The algorithm of zero-order Gaussian filtering for an open profile (GFO) was used to correct the edge of the filtered image.
并且利用零阶开环高斯滤波算法，对低通滤波图像的边缘进行了修正。
2
The elimination of the zero-order diffraction and conjugate image in the digital holography is the key factor influencing whether or not the holography is utilized widely.
数字全息中直透光和共轭像的去除是影响到全息能否得到更广泛应用的关键因素。
3
In order to improve performance of resistance to the geometrical attack while keep invisible, a zero-watermark algorithm for digital image based on Fourier-Millin transforming is proposed.