energy_gaborenergy_gaborEnergyGaborEnergyGaborenergy_gabor（算子）

名称

energy_gaborenergy_gaborEnergyGaborEnergyGaborenergy_gabor — 计算双通道图像的能量。

签名

energy_gabor(ImageGabor, ImageHilbert : Energy : : )

描述

energy_gaborenergy_gaborEnergyGaborEnergyGaborEnergyGaborenergy_gabor calculates the local contrast (EnergyEnergyEnergyEnergyenergyenergy) of the two input images. The energy of the resulting image is then defined as Often the calculation of the energy is preceded by the convolution of an image with a Gabor filter and the Hilbert transform of the Gabor filter (see convol_gaborconvol_gaborConvolGaborConvolGaborConvolGaborconvol_gabor). In this case, the first channel of the image passed to energy_gaborenergy_gaborEnergyGaborEnergyGaborEnergyGaborenergy_gabor is the Gabor-filtered image, transformed back into the spatial domain (see fft_image_invfft_image_invFftImageInvFftImageInvFftImageInvfft_image_inv), and the second channel the result of the convolution with the Hilbert transform, also transformed back into the spatial domain. The local energy is a measure for the local contrast of structures (e.g., edges and lines) in the image.

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。
在域级别上自动并行化。

参数

ImageGaborImageGaborImageGaborImageGaborimageGaborimage_gabor (输入对象) (multichannel-)image(-array) → object (byte / real)

1st channel of input image (usually: Gabor image).

ImageHilbertImageHilbertImageHilbertImageHilbertimageHilbertimage_hilbert (输入对象) (multichannel-)image(-array) → object (byte / real)

2nd channel of input image (usually: Hilbert image).

EnergyEnergyEnergyEnergyenergyenergy (输出对象) image(-array) → object (real)

Image containing the local energy.

示例（C）

fft_image(Image,&FFT);
gen_gabor(&Filter,1.4,0.4,1.0,1.5,512);
convol_gabor(FFT,Filter,&Gabor,&Hilbert);
fft_image_inv(Gabor,&GaborInv);
fft_image_inv(Hilbert,&HilbertInv);
energy_gabor(GaborInv,HilbertInv,&Energy);

结果

energy_gaborenergy_gaborEnergyGaborEnergyGaborEnergyGaborenergy_gabor 在所有参数正确时返回 2 ( H_MSG_TRUE )。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

gen_gaborgen_gaborGenGaborGenGaborGenGaborgen_gabor, convol_gaborconvol_gaborConvolGaborConvolGaborConvolGaborconvol_gabor, fft_image_invfft_image_invFftImageInvFftImageInvFftImageInvfft_image_inv

模块

基础

算子