Creates a kernel with the following values: * \verbatim 1 2 1 0 0 0 -1 -2 -1 \endverbatim * * \verbatim im.KernelSobel() -> kernel: imImage [in Lua 5] \endverbatim * \ingroup kernel
See Implementation
Creates a kernel with the following values: * \verbatim 1 2 1 0 0 0 -1 -2 -1 \endverbatim * * \verbatim im.KernelSobel() -> kernel: imImage [in Lua 5] \endverbatim * \ingroup kernel