藏入數位浮水印處理程式 1．本程式所採用之影像格式皆為*.raw之灰階影像。 2．本程式採用的浮水印格式為128×128之灰階影像ccu.raw。 3．本程式所採用的原始影像格式為512×512 之灰階影像Lena.raw。 ,Possession of a digital watermark into the processing program 1. Used in this program are the*. raw format images of gray-scale imag

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

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