First part of the Canny edge detector. Includes the gaussian filtering and the nonmax suppression. \n
* After using this you could apply a Hysteresis Threshold, see \ref imProcessHysteresisThreshold. \n
* Image must be IM_BYTE/IM_GRAY. \n
* Implementation from the book:
\verbatim
J. R. Parker
"Algoritms for Image Processing and Computer Vision"
WILEY
\endverbatim
*
* \verbatim im.ProcessCanny(src_image: imImage, dst_image: imImage, stddev: number) [in Lua 5] \endverbatim
* \verbatim im.ProcessCannyNew(image: imImage, stddev: number) -> new_image: imImage [in Lua 5] \endverbatim
* \ingroup convolve
First part of the Canny edge detector. Includes the gaussian filtering and the nonmax suppression. \n * After using this you could apply a Hysteresis Threshold, see \ref imProcessHysteresisThreshold. \n * Image must be IM_BYTE/IM_GRAY. \n * Implementation from the book: \verbatim J. R. Parker "Algoritms for Image Processing and Computer Vision" WILEY \endverbatim * * \verbatim im.ProcessCanny(src_image: imImage, dst_image: imImage, stddev: number) [in Lua 5] \endverbatim * \verbatim im.ProcessCannyNew(image: imImage, stddev: number) -> new_image: imImage [in Lua 5] \endverbatim * \ingroup convolve