文件列表:

Code (0, 2019-10-05)
Code\main.m (2180, 2019-10-05)
Code\psnr.m (239, 2019-09-21)
Code\resize.m (977, 2019-09-21)
Code\rgbToHsi.m (477, 2019-09-29)
Code\test_psnr.m (265, 2019-09-21)
Code\test_toRGB.m (409, 2019-09-29)
Code\to4bit.m (85, 2019-09-21)

---------------------------------------------------------------------------------------- main.m contains all the codes of Lab1. psnr.m is a function to calculate psnr. resize.m is a function to resize a image(upsample or downsample) rgbToHsi is a function that receives a RGB image and outputs HSI component to4bit is a function that quantizes a greyscale image into a 4-bit greyscale image ---------------------------------------------------------------------------------------- test_psnr is a script to test the psnr function, lenna512GN10.bmp is an image with 10% gaussian noise, lenna512GN20.bmp is an image with 20% gaussian noise, lenna512GN20.bmp is an image with 20% gaussian noise. Those three images are used to compare and calculate the psnr between lenna512.bmp test_toRGB is a script to test a part of codes in main.m that transfers the RGB image into three image component. The file imcolor.jpg is used as input RGB image. ----------------------------------------------------------------------------------------

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