实验结果显示，所提的方法能有效改善数字水印技术中图像品质与水印鲁棒性相互制衡的问题。
Simulation results show that the proposed method may improve the PSNR for embedding the visible watermark and enhance the robustness of the invisible watermark.
公开了使得能够改善在灰度级转换后的图像的视觉品质的图像处理装置、图像处理方法和程序。
An image processing device enabling improvement of the visual quality of an image after gradation conversion, an image processing method, and program are disclosed.
通过实验，该算法既能保持原有零树算法良好的压缩品质，而且也改善了图像的视觉质量。
By the tests, the improved algorithm not only bears the effective compression performance of the original zero tree algorithm, but also improves the visual quality of image.
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