如JPG和BMP两类图片可选择8位还是24位，JPG图片还可进一步选择 压缩品质 ( Compression quality )及其是否采用渐进显示(progressive encoding)，对于保存为GIF图片格式，我们可使其背景透明，单击“Transparent Color”可以打开...
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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.
在允许的时候，尽量使用JPG并调整品质设置，以便在可以忍受的图像品质范围内获得更高的压缩比。
When you can, use JPG instead and adjust the quality setting so you can compress the image as much as possible within your desired tolerance for image quality.
实验表明，本算法较好地保持了原始图像的品质，对非几何攻击和有损压缩具有较好的稳健性。
Experimental results show that the algorithm maintains the quality of the original image and is robust to non-geometric attack and loss compression.
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