https://community.intel.com/t5/Intel-Integrated-Performance/Sobel-question/m-p/905695#M13412 Hello ,<BR /><BR />I'm working Edge dection using IPP 6. There issome quesions I'm lost. Could you help me?<BR /><BR />I updated two images,<BR /><BR />1) Source image(src.jpg)<BR /><BR />2)Overlay image( Overlay.jpg): isto overlay source image using Sobel ouptut image. I use both horizonal and vertial operator andthe source image is 8 bit unsigned image.<BR /><BR />My qeustion is:<BR /><BR />1) Why the result edgeis at left sideof image?<BR /><BR />2) I only get 2 edges. I think it should be 4edges retangle since the source image is a BLACK retangle.<BR /><BR /><BR />Thanks,<BR /><BR />Daniel wang<BR /><BR /><BR /><BR /><BR /><BR /><BR /> Thu, 12 Feb 2009 21:20:17 GMT danielwang1971 2009-02-12T21:20:17Z https://community.intel.com/t5/Intel-Integrated-Performance/Sobel-question/m-p/905695#M13412 Hello ,<BR /><BR />I'm working Edge dection using IPP 6. There issome quesions I'm lost. Could you help me?<BR /><BR />I updated two images,<BR /><BR />1) Source image(src.jpg)<BR /><BR />2)Overlay image( Overlay.jpg): isto overlay source image using Sobel ouptut image. I use both horizonal and vertial operator andthe source image is 8 bit unsigned image.<BR /><BR />My qeustion is:<BR /><BR />1) Why the result edgeis at left sideof image?<BR /><BR />2) I only get 2 edges. I think it should be 4edges retangle since the source image is a BLACK retangle.<BR /><BR /><BR />Thanks,<BR /><BR />Daniel wang<BR /><BR /><BR /><BR /><BR /><BR /><BR /> Thu, 12 Feb 2009 21:20:17 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Sobel-question/m-p/905695#M13412 danielwang1971 2009-02-12T21:20:17Z https://community.intel.com/t5/Intel-Integrated-Performance/Sobel-question/m-p/905696#M13413 <DIV style="margin:0px;"></DIV> Danial,<BR /><BR />I'm affraid I did not get your question. Did you notice sobel filter implementation in IPP picnic application (you may find it in image-codecs samples)?<BR /><BR />Regards,<BR /> Vladimir<BR /> Sun, 15 Feb 2009 21:19:44 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Sobel-question/m-p/905696#M13413 Vladimir_Dudnik 2009-02-15T21:19:44Z