Info on Grad Schools:
Buy Books, CDs, & Videos:
Digital Camera:
Rio MP3 Player:
Diamond Rio 500 Portable MP3 Player
Memory Upgrade:
$1.23 per issue:
Ebay Auction:
$1.83 per issue:
|
Bid4Vacations: Holiday travel sale going on now!
Image Compression
The following is a demonstration of JPEG/JPEG200 Compression of Color Image
 |
| Original Image --- 24 bpp |
|
 |
| JPEG --- 2 bpp |
|
 |
| JPEG2000 --- 2 bpp |
|
 |
| JPEG --- 1 bpp |
|
 |
| JPEG2000 --- 1 bpp |
|
 |
| JPEG --- 0.5 bpp |
|
 |
| JPEG2000 --- 0.5 bpp |
|
The following is a demonstration of JPEG/JPEG200 Compression of Gray-Scaled Image
 |
| Original Image --- 8 bpp |
|
 |
| JPEG --- 1 bpp |
|
 |
| JPEG2000 --- 1 bpp |
|
 |
| JPEG --- 0.67 bpp |
|
 |
| JPEG2000 --- 0.67 bpp |
|
 |
| JPEG --- 0.27 bpp |
|
 |
| JPEG2000 --- 0.27 bpp |
|
The following is a performance comparison of JPEG and JPEG2000
on the gray-scaled image LENA (512x512).
|
JPEG |
JPEG2000 |
| Rate (bpp) |
PSNR (db) |
PSNR (db) |
| 0.06 |
--- |
27.90 |
| 0.10 |
17.96 |
29.98 |
| 0.15 |
24.77 |
31.74 |
| 0.25 |
30.41 |
34.13 |
| 0.50 |
34.75 |
37.33 |
| 1.00 |
37.80 |
40.43 |
| 2.00 |
41.05 |
44.93 |
|
