BaseFFTProcessor.py 文件源码

def LaplaceFFTDemo(self):
        origfftimg = self.PrepareFFT()
        fftimg = origfftimg.copy()
        sz = fftimg.shape
        center = np.mat(fftimg.shape) / 2.0
        for i in xrange(0, 512):
            for j in xrange(0, 512):
                #pass
                #print -(np.float64(i - center[0, 0]) ** 2.0 + np.float64(j - center[0, 1]) ** 2.0)
                fftimg[i, j] *= - 0.00001* (np.float64(i - 256) ** 2.0 + np.float64(j - 256) ** 2.0)
        ifft = self.GetIFFT(fftimg)
        #plt.imshow(np.real(fftimg))
        #plt.show()
        # cv2.namedWindow("fft1")
        # cv2.imshow("fft1", np.real(origfftimg))
        cv2.namedWindow("fft")
        cv2.imshow("fft", np.real(fftimg))
        # cv2.imshow("ifft", np.uint8(ifft))
        cv2.namedWindow("ifft")
        cv2.imshow("ifft", ifft)
        cv2.waitKey(0)