The following are magnified sections for each of the above images.
IJG JPEG, 8253 Bytes
IJG JPEG, 8253 Bytes
The following images are compressed by each codec to approximately the same PSNR.
In my opinion they are not all equal in subjective quality, however I leave it to the reader to make his/her own determinations.
DLI, 5178 Bytes (152:1), 33.07 Y-PSNR
IJG JPEG, 12861 Bytes (61:1), 33.17 Y-PSNR
The following are magnified sections for each of the above images.
IJG JPEG, 12861 Bytes (61:1), 33.17 Y-PSNR
To emphasize the compression artifacts each codec introduces, here is Lena compressed at a very high 200:1.
DLI, 3897 Bytes
Kakadu JPEG2000, 3934 Bytes
Jasper JPEG2000, 3923 Bytes
HD Photo (WMP), 4033 Bytes
IJG JPEG, 3932 Bytes
The following are magnified sections for each of the above images.
DLI, 3897 Bytes
Kakadu JPEG2000, 3934 Bytes
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