The clarity of image embeddedwatermark is good.At the same time, it is immune to translation, rotation, scaling, cutting, JPEG loss compression, median filter, and sharping.

• 同时水印对平移、旋转、缩放、剪切几何变换以及JPEG有损压缩、中值滤波、锐化、等常规图像处理手段具有较好的鲁棒性。