Comments (9)
You can do it by yourself with the current methods, but anyway, in my fork, I'm already coding a method to compute the std deviation and also the n-most representative colors (with a configurable callback) for an array of colors. Will mention here when ready.
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What do you mean by variance for a list of colors?
Distance between colors is defined totally different in different spaces and/or methods.
There is not a method in chroma.js to output a "variance" but you have multiple methods to output a distance between 2 colors which you can use for your intended usage. Which one is the mean value is up to you, and that depends on the color space.
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So one use-case is a color-based image quad tree (like this), where, for each region of an image, you need to decide if it should be subdivided, based on how much color variance it contains.
Not sure if its in scope, but would be ideal, at least for teaching, to be able to take the list of colors extracted from the pixels in the region/channel (and possibly also a color space), and pass it to chroma to compute the variance and/or standard deviation.
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Added
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amazing - when will the next release happen ?
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Just download the compiled chroma***.js files, they are always up to date. Look at the docs for info.
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I guess I was referring to the npm version, which is currently on 2.4.2... Of course I can dl directly but I'm teaching node/npm this week, so was hoping to use chroma as an example (along with quad trees)
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Fork is not published on npm.
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is it in any cdn, other than github ?
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Related Issues (20)
- gh-pages demo has an uncaught TypeError in Promise HOT 1
- Is there a way to toggle scale reverse?
- Color scale look up table?
- HCL / LCH plain js object not constructing the correct colors. HOT 1
- Brewer scales does not seem accurate
- [Question] State of this library? HOT 1
- Add OkHSV/OkHSL support. HOT 1
- Add ARGB
- Feature request: Add a way to retrieve the domain from a color scale
- Updated fork HOT 18
- Got hue value `NaN` from chroma('#000000').oklch() HOT 1
- rollup-plugin-terser has been deprecated HOT 6
- OKLCH support in `css()` HOT 5
- Inquiry regarding re-exposure of chroma.js
- BUG: scale.colors() does not respect the change in domain HOT 2
- External 404 in docs
- Unhandled error with a decimal gamma value and input out of domain HOT 2
- color returned by the `oklch()` function does not match input color space CSS
- HSL to RGB forces rounding even with rgb(false)
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