Color filtering in HSL color space.

Namespace:  AForge.Imaging.Filters
Assembly:  AForge.Imaging (in AForge.Imaging.dll) Version: 2.2.5.0 (2.2.5.0)

Syntax

C#
public class HSLFiltering : BaseInPlacePartialFilter

Remarks

The filter operates in HSL color space and filters pixels, which color is inside/outside of the specified HSL range - it keeps pixels with colors inside/outside of the specified range and fills the rest with specified color.

The filter accepts 24 and 32 bpp color images for processing.

Sample usage:

CopyC#
// create filter
HSLFiltering filter = new HSLFiltering( );
// set color ranges to keep
filter.Hue = new IntRange( 335, 0 );
filter.Saturation = new Range( 0.6f, 1 );
filter.Luminance = new Range( 0.1f, 1 );
// apply the filter
filter.ApplyInPlace( image );

Initial image:

Result image:

Sample usage with saturation update only:

CopyC#
// create filter
HSLFiltering filter = new HSLFiltering( );
// configure the filter
filter.Hue = new IntRange( 340, 20 );
filter.UpdateLuminance = false;
filter.UpdateHue = false;
// apply the filter
filter.ApplyInPlace( image );

Result image:

Inheritance Hierarchy

System..::.Object
  AForge.Imaging.Filters..::.BaseInPlacePartialFilter
    AForge.Imaging.Filters..::.HSLFiltering

See Also