TwibrightLinksTestCard.png (480 × 480 pixels, file size: 17 KB, MIME type: image/png)

Summary

Description

This is the test card Twibright Links web browser is shipped with since 2001, when it was equipped with graphics capability. The white circle facilitates aspect ratio adjustment. The large color fields are for gamma calibration. With proper calibration, the splits in the middle of the color fields blend together. The wedge somewhat helps setting the correct brightness position to prevent black cutoff of pedestal. The smaller patterned squares contain maximum spatial frequency and 1/2 maximum spatial frequency white-black patterns. They can be used to diagnose problems with insufficient display bandwidth.

The test card has been designed by Karel Kulhavy, the author of the graphical core of Twibright Links.
Date
Source Own work
Author Karel 'Clock' Kulhavy
Permission
(Reusing this file)		 It's my own work.

Licensing

GNU head 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.
w:en:Creative Commons
attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
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.
This licensing tag was added to this file as part of the GFDL licensing update.

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copyright status

copyrighted

copyright license

GNU Free Documentation License, version 1.2 or later

Creative Commons Attribution-ShareAlike 3.0 Unported

inception

2001

data size

17,148 byte

height

480 pixel

width

480 pixel

media type

image/png

checksum

29e6f648f05b4d9cc775bbabee477bc5aa80d25e

determination method or standard: SHA-1

File history

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Date/TimeThumbnailDimensionsUserComment
current20:16, 25 December 2006Thumbnail for version as of 20:16, 25 December 2006480 × 480 (17 KB)Clock twibright{{Information |Description=This is the test card Twibright Links web browser is shipped with since 2001, when it was equipped with graphics capability. The white circle facilitates aspect ratio adjustment. The large color fields are for gamma calibration.

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