JPEG 與 JPEG 2000 之分別 ?

JEPG vs JEPG 2000

summary:
-less image degradation
-offer both lossy and lossless compression
-offer encryption capability
-offer sRGB
-allows the user to specify an area of the image to be coded and stored at a higher resolution
-Increased Metadata Capacity

for detail refer to http://www.digitalcustom.com/howto/120100JPEG2000.htm