Hi,
i'm trying to migrate to 9.0. I found that ippirotate isno longer available and I found an article how to roate using warping functions. But that does not work. I want to rotate around the image center and the destination image resize is enlarged to show the whole rotated image:
IppiSize srcSize = { i_src.getWidth(), i_src.getHeight() }; IppiRect srcRect = { 0, 0, i_src.getWidth(), i_src.getHeight() }; float64 coeffs[2][3]; float64 bound[2][2]; float64 shiftX; float64 shiftY; auto status = ippiGetRotateShift(srcSize.width / 2, srcSize.height / 2, degrees, &shiftX, &shiftY); status = ippiGetRotateTransform(degrees, -shiftX, shiftY, coeffs); status = ippiGetAffineBound(srcRect, bound, coeffs); IppiSize dstSize = { bound[1][0] - bound[0][0] + 1, bound[1][1] - bound[0][1] + 1 }; cImg dstImg(i_src.getImgType().getTypeId(), dstSize.width, dstSize.height); sint32 specSize = 0; sint32 bufferSize = 0; float64 borderValue[] = { 0 }; status = ippiWarpAffineGetSize(srcSize, dstSize, ipp8u, coeffs, ippLinear, ippWarpForward, ippBorderConst, &specSize, &bufferSize); IppiWarpSpec *spec = reinterpret_cast<IppiWarpSpec *>(ippsMalloc_8u(specSize)); status = ippiWarpAffineLinearInit(srcSize, dstSize, ipp8u, coeffs, ippWarpForward, 1, ippBorderConst, borderValue, 0, spec); m_buffer.resize(bufferSize); IppiPoint dstOffset = { 0, 0 }; status = ippiWarpAffineLinear_8u_C1R(i_src.getPixel<uint8>(0, 0), i_src.getYPitch(), dstImg.getPixel<uint8>(0, 0), dstImg.getYPitch(), dstOffset, dstSize, spec, m_buffer.data());
But the resulting image is wlays slightly outside the image boundaries.