Javascript debugger
Website design
↑
Imagick::contrastStretchImage
Enhances the contrast of a color image
()
bool Imagick::contrastStretchImage ( float black_point, float white_point [, int channel] )
Warning:
This function is currently not documented; only the argument list is available.
Warning:
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function at your own risk.
Enhances the contrast of a color image by adjusting the pixels color to span the entire range of colors available