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image_processing_quantize
- 本文件利用matlab对图像进行scalar quantization。程序分别对图像进行了8，16，32，64level量化，同时计算出了不同level的MSE/SNR/PSNR 。-This matlab file realize the scalar quantization on the image. The program quantizes the image with 8, 16, 32, 64 levels respectively, and then compute the v
D
- 灰度图像的量化和直方图均衡化直接调用函数。量化是指将像素灰度转换成离散的整数值的过程。量化等级越多，所得图像层次越丰富，灰度分辨率高，图像质量好，但数据量大。-Write MATLAB functions to quantize grayscale image with given quantization step Q. Process the given test images “Lena” with quantization steps Q=2, 4, 8 16, 32, 64, 1
Fourier-transform-image
- 编写二维傅立叶变换的C语言程序及相应的显示程序 建立输入图象，在64*64的黑色图象矩阵的中心建立16*16的白色矩形图象点阵，形成图象文件（共4096字节） 对输入图象进行变换，将原始图象及变换图象都显示于屏幕上-The preparation of two-dimensional Fourier transform of C language program and the corresponding display program establish the input image, t
Reducing-the-Number-of-Gray-Levels
- 用matlab实现改变图像灰度值，输出依次为原图像（灰度值256），128,64,32,16,8,4,2-Reducing the Number of Gray Levels in an Image (a) Write a computer program capable of reducing the number of gray levels in an image 256 to 2, in integer（整数） powers of 2. The desired number
lena-graychazhi
- 对lena图像分别进行4倍和16倍减采样，将256级的lena图像转换成128级灰度图像，64级灰度图像，32级灰度图像-Gray image of lena were reduced four times and 16 times sampling, 256 of 128 lena image is converted into a grayscale image, the 64-level grayscale images, 32 gray-scale image