418 |
19,412,313 |
23.95% |
|
Zelda512 |
81,943,356 |
19,559,235 |
23.86% |
The experimental coding of PC and ASIC simulation result comparison.
We decide the test image is 2048x1536 pixels. The hardware executes time about 0.743 second on 40 MHz.
PC simulation (PSNR=54.76 dB) ASIC simulation (PSNR=52.24dB)
Made by 蔡連宗