File:CIE1931xy ColorChecker.svg
| Uploaded by | Cmglee |
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| Upload date | 2013-07-10T18:26:47Z |
| MIME type | image/svg+xml |
| Dimensions | 512 × 544 px |
| File size | 10.2 KB |
Summary
| Description |
English: CIE 1931 xy color space diagram. Drawn (or rather programmatically generated) from scratch, but the visual design is based on File:CIExy1931.png by w:User:PAR. Major differences: *Colors outside the sRGB triangle are clipped toward the sRGB white point, so they have more accurate hues. The original image (and most other images of this type) clips each sRGB channel independently to zero, which among other things leads to the whole top of the diagram being colored #00FF00 (sRGB primary green) when it should be more of a cyan. *Luminance inside the triangle was reduced somewhat. Maximum luminance (the infinity norm) creates a three-pointed star artifact (the lines are #FFFF00, #FF00FF and #00FFFF). Constant luminance (1-norm) looks rather dull. An intermediate p-norm makes nice-looking results without the star. This background image uses p=5 (if I remember right). Gone with the star is the clearly defined white of the D65 white point, which is also an sRGB artifact. *Blurring of the sRGB triangle edges to hide artifacts there. This means the colors near the boundary are slightly less accurate (not maximally saturated). I prefer this to the line artifacts, but it's an issue that could be debated. *Labels at uniform 20nm intervals; left out 380nm and 700nm because the locus doesn't really stop there or anywhere, it just fades into nothingness; no grid on the x + y > 1 region; random tweaks, yada yada yada. |
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This file was derived from: CIE1931xy blank.svg: |
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Licensing
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.
Original upload log
This image is a derivative work of the following images:
- File:CIE1931xy_blank.svg licensed with PD-self
- 2009-09-25T00:57:22Z BenRG 495x526 (6361 Bytes) {{Information |Description=CIE 1931 xy color space diagram. Drawn (or rather programmatically generated) from scratch, but the visual design is based on [[:File:CIExy1931.svg]]. Major differences: *Colors outside the sRGB tri
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Category:CC-BY-SA-3.0
Category:CIE 1931 color space chromaticity diagram
Category:Derivative versions
Category:SVG images with embedded raster graphics:Diagrams
Category:SVG retouched pictures
Category:Translation possible - SVG
Category:Uploaded with derivativeFX
Category:User:cmglee
Category:Valid SVG created with Other tools:Diagrams