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Based on the human perception of color, the HSL model describes three fundamental characteristics of color:
• Hue is the color reflected from or transmitted through an object. It is measured as a location on the standard color wheel, expressed as a degree between 0° and 360° . In common use, hue is identified by the name of the color such as red, orange, or green.
• Saturation, sometimes called chroma, is the strength or purity of the
color. Saturation represents the amount of gray in proportion to the hue,
measured as a percentage from 0% (gray) to 100% (fully saturated). On the
standard color wheel, saturation increases from the center to the
• Lightness is the relative brightness or darkness of the color, usually measured as a percentage from 0% (black) to 100% (white).
A. Saturation B. Hue C. Lightness D. All hues
The Filter HSL allows you to change the colour of the picture with the other colour base, using hue, saturation and lightness parameters. Changing saturation turns your picture more colourful. Change of the lightness gives the more realistic effect than the change of the brightness.
Resize filter | Brightness / Contrast filter | RGB filter | Grayscale
filter | Blur filter | Motion blur filter
Soften filter | Sharpen filter | Emboss filter | Dilate filter | Erode filter | Colorize filter | HSL filter
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