If the ID making the register API call does not have at least READ access to this class, the register call will not be accepted.
如果进行Register API调用的ID没有最起码的针对此类的READ访问，那么注册调用将不被接受。
DCT and RLE will be combined to achieve the lossy compression of color images, and can be accepted within the framework of the loss of access relatively good compression ratio.
将DCT和RLE相结合能够实现彩色图像的有损压缩，并且能够在可以接受的损失范围内，获取比较好的压缩比。
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