fft_image_invfft_image_invFftImageInvFftImageInvfft_image_inv（算子）
名称
fft_image_invfft_image_invFftImageInvFftImageInvfft_image_inv — 计算图像的快速傅里叶逆变换。
签名
def fft_image_inv(image: HObject) -> HObject
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.
执行信息
- 多线程类型：可重入（与非独占算子并行运行）。
- 多线程作用域：全局（可从任何线程调用）。
- 在元组级别上自动并行化。
- 在通道级别上自动并行化。
- 在内部数据级别上自动并行化。
参数
ImageImageImageImageimageimage (输入对象) (multichannel-)image(-array) → objectHImageHObjectHImageHobject (complex)
输入图像。
ImageFFTInvImageFFTInvImageFFTInvImageFFTInvimageFFTInvimage_fftinv (输出对象) image(-array) → objectHImageHObjectHImageHobject * (byte)
Inverse-Fourier-transformed image.
结果
fft_image_invfft_image_invFftImageInvFftImageInvFftImageInvfft_image_inv returns 2 (
H_MSG_TRUE)
if the input image is of correct
type.当输入为空时，可设置行为通过算子 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>)。如有必要，则抛出异常。
可能的前趋
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
可能的后继
convert_image_typeconvert_image_typeConvertImageTypeConvertImageTypeConvertImageTypeconvert_image_type,
energy_gaborenergy_gaborEnergyGaborEnergyGaborEnergyGaborenergy_gabor
替代
fft_genericfft_genericFftGenericFftGenericFftGenericfft_generic,
rft_genericrft_genericRftGenericRftGenericRftGenericrft_generic
另见
fft_imagefft_imageFftImageFftImageFftImagefft_image,
fft_genericfft_genericFftGenericFftGenericFftGenericfft_generic,
energy_gaborenergy_gaborEnergyGaborEnergyGaborEnergyGaborenergy_gabor
模块
基础