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JPEG vs JPEG 2000

JPEG vs JPEG 2000. Garret Magin Eric Strehlow. Overview. We have a created a web-based image quality assessment system to have users login and compare JPEG and JPEG 2000 The system includes User creation User Login Test Creation Test Running Results Viewing.

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JPEG vs JPEG 2000

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  1. JPEG vs JPEG 2000 Garret MaginEric Strehlow

  2. Overview • We have a created a web-based image quality assessment system to have users login and compare JPEG and JPEG 2000 • The system includes • User creation • User Login • Test Creation • Test Running • Results Viewing

  3. User Creation/Loginhttp://www.garretmagin.com/school/ece533/ • If first time at site, create a new user account • Login • Admin can create tests • Users can take tests • Users can view results

  4. Create Test • Give the test a name • Put any special notes about test desired • Upload image

  5. Take Test • Choose a test to takeby clicking on the name • View results by clickingthe view results link on the bottom

  6. Tests • Each test is a set of 6 comparisons • The user will compare compressed JPEG and JPEG 2000 images to an original image • Each comparison will be for a different compression ratio (2x, 10x, 25x, 50x, 100x, and 200x) • The user will choose which of the two images more accurately represents the original image • The images will come up in random order and not say if they are JPEG or JPEG 2000 to avoid user bias

  7. Test Examples

  8. More Test Images

  9. Results • The top displays overall results for all tests • Click a test name to see individual test results

  10. Test Results • The top displays overall results for this particular test • Each cell shows results broken down by compression ratio

  11. Conclusions • JPEG 2000 was chosen almost 10 times as often as JPEG • In the typical compression range of 10-50x, JPEG 2000 was almost unanimously chosen • There were no tests where JPEG was chosen more than JPEG 2000

  12. References • JPEG2000 : image compression fundamentals, standards, and practice / David S. Taubman, Michael W. Marcellin. (Wendt Library, 2nd Floor - TK6680.5 T38 2002) • Programming Python (2nd Edition) O'Reilly & Associates • http://www.jpeg.org/JPEG2000.html • http://www.absolutvision.com/jpeg2000.php • http://www.dspworx.com/primer_jpeg_vs__jpeg2000.htm • http://www.aware.com/products/compression/j2kmaindemo.html • http://www.dsp.toronto.edu/~dsp/JPEG2000/JPEG2000_1to50.pdf • http://www.morgan-multimedia.com/jpeg2000_overview.htm • http://www.ee.unsw.edu.au/~taubman/seminars_files/IEEE_IEA_J2K.pdf

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