JPEG压缩方法由于其较高的压缩比和理想的压缩效果，是目前应用最广泛的图像压缩方法-JPEG compression method because of its higher compression ratio and ideal compression effect, is currently the most widely used method of image compression

基于dct变换,能实现数字水印嵌入与提取-Based on the DCT transform, to achieve the digital watermark embedding and extraction

基于matlab做的数字水印，文件包括源代码及原图像和加入水印后的图像，经过测试，能有效抗攻击-Matlab-based digital watermarking so that the document includes the source code and the original image and adding a watermark image, tested and effective anti-attack

dct数字水印技术 水印编程 嵌入 提取 检测-dct digital watermarking technology programming embedded watermark extraction detection