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Size of this PNG preview of this SVG file: 605 × 115 pixels. Other resolutions: 320 × 61 pixels | 640 × 122 pixels | 800 × 152 pixels | 1,024 × 195 pixels | 1,280 × 243 pixels | 2,560 × 487 pixels.
Original file (SVG file, nominally 605 × 115 pixels, file size: 4 KB)
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Summary
| Description | English: A linear representation of the visible light spectrum. Colour ranges were taken from 'CRC Handbook of Fundamental Spectroscopic Correlation Charts' (see w:Visible spectrum). Spectral XYZ locus coordinates were found here. Every 10nm, the spectral locus point was used as the initial point in a search for a matching sRGB colour (assuming "Dim" viewing condition). The search was carried out by a binary search along a line in JCh space between the spectral point, and a point with 0.3 * brightness (J), 0 chroma (C), and the same hue (h) as the spectral point. The search finished when a point was found that was in sRGB space. The CAT02 matrix was modified as suggested in Brill(2008) to reduce yellow-blue problems by replacing the bottom row (0.0030, 0.0136, 0.9834) with (0,0,1). An iterative smoothing was carried out to eliminate the largest jumps in chroma (greater than 5% change). Code used to generate the colour gradient can be found here. Esperanto: Koloroj videblaj Nederlands: Kleurenspectrum 中文（简体）: 软件模拟的可见光谱。 中文（繁體）: 軟體模擬的可見光譜。 |
| Date | |
| Source | Own work |
| Author | Gringer |
| Other versions | Derivative works of this file:
|
Licensing
| Public domainPublic domainfalsefalse |
 | I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
File history
Click on a date/time to view the file as it appeared at that time.
(newest | oldest) View (newer 10 | older 10) (10 | 20 | 50 | 100 | 250 | 500)| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:22, 16 June 2020 | 605 × 115 (4 KB) | Jarvisa | Simplified SVG source | |
| 05:28, 5 August 2010 | 605 × 115 (18 KB) | Gringer | 10-step iterative chroma smoothing, slightly brighter grey point | ||
| 15:34, 4 August 2010 | 605 × 115 (18 KB) | Gringer | Smoothing applied to largest reduction in saturation (blue to cyan) | ||
| 14:40, 4 August 2010 | 605 × 115 (18 KB) | Gringer | Only using one adaptation matrix, finer resolution at blue clip point | ||
| 13:12, 3 August 2010 | 605 × 115 (18 KB) | Gringer | using Chroma-based cartesian coordinates for search | ||
| 12:44, 3 August 2010 | 605 × 115 (18 KB) | Gringer | Modified MH matrix slightly based on [http://www3.interscience.wiley.com/journal/112396194/abstract this] | ||
| 11:51, 3 August 2010 | 605 × 115 (18 KB) | Gringer | whoops, that was an older version | ||
| 11:43, 3 August 2010 | 605 × 115 (13 KB) | Gringer | slightly different MCAT02 matrix, different binary search algorithm | ||
| 16:06, 31 July 2010 | 605 × 115 (18 KB) | Gringer | using CIECAM02 model | ||
| 11:00, 29 July 2010 | 605 × 115 (18 KB) | Gringer | adjusting intensity between linear sRGB and non-linear sRGB, as gamma correction is encoded into that transform. |
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The following pages on the English Wikipedia use this file (pages on other projects are not listed):
- Blue
- Blue–green distinction in language
- Candela
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- Photic zone
- Red-violet
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- Violet (color)
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- Vision in fish
- Talk:Blue–green distinction in language
- Talk:Visible spectrum
- User:Chem507f10grp1/sandbox
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- User:Mgkrupa/Articles
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- User:RadicalOne/LitterBox
- User:Roscoe x
- Wikipedia:Reference desk/Archives/Science/2012 July 12
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