Original file (1,600 × 480 pixels, file size: 1.19 MB, MIME type: image/png)
This is: a file from the: Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
DescriptionComparison between JPEG, JPEG 2000 and JPEG XR.png |
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/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.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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 XIV 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
Captions
Items portrayed in this file
depicts
22 March 2011
image/png
8d3534f62071718c7d7830fad256e4daac66805e
1,246,034 byte
480 pixel
1,600 pixel
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) | 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) | |
10:04, 2 April 2019 | 1,600 × 480 (1.14 MB) | Kulandru mor | updated JPEG sample using mozjpeg version 3.4.0 | ||
03:14, 27 May 2014 | 1,600 × 480 (1.11 MB) | OgreBot | (BOT): Reverting to most recent version before archival | ||
03:14, 27 May 2014 | 1,600 × 480 (1.14 MB) | OgreBot | (BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2011-07-13 05:49:02 by Skubasteve834 | ||
03:14, 27 May 2014 | 1,600 × 480 (1.85 MB) | OgreBot | (BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2011-03-22 22:01:03 by Skubasteve834 | ||
07:42, 23 May 2014 | 1,600 × 480 (1.11 MB) | FastilyClone | from w:File:Comparison between JPEG, JPEG 2000 and JPEG XR.png (CM) |
File usage
Global file usage
The following other wikis use this file:
Metadata
This file contains additional information, probably added from the digital camera. Or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Height | 480 px |
---|---|
Width | 1,600 px |