内容：第4章 图像增强（对比度增强、灰度变换法、直方图修整法、图像平滑、图像锐化、伪彩色和假彩色增强）；第5章 图像复原（逆滤波复原、维纳滤波方法）；第6章 图像处理中的正交变换（傅立叶变换、离散余弦变换（DCT）、沃尔什变换、基于特征向量的变换、霍特林（Hotelling）变换、SVD变换、小波变换、Mallat算法）；第7章 图像压缩编码（霍夫曼（Huffman）编码、算术编码、游程编码（Run Length Coding）、位平面编码、预测编码、DPCM、-Content: Chapter 4 image enhancement (contrast enhancement, gray-scale transformation method, histogram trimming method, image smoothing, image sharpening, pseudo-color and false color enhancement)　Chapter 5 Image Restoration (inverse filter restoration, Wiener filter method )　Chapter 6 Image Processing orthogonal transformation (Fourier transform, discrete cosine transform (DCT), Walsh transform, eigenvector-based transformation, Hotelling (Hotelling) transform, SVD transform, wavelet transform, Mallat algorithm)　Chapter 7 Image Coding (Hoffman (Huffman) coding, arithmetic coding, RLE (Run Length Coding), bit-plane coding, predictive coding, DPCM,