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对图像进行二维离散小波变换, 变换级数大于等于3级,然后进行阈值化处理(阈值约为10左右),再统计系数中0的个数（百分比表示）并进行重构, 最后计算重构图像的峰值信噪比(PSNR). (Two-dimensional discrete wavelet transform image transformed series is greater than or equal to 3, and then processing thresholding (threshold of about 10 or so), then statistical coefficient in the number (expressed as a percentage) and to reconstruct the final calculation reconstructed image of the peak signal-to-noise ratio (PSNR).)

基于SURF算法的图像拼接程序，执行效率高于SIFT算法(Executive efficient than SIFT algorithm based on the the SURF algorithm of image stitching procedure)

能实现VFW编程，调用本地视频设备，实现视频捕捉和RGB-YUV颜色空间转换。 (To achieve VFW programming, call the local video equipment, the implementation of video capture and RGB-YUV color space conversion.)

说明：  Pixel design for H-noise cal; imageJ platform ; test done

用MATLAB处理数字图像，对图像进行梯度处理，绘制图像的梯度图。(MATLAB deal with digital image, gradient image processing, rendering the image gradient map.)

先对图片进行灰度处理，然后进行高斯滤波，最后得到边缘特征点。(First deal with gray-scale pictures, and then carry out Gaussian filter, and finally get the edge feature point.)

计算机图形学图像处理学习内容，附带PPT教程里面的代码。(the ppt for Digital Image)

Reversible data hiding in images

基于OTSU算法的图像分割工具，有原汁原味的OTSU和改进，可以作比较 (OTSU algorithm based on image segmentation tool, there is authentic OTSU and improvements can be compared)

harrisconer角点检测，提取焊缝的角点位置信息，进行焊缝的特征识别(harrisconer extractionfeature extraction.The position information of the corner point of the weld is extracted and the characteristics of the weld are identified)