This system is still based on The Standard of Estimating Skeletal Maturity for Chinese (Method of CHN Scoring), uses the digitized' image substitution tradion X light film.
本系统仍以中国人骨发育评价标准（CHN积分法）为依据，采用数字化成像替代传统的X光胶片。
To effect the substitution, the tool amends a running kernel image with the new functions' object code and injects a jump at the head of each existing function to call its new counterpart.
为了让替换生效，工具在正在运行的内核映像中添加新的函数对象代码，然后在每个现有函数的开头注入一个跳转，从而调用函数的新实现。
The watermark is compressed and the watermark is embedded in part of the pixels of the original image, then the watermark-hiding algorithm based on information substitution can be realized.
首先对于水印图像进行压缩，然后在原图像的部分象素点中嵌入水印，从而实现基于信息替代的水印隐藏算法。
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