https://community.intel.com/t5/Intel-Integrated-Performance/Image-thresholding-question/m-p/849233#M6376 I am trying to threshold an image with threshold value x. If pixel value is greater than x, it will be set with value y. Less or equal to x then set to value z. The image is 8-bit and one channel. It seems the function ippiThreshold_LTValGTVal_8u_C1R() should be my choice. But it leaves the pixel with value x alone. <BR />Do I have other options to just run IPP routine once to get what I wanted?<BR /> Thu, 28 Jun 2007 21:41:20 GMT Nan_Z_ 2007-06-28T21:41:20Z https://community.intel.com/t5/Intel-Integrated-Performance/Image-thresholding-question/m-p/849233#M6376 I am trying to threshold an image with threshold value x. If pixel value is greater than x, it will be set with value y. Less or equal to x then set to value z. The image is 8-bit and one channel. It seems the function ippiThreshold_LTValGTVal_8u_C1R() should be my choice. But it leaves the pixel with value x alone. <BR />Do I have other options to just run IPP routine once to get what I wanted?<BR /> Thu, 28 Jun 2007 21:41:20 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Image-thresholding-question/m-p/849233#M6376 Nan_Z_ 2007-06-28T21:41:20Z https://community.intel.com/t5/Intel-Integrated-Performance/Image-thresholding-question/m-p/849234#M6377 Try ippiLUT_8u_C1IR function. Sat, 30 Jun 2007 12:41:30 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Image-thresholding-question/m-p/849234#M6377 alexfarber 2007-06-30T12:41:30Z