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File:VIC-II PAL Palette Map.png

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Original file (515 × 1,738 pixels, file size: 45 KB, MIME type: image/png)

Summary

Description

The colour palette of the MOS Technology 6569 graphics chip (VIC-II in the PAL version, used in the Commodore 64). The values are based on research by Philip Timmermann. Source: [1]

Note on the text at the top of the image: unlike in the IBM16 and Win16 palettes, which are in a regular stepping in relation to an RGB intensity (for example 0, 1/3, 2/3 and 1 in the case of IBM16), the RGB values given here for the VIC-II palette are translations of values from the PAL YUV model, and furthermore are after gamma correction (see the link to Timmermann’s page for details). Therefore, colour space and gamma information must be given in order to maintain exactitude. I have made the information part of the image for the case that an image viewer or editor ignores the relevant chunks.
Date 7 June 2006 (original upload date)
Source No machine-readable source provided. Own work assumed (based on copyright claims).
Author No machine-readable author provided. Shlomital~commonswiki assumed (based on copyright claims).

Orthopraxy

For any PNG screenshot from a Commodore 64 emulator, it is recommended to fix the colours to have the values as here if they are not so, and then add a gAMA chunk with a value of 45455 (hexadecimal B18F) and an sRGB chunk with rendering intent 1 (relative colorimetric, which is the best for most screenshots), and optionally a cHRM chunk with the values given in the image (multiplied by 100,000).

On a slightly different, but related, note, many C64 games are in a mode that halves the horizontal resolution in order to increase the number of possible colour values per pixel. To find if the game is in this mode, resize (do not resample) the width to 50%, then resize it to 200%. If you end up with the same image you started, add a pHYs chunk with a value of 2 for the width and 1 for the height in the type “unknown unit” (type 0). This notifies that each pixel has an aspect ration of 2 to 1. The image should have a size of 320×200 in both cases.

Image information

Portable Network Graphics image, 515 pixels wide, 1738 pixels high, 8 bits per sample, RGB, suggested palette included (name: Commodore 64 VIC-II), 3780 pixels per metre (96 pixels per inch), 1/2.2 (0.45455) gamma, sRGB with relative colorimetric rendering intent. Created with The GIMP 2.2.10, Netpbm 10.27.0 and pngcrush 1.5.10 on Wednesday the 7th of June 2006.

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Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
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.
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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.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic 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.
You may select the license of your choice.

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7 June 2006

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File history

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Date/TimeThumbnailDimensionsUserComment
current14:44, 20 June 2006Thumbnail for version as of 14:44, 20 June 2006515 × 1,738 (45 KB)Shlomital~commonswikiadded sPLT chunk with the described palette
09:44, 9 June 2006Thumbnail for version as of 09:44, 9 June 2006515 × 1,738 (45 KB)Shlomital~commonswikiadded "Comment" zTXt chunk; corrected Pepto's surname
21:15, 7 June 2006Thumbnail for version as of 21:15, 7 June 2006515 × 1,738 (45 KB)Shlomital~commonswikiMOS Technology 6569 (VIC-II, PAL) palette map
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