LSB-for-QR-Code

GS算法，高斯光束整形成矩形光斑，或者根据自制的图片进行逆推相位(GS algorithm, Gaussian beam shaping)

对所采样的原始图像进行噪声滤波、边缘检测、特征提取、利用多项差值亚像素算法。(the target image is be processed that it is filtered noise, edge detection and character be got.)

给予分水岭的图像分割，包括源代码、测试图、实验报告(Given watershed image segmentation, including source code, test plans, test reports)

说明：  LCD彩色图片转换工具BMP_to_H,可以进行24位色的BMP图片转换(LCD color image conversion tools BMP_to_H)

图像处理中纹理特征提取，全局特征提取，matlab(Texture feature extraction)

一种基于DCT变换的数字水印算法的实现过程,水印为伪随机序列，包括嵌入和提取两个过程。其中textmark.m为攻击实验代码。(DCT-based Digital Watermarking Algorithm Transform realize the process, the watermark for the pseudo-random sequence, including both the process of embedding and extraction. Textmark.m experiment in which the attack code.)

说明：  pca、knn、cnn算法的matlab代码(Matlab code of PCA, KNN and CNN algorithm)

图像盲去卷积复原程序，matlab6.5验证可以运行(image deconvolution )

通过遗传算法选择道路图象分割的最佳阈值,阈值的选择采用最大类间方差的办法,程序运行结果达到相当理想的效果(Through the genetic algorithm to choose the best road image segmentation threshold, the threshold was chosen as the maximum between-cluster variance approach, the program results achieved the desired results rather)

说明：  针对现有方法存在的隐藏容量低、操作不灵活的缺陷，文章提出了一种基于无损压缩的加密图像可逆 信息隐藏算法。(In view of the defects of low hiding capacity and inflexible operation of the existing methods, this paper proposes a reversible information hiding algorithm for encrypted images based on lossless compression.)