File:CIE1931xy ColorChecker.svg
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Size of this PNG preview of this SVG file: 512 × 544 pixels. Other resolutions: 226 × 240 pixels | 452 × 480 pixels | 723 × 768 pixels | 964 × 1,024 pixels | 1,927 × 2,048 pixels.
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[edit]DescriptionCIE1931xy ColorChecker.svg |
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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SVG development InfoField | This diagram uses embedded text that can be easily translated using a text editor.
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[edit]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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:26, 10 July 2013 | 512 × 544 (10 KB) | Cmglee (talk | contribs) | {{Information |Description={{en|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 trian... |
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Short title | Nominal locations of ColorChecker colours in CIE 1931 xy chromaticity diagram |
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Image title | Nominal locations of ColorChecker colours in CIE 1931 xy chromaticity diagram, by CMG Lee, based on http://commons.wikimedia.org/wiki/File:CIE1931xy_blank.svg and data from http://www.poynton.com/notes/color/GretagMacbeth-ColorChecker.html . |
Width | 100% |
Height | 100% |