Unicolour

• Add MacAdam limits check and mapping
  • colour.IsInMacAdamLimits
  • colour.MapToMacAdamLimits()
• Use ICC D50 illuminant instead of header PCS illuminant when applying ICC profile transforms with absolute intent

Unicolour.Datasets

• Add MacAdam limits dataset

🎁 NuGet

• 🌈 Wacton.Unicolour 6.3.0
• 🔮 Wacton.Unicolour.Datasets 3.1.0
• 🥽 Wacton.Unicolour.Experimental 1.0.1

Unicolour

• Add Munsell HVC colour space

🎁 NuGet

• 🌈 Wacton.Unicolour 6.2.0
• 🔮 Wacton.Unicolour.Datasets 3.0.1
• 🥽 Wacton.Unicolour.Experimental 1.0.1

Unicolour

• Add LMS colour space
• Add new colour vision deficiency simulations
  • Protanomaly
  • Deuteranomaly
  • Tritanomaly
  • Blue cone monochromacy
• Support reading ICC profiles from byte[] and Stream

🎁 NuGet

• 🌈 Wacton.Unicolour 6.1.0
• 🔮 Wacton.Unicolour.Datasets 3.0.1
• 🥽 Wacton.Unicolour.Experimental 1.0.1

Unicolour

• Add new default RGB configurations
  • Rec. 2100 PQ
  • Rec. 2100 HLG
• Add DynamicRange for configuration of HDR spaces (ICtCp, Jzazbz, JzCzhz, Rec. 2100 PQ RGB, Rec. 2100 HLG RGB), with predefined options
  • SDR
  • HDR
• Update HDR colour spaces to use a white luminance of 203 cd/m² by default, instead of 100 cd/m²
• Add Pointer's gamut check and mapping
  • colour.IsInPointerGamut
  • colour.MapToPointerGamut()
• Add new colour spaces
  • Oklrab
  • Oklrch
• Add colour blending and compositing
  • colour.Blend(backdrop, BlendMode.Screen)
• Allow custom chromatic adaptation, overriding the default Bradford method
  • XyzConfiguration xyzConfig = new(Illuminant.D65, Observer.Degree2, adaptation: new double[,] { ... })
• Add deconstruction and ToArray() for convenience
  • var (r, g, b) = colour.Rgb.Triplet ⟶ var (r, g, b) = colour.Rgb
  • double[] rgb = colour.Rgb.ToArray()
• Improve basic constructor speed by 95%

Unicolour.Datasets

• Support Unicolour v6 configuration

Unicolour.Experimental

• Support Unicolour v6 configuration

🎁 NuGet

• 🌈 Wacton.Unicolour 6.0.0
• 🔮 Wacton.Unicolour.Datasets 3.0.1
• 🥽 Wacton.Unicolour.Experimental 1.0.1

Unicolour

• Introduce pigments, which can be constructed from either absorption k and scattering s coefficients (two-constant) or a reflectance curve r (single-constant)
• Enable Unicolour creation from a list of pigments and their concentrations
• Add .Palette() as an alternative to .Mix() to easily acquire a range of interpolated colours
• Clarify gamut mapping API
  • colour.IsInDisplayGamut ⟶ colour.IsInRgbGamut
  • colour.MapToGamut() ⟶ colour.MapToRgbGamut()
• Add two new gamut mapping options, alongside the default Oklch chroma reduction
  • RGB clipping
  • WXY purity reduction
• Improve colour vision deficiency API
  • e.g. colour.SimulateProtanopia() ⟶ colour.Simulate(Cvd.Protanopia)
• Improve SPD API
  • e.g. new Spd({ { 575, 0.5 }, { 580, 1.0 }, { 585, 0.5 } }) ⟶ new Spd(575, 5, [0.5, 1.0, 0.5])
• Fix comparison of colours with different configurations
• Rename configuration property
  • colour.Config ⟶ colour.Configuration

Unicolour.Datasets

• Add a dataset of pigments created from two-constant measurements (Artist Paint Spectral Database)

Unicolour.Experimental

• Introduce new package of experimental additions
• Add single-constant pigment generation from any colour
• Add Spectral.js implementation, extended to be able to mix more than two colours

🎁 NuGet

• 🌈 Wacton.Unicolour 5.0.0
• 🔮 Wacton.Unicolour.Datasets 3.0.0
• 🥽 Wacton.Unicolour.Experimental 1.0.0

• Add support for ICC profiles with TRC transforms
• Add support for ICC profiles with Input profile/device class
• Add support for ICC profiles with Device profile/device class

🌈🎁 Wacton.Unicolour NuGet Package
🔮🎁 Wacton.Unicolour.Datasets NuGet Package

• Add support for ICC profiles (v4, ColorSpace device, XYZ PCS) for CMYK conversion
• Improve Unicolour constructor performance

🌈🎁 Wacton.Unicolour NuGet Package
🔮🎁 Wacton.Unicolour.Datasets NuGet Package

• Add support for ICC profiles (v2, Output device, LAB PCS) for CMYK conversion

🌈🎁 Wacton.Unicolour NuGet Package
🔮🎁 Wacton.Unicolour.Datasets NuGet Package

• Add WXY colour space
• Fix dominant wavelength calculation in cases where the spectral locus intersect was dominant but line of purples was closer
• Make excitation purity and imaginary calculations more robust to edge cases, e.g. imaginary white point

🌈🎁 Wacton.Unicolour NuGet Package
🔮🎁 Wacton.Unicolour.Datasets NuGet Package

• Add new colour spaces
  • HSI
  • TSL
  • XYB
• Update relative luminance calculation to no longer use hardcoded sRGB coefficients

🌈🎁 Wacton.Unicolour NuGet Package
🔮🎁 Wacton.Unicolour.Datasets NuGet Package