fft_image_invfft_image_invFftImageInvFftImageInvfft_image_inv (算子名称)

名称

fft_image_invfft_image_invFftImageInvFftImageInvfft_image_inv — Compute the inverse fast Fourier transform of an image.

参数签名

描述

fft_image_invfft_image_invFftImageInvFftImageInvFftImageInvfft_image_inv calculates the inverse Fourier transform of the input image (ImageImageImageImageimageimage), i.e., it transforms the image back into the spatial domain. This corresponds to the call fft_generic(Image, ImageFFT, 'from_freq', 1, 'sqrt', 'dc_center', 'byte')fft_generic(Image, ImageFFT, "from_freq", 1, "sqrt", "dc_center", "byte")FftGeneric(Image, ImageFFT, "from_freq", 1, "sqrt", "dc_center", "byte")FftGeneric(Image, ImageFFT, "from_freq", 1, "sqrt", "dc_center", "byte")FftGeneric(Image, ImageFFT, "from_freq", 1, "sqrt", "dc_center", "byte")fft_generic(Image, ImageFFT, "from_freq", 1, "sqrt", "dc_center", "byte").

注意

The transformation is always performed for the entire image, i.e., the domain of the image is ignored.

运行信息

• 多线程类型:可重入(与非独占操作符并行运行)。
• 多线程作用域:全局(可以从任何线程调用)。
• 在元组级别自动并行化。
• 在图像通道级别自动并行化。
• Automatically parallelized on internal data level.

参数表

结果

fft_image_invfft_image_invFftImageInvFftImageInvFftImageInvfft_image_inv returns 2 ( H_MSG_TRUE) if the input image is of correct type. If the input is empty the behavior can be set via set_system(::'no_object_result',<Result>:)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>). If necessary, an exception is raised.

可能的前置算子

convol_fftconvol_fftConvolFftConvolFftConvolFftconvol_fft, convol_gaborconvol_gaborConvolGaborConvolGaborConvolGaborconvol_gabor, fft_imagefft_imageFftImageFftImageFftImagefft_image, optimize_fft_speedoptimize_fft_speedOptimizeFftSpeedOptimizeFftSpeedOptimizeFftSpeedoptimize_fft_speed, read_fft_optimization_dataread_fft_optimization_dataReadFftOptimizationDataReadFftOptimizationDataReadFftOptimizationDataread_fft_optimization_data

可能的后置算子

convert_image_typeconvert_image_typeConvertImageTypeConvertImageTypeConvertImageTypeconvert_image_type, energy_gaborenergy_gaborEnergyGaborEnergyGaborEnergyGaborenergy_gabor

可替代算子

fft_genericfft_genericFftGenericFftGenericFftGenericfft_generic, rft_genericrft_genericRftGenericRftGenericRftGenericrft_generic

参考其它

fft_imagefft_imageFftImageFftImageFftImagefft_image, fft_genericfft_genericFftGenericFftGenericFftGenericfft_generic, energy_gaborenergy_gaborEnergyGaborEnergyGaborEnergyGaborenergy_gabor

模块

Foundation

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