多聚焦图像融合的算法较多，主要由基于空间域和基于频率域的图像融合法组成。
There are many multi-focus image fusion algorithms, mainly consisted of the spatial area based and the frequency area based algorithms.
分数傅里叶变换同时包含了空间域和空间频率域信息，分数相关也可以用于光学图样识别。
The fractional Fourier transform contains the spatial information and the spatial-frequency information simultaneously. The fractional correlation can be used to optical pattern recognition too.
本文利用一个适应于表达和处理彩色医学内窥镜图像的颜色空间，分别从空间域和频率域两个方面讨论了该类图像的增强处理方法。
Characteristics of medical endoscopic image were analysed, and a new color space suit to express and process this kind of image were derived from RGB color system.
这种算法是采用了均值量化的方法，把数字水印嵌入图像的离散小波域，可以检测在空间域和频率域的图像失真。
The watermark was embedded in the wavelet domain using the mean quantization method. This method can be used to detect the distortion both in spatial and frequency domain.
小波由一族小波基函数构成，它可以描述信号时间(空间)和频率(尺度)域的局部特性。
By the family of wavelet basis function of wavelet Composition, it can describe the signal time (space) and frequency (scale) domain of the local characteristics.
当在频率-空间域进行计算时，相对于纯粹的时间-空间域有限差分算法有计算效率高、成像方便的优点。
Contrasted with the methods in time space domain, this one has high computation efficiency and is prone to image, because all its computation is in frequency space domain.
设计了空间域和频率域加密算法。
Encryption algorithms in spatial domain and frequency domain are proposed.
数字图像平滑处理可以在空间域或频率域中进行。
It can be accomplished in spatial domain and frequency domain. This chapter presents the ways of the smoothing of digital image.
这两种方法各有特点：频率域法的鲁棒性强，而空间域方法相对精确度更高。
Both types have their own advantages: frequency domain methods have strong robustness, while spatial domain methods have higher accuracy.
采用连分式近似，可以得到空间频率域的有限差分深度偏移方程。
The finite difference depth migration equation in space-frequency domain can be derived when the radical expression is approximated by continued fraction.
传统的图象补偿方法基本上可分为两类，即空间域法和频率域法。
Traditional image compensation methods could mainly divided into two kinds, i. e. space range method and frequency range method.
传统的图象补偿方法基本上可分为两类，即空间域法和频率域法。
Traditional image compensation methods could mainly divided into two kinds, i. e. space range method and frequency range method.
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