| //----------------------------------------------------------------------------- |
| // ____ _ |
| // | ___| | ___ _ _ |
| // | ___| | / __)\ \/ / |
| // | | | |_| ___) | | |
| // |_| \___|\___)/_/\_\ Image Library |
| // |
| // 2007, Intel Corporation, licensed under Apache 2.0 |
| // |
| // file : FlexColor.h |
| // author : Scott Ettinger - scott.m.ettinger@intel.com |
| // description: Color conversion functions |
| // |
| // modified : |
| //----------------------------------------------------------------------------- |
| |
| #ifndef FLEXCOLOR_H |
| #define FLEXCOLOR_H |
| |
| #if defined(HAVE_CONFIG_H) |
| # include "config.h" |
| #endif |
| |
| #include "FlexImage.h" |
| #include <algorithm> |
| |
| ////////////////////////////////////////////////////////////////////////////////////////////////// |
| // RGBToGray Functions |
| // |
| // Names: ippiRGBToGray, ippiRGBToGrayA |
| // |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| template<class T> |
| FIStatus FlexRGBToGray(FlexImage<T,3> &src, FlexImage<T,1> &dst, bool allocate = true); |
| |
| template<class T> |
| FIStatus FlexGrayToRGB(FlexImage<T,1> &src, FlexImage<T,3> &dst, bool allocate = true); |
| |
| |
| |
| //----------------------------------- Implementation ----------------------------------------------- |
| |
| template<class T> |
| FIStatus FlexRGBToGray(FlexImage<T,3> &src, FlexImage<T,1> &dst, bool allocate) |
| { |
| if(allocate) |
| dst.Reallocate(src.Size()); |
| int w = std::min(src.Width(), dst.Width()); //determine number of pixels to copy (intersection of src and dst areas) |
| int h = std::min(src.Height(), dst.Height()); |
| T *pSrc = (T *)src.Data(), *pDst = (T *)dst.Data(); |
| for(int j = 0; j < h; j++) |
| { T *ps = pSrc, *pd = pDst; |
| for(int i = 0; i < w; i++) |
| { *(pd++) = (T)(ps[0] * 0.299f + ps[1] * .587f + ps[2] * .114f); |
| ps += 3; |
| } |
| pSrc = (T *)((char *)pSrc + src.StepBytes()); |
| pDst = (T *)((char *)pDst + dst.StepBytes()); |
| } |
| return 0; |
| } |
| |
| template<class T> |
| FIStatus FlexGrayToRGB(FlexImage<T,1> &src, FlexImage<T,3> &dst, bool allocate) |
| { |
| if(allocate) |
| dst.Reallocate(src.Size()); |
| FlexCopyC1CM(src, dst, 0); //duplicate to all 3 image planes |
| FlexCopyC1CM(src, dst, 1); |
| FlexCopyC1CM(src, dst, 2); |
| return 0; |
| } |
| |
| // ------------------------------- Functions not included for benchmarks --------------------------- |
| |
| /*template<class T> |
| IppStatus ippiRGBToGrayA(FlexImage<T,4> &src, FlexImage<T,1> &dst); |
| */ |
| |
| /* |
| ////////////////////////////////////////////////////////////////////////////////////////////////// |
| // RGBToYCbCr Functions |
| // |
| // Names: ippiRGBToYCbCr, ippiRGBToYCbCrA |
| // |
| // Template Specializations: |
| // ippiRGBToYCbCr : 8u_C3 |
| // ippiRGBToYCbCrA : 8u_C4 |
| // |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| IppStatus ippiRGBToYCbCr(FlexImage<Ipp8u,3> &src, FlexImage<Ipp8u,3> &dst); |
| IppStatus ippiRGBToYCbCrA(FlexImage<Ipp8u,4> &src, FlexImage<Ipp8u,4> &dst); |
| |
| ////////////////////////////////////////////////////////////////////////////////////////////////// |
| // YCbCrToRGB Functions |
| // |
| // Names: ippiYCbCrToRGB, ippiYCbCrToRGBA |
| // |
| // Template Specializations: |
| // ippiYCbCrToRGB : 8u_C3 |
| // ippiYCbCrToRGBA : 8u_C4 |
| // |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| IppStatus ippiYCbCrToRGB(FlexImage<Ipp8u,3> &src, FlexImage<Ipp8u,3> &dst); |
| IppStatus ippiYCbCrToRGBA(FlexImage<Ipp8u,4> &src, FlexImage<Ipp8u,4> &dst); |
| |
| template<class T> |
| IppStatus ippiColorTwist(FlexImage<T, 3> &src, FlexImage<T,3> &dst, const Ipp32f twist[3][4]); |
| template<class T> |
| IppStatus ippiColorTwistI(FlexImage<T, 3> &src, const Ipp32f twist[3][4]); |
| template<class T> |
| IppStatus ippiColorTwistA(FlexImage<T, 4> &src, FlexImage<T,4> &dst, const Ipp32f twist[3][4]); |
| template<class T> |
| IppStatus ippiColorTwistAI(FlexImage<T, 4> &src, const Ipp32f twist[3][4]); |
| |
| */ |
| |
| |
| #endif |
| |
