Count the number of different colors in an image. \n
* Image must be IM_BYTE, but can has all color spaces except IM_CMYK.
* Data type can be also IM_SHORT or IM_USHORT if color space is IM_GRAY, IM_BINARY or IM_MAP.
* Not using OpenMP when enabled, when color space depth is greater than 1.
*
* \verbatim im.CalcCountColors(image: imImage) -> count: number [in Lua 5] \endverbatim
* \ingroup stats
Count the number of different colors in an image. \n * Image must be IM_BYTE, but can has all color spaces except IM_CMYK. * Data type can be also IM_SHORT or IM_USHORT if color space is IM_GRAY, IM_BINARY or IM_MAP. * Not using OpenMP when enabled, when color space depth is greater than 1. * * \verbatim im.CalcCountColors(image: imImage) -> count: number [in Lua 5] \endverbatim * \ingroup stats