File:Comparison between JPEG, JPEG 2000 and JPEG XR.png
Original file (1,600 × 480 pixels, file size: 1.19 MB, MIME type: image/png)
Summary
| Description |
English: This is a comparison between JPEG 2000, JPEG XR, and JPEG. I used Paint.NET and IrfanView to create this picture. The original photo is cropped out of a very large JPEG and is saved as a PNG file. Then, this PNG version is converted to each of the aforementioned picture file formats. Each photo is 400x480 in size. The basic JPEG is the worst at compression but JPEG XR and JPEG 2000 are very similar. The JPEG 2000 is a bit on the brighter side and tends to do a better job at blending the pixels. The black areas in the JPEG XR develop a checkerboard pattern when zoomed in. |
| Date | (UTC) |
| Source | File:Paris Night.jpg |
| Author |
|
Licensing
|
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
Original upload log
- 2012-10-31 21:36 JeffyP 1600×480× (1166145 bytes) Always small with pngout :P
- 2011-07-13 05:49 Skubasteve834 1600×480× (1195529 bytes) Used OptimizePNG to make the PNG file go from 1.8MB to 1.1MB to save Wikipedia bandwidth.
- 2011-03-23 02:44 Skubasteve834 1600×480× (1936204 bytes) moved lettering
- 2011-03-22 22:05 Skubasteve834 1600×480× (1936204 bytes) {{Information |Description = This is a comparison between Jpeg XR, Jpeg 2000, and Jpeg. I tried to compress the photos as close as possible to 7KB but paint.net and infranview are not exact. The basic jpeg was the worst at compression but Jpeg XR and
- 2011-03-22 22:01 Skubasteve834 1600×480× (1936204 bytes) {{Information |Description = This is a comparison between Jpeg 2000, Jpeg XR, and Jpeg. I used paint.net and infranview to create this picture. The basic jpeg was the worst at compression but Jpeg XR and 2000 were very similar. The Jpeg 2000 is a b
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:05, 2 April 2019 | | 1,600 × 480 (1.19 MB) | commons>Kulandru mor | updated JPEG sample using decoder post-processing described in A. Nosratinia: Enhancement of JPEG-Compressed Images by Re-application of JPEG (https://utdallas.edu/~aria/papers/vlsisp99.pdf) |
File usage
There are no pages that use this file.
