https://community.intel.com/t5/Intel-Integrated-Performance/masks/m-p/974330#M20815 <DIV></DIV> <DIV>Suppose I have an 3 channel 640x480 image. For masked operation on 3-channel images (e.g. ippiCopy_8u_C3R), what size does the mask need to be? From my experiments, it seems like it needs to be 1920x1440 for ippiCopy_8u_C3R to work. In other words there are 3 mask pixels corresponding to each pixel, one mask value for each color channel. My expectation would be that the mask is a 640x4801 channel image for a 640x480 3 channel image, one mask value for every RGB triple. </DIV> Tue, 20 Sep 2005 23:57:53 GMT jpritts 2005-09-20T23:57:53Z https://community.intel.com/t5/Intel-Integrated-Performance/masks/m-p/974330#M20815 <DIV></DIV> <DIV>Suppose I have an 3 channel 640x480 image. For masked operation on 3-channel images (e.g. ippiCopy_8u_C3R), what size does the mask need to be? From my experiments, it seems like it needs to be 1920x1440 for ippiCopy_8u_C3R to work. In other words there are 3 mask pixels corresponding to each pixel, one mask value for each color channel. My expectation would be that the mask is a 640x4801 channel image for a 640x480 3 channel image, one mask value for every RGB triple. </DIV> Tue, 20 Sep 2005 23:57:53 GMT https://community.intel.com/t5/Intel-Integrated-Performance/masks/m-p/974330#M20815 jpritts 2005-09-20T23:57:53Z https://community.intel.com/t5/Intel-Integrated-Performance/masks/m-p/974331#M20816 <P>In IPP masked functions (eg ippiCopy_8u_C3MR) the mask should contain 1 byte for each image pixel. For 3 channel 640x480 mask should be 1 8u channel 640x480. Please check src, dst, mask image steps</P> <P>Alexander</P> <DIV></DIV> Wed, 21 Sep 2005 13:49:30 GMT https://community.intel.com/t5/Intel-Integrated-Performance/masks/m-p/974331#M20816 Intel_C_Intel 2005-09-21T13:49:30Z