Color Spaces Filter

Accurate Image Manipulation for Desktops

# Color Spaces Filter

# Description

> Provides some color space conversions.

# Selection Dropdown

> RGB to HLS and HLS to RGB

> > HLS conversion uses the Hunt model. The Hue, Lightness, Saturation the channels will be presented on the Red, Green and Blue channels respectively.

> > > HLS definition specifies the Hue as an angle from 0 to 360. Since the 8-bit space only allows the 256 levels the Hue is compressed, 0...255 is full circle. This gives a small inaccuracy to the conversion.

> > > In this HLS specification the Lightness is not accurate luminance.

> AIM RGB to YCrCb and YCrCb to AIM RGB

> > Y, Cr, Cb channels will be presented on the Red, Green and Blue channels respectively.

> AIM RGB to CIE_XYZ and CIE_XYZ to AIM RGB

> > X, Y and Z channels will be presented on the Red, Green and Blue channels respectively. Level 255 represents 1 in XYZ space.

> AIM RGB to Gray

> > Converts a color image or selection into gray.

# Notes

> Since the R, G and B channels are used for representing these extra color-spaces, (there is no way around this since these are not internal color-spaces to Photoshop) the composite RGB view will be quite useless. Any filtration has to be performed on the individual target channel.

> The AIM RGB is:

> > - Trinitron primaries
> > - Color temperature 6500K (Daylight)
> > - Gamma 1.0

# Sliders

> No sliders.

# Author

> Timo Autiokari. Homepage: Accurate Image Manipulation for Desktops

# Usage and Distribution Rights

> Free to download and use, distribution prohibited.

# Filter Engine

> FilterFormula v 1.1, by ATS/Graphics