Package Exports
- husl
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (husl) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
What is HUSL?
HUSL is a human-friendly alternative to the HSL color space. HSL was designed back in the 70s to be computationally cheap. It is a clever geometric transformation of the RGB color space and it does not take into account the complexities of human color vision.
There have long existed color spaces designed for perceptual uniformity. One of these color spaces is CIELUV (and its cylindrically shaped brother CIE LChuv. Like HSL, it defines hue and lightness, but instead of saturation it defines chroma. The problem with its chroma component is that it doesn't fit into a specific range. This makes it very hard to define colors programmatically. HUSL is a modified version of the CIE LChuv color space with a new saturation component.
Testing
Run npm install
and npm test
. Try cake snapshot
to generate a picture of samples from the entire gamut. These picutures are used for regression tests
Thanks to Lajos Ambrus for C and Java ports.
Copyright (C) 2012 Alexei Boronine
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.