Changes a binary data (0,1) into a gray BYTE data (0,255), done in-place. * Color space is not changed. Data type must be IM_BYTE. * * \verbatim image:MakeGray() [in Lua 5] \endverbatim * \ingroup imgclass
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Changes a binary data (0,1) into a gray BYTE data (0,255), done in-place. * Color space is not changed. Data type must be IM_BYTE. * * \verbatim image:MakeGray() [in Lua 5] \endverbatim * \ingroup imgclass