read_fft_optimization_dataread_fft_optimization_dataReadFftOptimizationDataReadFftOptimizationData (Operator)

Name

read_fft_optimization_dataread_fft_optimization_dataReadFftOptimizationDataReadFftOptimizationData — Load FFT speed optimization data from a file.

Signature

read_fft_optimization_data( : : FileName : )

Herror read_fft_optimization_data(const char* FileName)

Herror T_read_fft_optimization_data(const Htuple FileName)

void ReadFftOptimizationData(const HTuple& FileName)

static void HMisc::ReadFftOptimizationData(const HString& FileName)

static void HMisc::ReadFftOptimizationData(const char* FileName)

static void HMisc::ReadFftOptimizationData(const wchar_t* FileName)   (Windows only)

static void HOperatorSet.ReadFftOptimizationData(HTuple fileName)

static void HMisc.ReadFftOptimizationData(string fileName)

Description

read_fft_optimization_dataread_fft_optimization_dataReadFftOptimizationDataReadFftOptimizationDataReadFftOptimizationData loads data for optimizing the runtime of the FFT from the file given by FileNameFileNameFileNameFileNamefileName. The optimization data must have been determined previously with optimize_fft_speedoptimize_fft_speedOptimizeFftSpeedOptimizeFftSpeedOptimizeFftSpeed and must have been stored with write_fft_optimization_datawrite_fft_optimization_dataWriteFftOptimizationDataWriteFftOptimizationDataWriteFftOptimizationData. If the stored data have been determined for the image sizes to be used in the application, a call to optimize_fft_speedoptimize_fft_speedOptimizeFftSpeedOptimizeFftSpeedOptimizeFftSpeed is unnecessary. It should be noted that the data should only be used on the same machine on which they were determined with optimize_fft_speedoptimize_fft_speedOptimizeFftSpeedOptimizeFftSpeedOptimizeFftSpeed. If this is not observed the runtimes will not be optimal. Furthermore, it should be noted that optimization data that were created with Standard HALCON cannot be used with Parallel HALCON and vice versa.

read_fft_optimization_dataread_fft_optimization_dataReadFftOptimizationDataReadFftOptimizationDataReadFftOptimizationData influences the runtime of the following operators, which use the FFT: fft_genericfft_genericFftGenericFftGenericFftGeneric, fft_imagefft_imageFftImageFftImageFftImage, fft_image_invfft_image_invFftImageInvFftImageInvFftImageInv, sfs_pentlandsfs_pentlandSfsPentlandSfsPentlandSfsPentland, sfs_mod_lrsfs_mod_lrSfsModLrSfsModLrSfsModLr, sfs_orig_lrsfs_orig_lrSfsOrigLrSfsOrigLrSfsOrigLrwiener_filterwiener_filterWienerFilterWienerFilterWienerFilter.

Execution Information

Parameters

FileNameFileNameFileNameFileNamefileName (input_control)  filename.read HTupleHTupleHtuple (string) (string) (HString) (char*)

File name of the optimization data.

Default value: 'fft_opt.dat' "fft_opt.dat" "fft_opt.dat" "fft_opt.dat" "fft_opt.dat"

Result

read_fft_optimization_dataread_fft_optimization_dataReadFftOptimizationDataReadFftOptimizationDataReadFftOptimizationData returns 2 (H_MSG_TRUE) if all parameters are correct. If necessary, an exception is raised.

Possible Successors

fft_genericfft_genericFftGenericFftGenericFftGeneric, fft_imagefft_imageFftImageFftImageFftImage, fft_image_invfft_image_invFftImageInvFftImageInvFftImageInv, rft_genericrft_genericRftGenericRftGenericRftGeneric, wiener_filterwiener_filterWienerFilterWienerFilterWienerFilter, wiener_filter_niwiener_filter_niWienerFilterNiWienerFilterNiWienerFilterNi, photometric_stereophotometric_stereoPhotometricStereoPhotometricStereoPhotometricStereo, sfs_pentlandsfs_pentlandSfsPentlandSfsPentlandSfsPentland, sfs_mod_lrsfs_mod_lrSfsModLrSfsModLrSfsModLr, sfs_orig_lrsfs_orig_lrSfsOrigLrSfsOrigLrSfsOrigLr

Alternatives

optimize_fft_speedoptimize_fft_speedOptimizeFftSpeedOptimizeFftSpeedOptimizeFftSpeed, optimize_rft_speedoptimize_rft_speedOptimizeRftSpeedOptimizeRftSpeedOptimizeRftSpeed

See also

write_fft_optimization_datawrite_fft_optimization_dataWriteFftOptimizationDataWriteFftOptimizationDataWriteFftOptimizationData

Module

Foundation