Estimates hysteresis low and high threshold levels. \n
* Image data type can be IM_BYTE, IM_SHORT or IM_USHORT. \n
* Usefull for \ref imProcessHysteresisThreshold.
*
* \verbatim im.ProcessHysteresisThresEstimate(image: imImage) -> low_level: number, high_level: number [in Lua 5] \endverbatim
* \ingroup threshold
Estimates hysteresis low and high threshold levels. \n * Image data type can be IM_BYTE, IM_SHORT or IM_USHORT. \n * Usefull for \ref imProcessHysteresisThreshold. * * \verbatim im.ProcessHysteresisThresEstimate(image: imImage) -> low_level: number, high_level: number [in Lua 5] \endverbatim * \ingroup threshold