facelessuser

"""
Okhsl class.

Translation to/from Oklab is licenced under MIT by the original author, all
other code also licensed under MIT: Copyright (c) 2021 Isaac Muse.

---- Oklab license ----

Copyright (c) 2021 Björn Ottosson

facelessuser

Color Notebook

ColorAide's documentation is rendered with Python Markdown and Pymdown Extensions. The color notebook implements a dynamic, live environment allowing for on the fly page rendering. This is accomplished by using Pyodide to execute the required Python modules to render the desired pages.

Pages can contain most Markdown but also special code blocks called playgrounds. These playgrounds are simple fenced code blocks that allow for a user to input and execute Python code. Each playground exposes access to ColorAide allowing for sandboxes to explore the features of ColorAide. Additionally, the playgrounds will search for color objects, interpolation objects, and color

facelessuser

from coloraide.distance.delta_e_76 import DE76
from coloraide.gamut.fit_lch_chroma import LchChroma
from coloraide import Color as OrigColor


class DEOK(DE76):
    """Delta E OK class."""

    NAME = "ok"
    SPACE = "oklab"

facelessuser

This implements the gamut mapping algorithm according to CSS Level 4 specification.

from coloraide.gamut import Fit
from coloraide.util import NaN


class OklchChroma(Fit):
    """Lch chroma gamut mapping class."""

facelessuser

from coloraide.gamut import Fit, clip_channels
from coloraide.util import NaN


class OklchChroma(Fit):
    """Lch chroma gamut mapping class."""

    NAME = "oklch-chroma"

    EPSILON = 0.0001

facelessuser

print('---- Gamut Mapping with Oklch ----')
class Color2(Color):
    FIT = "oklch-chroma"
colors = ['green', 'blue']
Color2.interpolate(colors, space="lab")
Color2.interpolate(colors, space="lch")
Color2.interpolate(colors, space="oklab")
Color2.interpolate(colors, space="oklch")

print('---- Gamut Mapping with CIE LCH ----')

facelessuser

from coloraide.gamut import Fit, clip_channels
from coloraide.util import NaN


class OklchChroma(Fit):
    """Lch chroma gamut mapping class."""

    NAME = "oklch-chroma"

    EPSILON = 0.0001

facelessuser

inputs = ['red', 'orange', 'yellow', 'green', 'blue', 'indigo', 'violet']
colors = Color(inputs[0]).steps(inputs[1:], steps=20, space='srgb')
colors
ColorRow()
[c.cvd('achromatopsia').clip() for c in colors]
ColorRow()
[c.cvd('brettel-protan').clip() for c in colors]
ColorRow()
[c.cvd('brettel-deutan').clip() for c in colors]
ColorRow()

facelessuser

from coloraide.contrast import ColorContrast

class Weber(ColorContrast):
    """Weber contrast."""

    NAME = "weber"

    @classmethod
    def contrast(cls, color1, color2, **kwargs):
        """Contrast."""

facelessuser

"""CAM16 class."""
import math
from coloraide.spaces import Space, Labish
from coloraide.distance import DeltaE
from coloraide.cat import WHITES
from coloraide.channels import Channel, FLG_ANGLE
from coloraide import util
from coloraide import algebra as alg
from coloraide.types import Vector, VectorLike
from typing import Optional