File:Comparison between JPEG, JPEG 2000 and JPEG XR.png
本预览的尺寸：800 × 240像素。 其他分辨率：640 × 192像素 | 1,600 × 480像素。
原始文件 （1,600 × 480像素，文件大小：1.19 MB，MIME类型：image/png）
摘要
| 描述 |
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. |
| 日期 | (UTC) |
| 来源 | File:Paris Night.jpg |
| 作者 |
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许可协议
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已授权您依据自由软件基金会发行的无固定段落及封面封底文字（Invariant Sections, Front-Cover Texts, and Back-Cover Texts）的GNU自由文件许可协议1.2版或任意后续版本的条款，复制、传播和／或修改本文件。该协议的副本请见“GNU Free Documentation License”。 |
原始上传日志
原始描述頁面位於這裡。下列使用者名稱均來自en.wikipedia。
- 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
文件历史
点击某个日期/时间查看对应时刻的文件。
| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2019年4月2日 (二) 11:05 | | 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) |
| 2019年4月2日 (二) 10:04 |  | 1,600 × 480（1.14 MB） | Kulandru mor | updated JPEG sample using mozjpeg version 3.4.0 | |
| 2014年5月27日 (二) 03:14 |  | 1,600 × 480（1.11 MB） | OgreBot | (BOT): Reverting to most recent version before archival | |
| 2014年5月27日 (二) 03:14 |  | 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 | |
| 2014年5月27日 (二) 03:14 |  | 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 | |
| 2014年5月23日 (五) 07:42 |  | 1,600 × 480（1.11 MB） | FastilyClone | from w:File:Comparison between JPEG, JPEG 2000 and JPEG XR.png (CM) |
文件用途
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