HSV.h File Reference

Namespaces
namespace	DD::Image

Functions
bool	DD::Image::RGBtoHSV (float r, float g, float b, float &h, float &s, float &v)
void	DD::Image::HSVtoRGB (float h, float s, float v, float &r, float &g, float &b)
bool	DD::Image::RGBtoHSL (float r, float g, float b, float &H, float &S, float &L)
void	DD::Image::HSLtoRGB (float H, float S, float L, float &r, float &g, float &b)
void	DD::Image::HSVtoHSL (float h, float s, float v, float &H, float &S, float &L)
void	DD::Image::HSLtoHSV (float H, float S, float L, float &h, float &s, float &v)

Detailed Description

Conversion between RGB and HSV and HSL.

The Hue is given in the range 0-1, with 0 being red. Multiply by 360 to get the hue reported by other software. If the hue cannot be determined (due to a gray color) then h is set to 0 and true is returned.

The colors may be outside the 0-1 range, this will result in saturation and value outside the 0-1 range. This may not convert bi-directionally without change.

The RGB values may need to be converted using a DD::Image::LUT to the sRGB space before these functions will return values that match other software.