https://community.intel.com/t5/Intel-Integrated-Performance/Image-reduction-in-IPP-PCA/m-p/973699#M20759 Dear all,<BR /><BR /><BR />I could not find an image reduction function in IPP 3.0 for PCA. <BR /><BR />I mean: a way to reduce images from a given size to another, smaller one, given a scale factor. For instance, with scale factor 2, a 128 x 128 image would be reduced to a 64 x 64 image.<BR /> <BR />It is strange, for that one seems to me a sufficient generic, simple and important function, a good candidate to be in a library of image processing functions.<BR /><BR />I'd like to ask if there's such a function in IPP 4.0.<BR /><BR />Thanks in advance for any help.<BR /><BR /><BR />Best regards,<BR />Hilton Fernandes Fri, 23 Jan 2004 02:06:53 GMT hilton_fernandes 2004-01-23T02:06:53Z https://community.intel.com/t5/Intel-Integrated-Performance/Image-reduction-in-IPP-PCA/m-p/973699#M20759 Dear all,<BR /><BR /><BR />I could not find an image reduction function in IPP 3.0 for PCA. <BR /><BR />I mean: a way to reduce images from a given size to another, smaller one, given a scale factor. For instance, with scale factor 2, a 128 x 128 image would be reduced to a 64 x 64 image.<BR /> <BR />It is strange, for that one seems to me a sufficient generic, simple and important function, a good candidate to be in a library of image processing functions.<BR /><BR />I'd like to ask if there's such a function in IPP 4.0.<BR /><BR />Thanks in advance for any help.<BR /><BR /><BR />Best regards,<BR />Hilton Fernandes Fri, 23 Jan 2004 02:06:53 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Image-reduction-in-IPP-PCA/m-p/973699#M20759 hilton_fernandes 2004-01-23T02:06:53Z https://community.intel.com/t5/Intel-Integrated-Performance/Image-reduction-in-IPP-PCA/m-p/973700#M20760 <DIV>Dear Customer,<BR />It is correct that we do not have image resize function in old IPP v3.0 for Intel PCA.</DIV> <DIV><BR />WIth the latest version of Intel IPP, we have implemented image resizingwith other image processing functions into one newsingle function: ippiResizeCscRotate. </DIV><FONT face="TimesNewRoman" size="3"> <DIV><BR />This function synthesizes a low-resolution preview image for high-resolution video or still capture applications. In order to maximize bus bandwidth efficiency, several atomic image processing kernels have been combined into a single function. In particular, the following sequence of operations is applied to the raw input image:<BR /><FONT face="TimesNewRoman" size="3"><BR />1. Scale reduction by an integer scale factor. First, the input image scale is reduced by an integer scale factor of either 2, 4 or 8 using the interpolation methodology specified by the control parameter interpolation. The following interpolation schemes are supported: nearest neighbor, bilinear. For each of these, respectively, computational complexity and preview image quality rank from low to high.</FONT></DIV> <P align="left">2. Color space conversion. Following scale reduction, color space conversion is applied according to the control parameter </P></FONT><FONT face="CourierNewPSMT" size="2">colorConversion</FONT><FONT face="TimesNewRoman" size="3">.<P></P> <P align="left">3. Rotation. After color space conversion, the preview output image is rotated according to the control parameter rotation.</P> <DIV></DIV></FONT>Hope it helps and for more details, please read the manual once you fully install Intel IPP v4.0 for Intel PCA. <DIV></DIV> <DIV>If you have any questions with using this function please submit an issue through Intel Premier Support at <A href="https://premier.intel.com" target="_blank">https://premier.intel.com</A> </DIV> <DIV></DIV> <DIV>Thanks,<BR />Ying <BR />Intel IPP <BR /></DIV> Fri, 06 Feb 2004 13:24:23 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Image-reduction-in-IPP-PCA/m-p/973700#M20760 Ying_S_Intel 2004-02-06T13:24:23Z