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Consistent with 48 C.F.R.12.212 and * 48 C.F.R. 227.7202-1 through 227.7202-4 (JUNE 1995), all * U.S. Government End Users acquire the Licensed Deliverables with * only those rights set forth herein. * * Any use of the Licensed Deliverables in individual and commercial * software must include, in the user documentation and internal * comments to the code, the above Disclaimer and U.S. Government End * Users Notice. */ #ifndef NV_NPPI_LINEAR_TRANSFORMS_H #define NV_NPPI_LINEAR_TRANSFORMS_H /** * \file nppi_linear_transforms.h * NPP Image Processing Functionality. */ #include "nppdefs.h" #ifdef __cplusplus extern "C" { #endif /** * \page image_linear_transforms Linear Transforms * @defgroup image_linear_transforms Linear Transforms * @ingroup nppi * * Linear image transformations. * * @{ * * These functions can be found in the nppist library. Linking to only the sub-libraries that you use can significantly * save link time, application load time, and CUDA runtime startup time when using dynamic libraries. * */ /** * \section image_fourier_transforms Fourier Transforms * @defgroup image_fourier_transforms Fourier Transforms * The set of Fourier transform functions available in the library. * @{ * */ /** * 32-bit floating point complex to 32-bit floating point magnitude. * * Converts complex-number pixel image to single channel image computing * the result pixels as the magnitude of the complex values. * \param pSrc \ref source_image_pointer. * \param nSrcStep \ref source_image_line_step. * \param pDst \ref destination_image_pointer. * \param nDstStep \ref destination_image_line_step. * \param oSizeROI \ref roi_specification. * \param nppStreamCtx \ref application_managed_stream_context * \return \ref image_data_error_codes, \ref roi_error_codes */ NppStatus nppiMagnitude_32fc32f_C1R_Ctx(const Npp32fc * pSrc, int nSrcStep, Npp32f * pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx); /** * 32-bit floating point complex to 32-bit floating point magnitude. * * Converts complex-number pixel image to single channel image computing * the result pixels as the magnitude of the complex values. * \param pSrc \ref source_image_pointer. * \param nSrcStep \ref source_image_line_step. * \param pDst \ref destination_image_pointer. * \param nDstStep \ref destination_image_line_step. * \param oSizeROI \ref roi_specification. * \return \ref image_data_error_codes, \ref roi_error_codes */ NppStatus nppiMagnitude_32fc32f_C1R(const Npp32fc * pSrc, int nSrcStep, Npp32f * pDst, int nDstStep, NppiSize oSizeROI); /** * 32-bit floating point complex to 32-bit floating point squared magnitude. * * Converts complex-number pixel image to single channel image computing * the result pixels as the squared magnitude of the complex values. * * The squared magnitude is an itermediate result of magnitude computation and * can thus be computed faster than actual magnitude. If magnitudes are required * for sorting/comparing only, using this function instead of nppiMagnitude_32fc32f_C1R * can be a worthwhile performance optimization. * * \param pSrc \ref source_image_pointer. * \param nSrcStep \ref source_image_line_step. * \param pDst \ref destination_image_pointer. * \param nDstStep \ref destination_image_line_step. * \param oSizeROI \ref roi_specification. * \param nppStreamCtx \ref application_managed_stream_context * \return \ref image_data_error_codes, \ref roi_error_codes */ NppStatus nppiMagnitudeSqr_32fc32f_C1R_Ctx(const Npp32fc * pSrc, int nSrcStep, Npp32f * pDst, int nDstStep, NppiSize oSizeROI, NppStreamContext nppStreamCtx); /** * 32-bit floating point complex to 32-bit floating point squared magnitude. * * Converts complex-number pixel image to single channel image computing * the result pixels as the squared magnitude of the complex values. * * The squared magnitude is an itermediate result of magnitude computation and * can thus be computed faster than actual magnitude. If magnitudes are required * for sorting/comparing only, using this function instead of nppiMagnitude_32fc32f_C1R * can be a worthwhile performance optimization. * * \param pSrc \ref source_image_pointer. * \param nSrcStep \ref source_image_line_step. * \param pDst \ref destination_image_pointer. * \param nDstStep \ref destination_image_line_step. * \param oSizeROI \ref roi_specification. * \return \ref image_data_error_codes, \ref roi_error_codes */ NppStatus nppiMagnitudeSqr_32fc32f_C1R(const Npp32fc * pSrc, int nSrcStep, Npp32f * pDst, int nDstStep, NppiSize oSizeROI); /** @} image_fourier_transforms */ /** @} image_linear_transforms */ #ifdef __cplusplus } /* extern "C" */ #endif #endif /* NV_NPPI_LINEAR_TRANSFORMS_H */