2016-11-29 09:09:53 -0600 | asked a question | Use computeNMChannels with the ERFILTER_NM_IHSGRAD option Hello I am trying to use the function computeNMChannels with the ERFILTER_NM_IHSGRAD option instead of the ERFILTER_NM_RGBLGrad default one in a python script. The following line throws an error: Can any one help me? How can Ii use this option? |