(PHP 4 >= 4.0.1, PHP 5)imagecolorclosesthwb -- Get the index of the color which has the hue, white and blackness nearest to the given color
This function is currently not documented; only the argument list is available.
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
Value of red component
Value of green component
Value of blue component