File:Gamma correction test picture small.png
Gamma_correction_test_picture_small.png (487 × 186 pixels, file size: 7 KB, MIME type: image/png)
Captions
Summary
[edit]DescriptionGamma correction test picture small.png |
English: Gamma Correction test image
Deutsch: Gamma Korrektur Testbild |
Date | |
Source | Wikipedia Germany Farbabgleich_Testbild.png |
Author | Andre Adrian |
The test image needs pixel accurate display. Use Wikipedia picture attribute frame and web browser zoom 100%. The average lightness of the 3%/97% lightness checkered area is integrated in the observers eye to 50% lightness. The non-checkered area lightness is 0.5^(1/gamma). If the system gamma (operating system, graphics card, monitor) is equal to the test image gamma, checkered and non-checkered areas have the same lightness.
Licensing
[edit]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.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 23:02, 30 November 2018 | 487 × 186 (7 KB) | AndreAdrian (talk | contribs) | Horizontal lines instead of checkered pattern to avoid distrortion due to monitor rise time. | |
14:15, 29 November 2018 | 488 × 186 (6 KB) | AndreAdrian (talk | contribs) | Use checkered area lightness 3%/97% to avoid non-linearity problems with lightness 0%/100%. | ||
15:18, 28 November 2018 | 487 × 186 (6 KB) | AndreAdrian (talk | contribs) | Add gamma value, Same look as Gamma_correction_test_picture_small.png and Gamma_correction_test_picture_large.png | ||
20:14, 26 November 2018 | 453 × 302 (9 KB) | AndreAdrian (talk | contribs) | test image set for Gamma=2.5 | ||
00:09, 26 November 2018 | 451 × 300 (10 KB) | AndreAdrian (talk | contribs) | Have brightness, contrast area instead of grey Gamma correction area | ||
17:07, 23 November 2018 | 377 × 302 (4 KB) | AndreAdrian (talk | contribs) | No white border. RGB value of 50% non-checkered is now 128, was 127. | ||
09:53, 22 November 2018 | 379 × 304 (3 KB) | AndreAdrian (talk | contribs) | {{Information |description ={{en|1=Gamma Correction test picture}} {{de|1=Gamma Korrektur Testbild}} |date =2018-11-21 |source =Wikipedia Germany Farbabgleich_Testbild.png |author =Andre Adrian }} Display this picture without scaling, that is, use Wikipedia picture attribute frame. |
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Horizontal resolution | 37.79 dpc |
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Vertical resolution | 37.79 dpc |