There was no difference of the average gray scale between the sham operation group and normal control.
假手术组和正常对照组灰度值比较无统计学差别。
That is, there exists an optimal threshold, which lies in the average gray of the joint transform power spectrum by computer simulation.
并通过计算机模拟，确定出该最佳阈值位于联合变换功率谱的平均灰度值附近。
Since illumination condition effects recognition ratio for human face greatly, while average gray value of every face image is different, we must standardize gray value of face images.
由于人脸识别率受照明条件的影响较大，而各个人脸图像的平均灰度值各不相同，所以必须对人脸图像进行灰度归一化。
In essence, the algorithm is the extension of those algorithms which segment object in a textured background by assuming the average gray levels of the object and the background are different.
这种算法本质上是从灰度分布来分割物体的算法的推广，它不仅适用于背景纹理灰度与物体表面灰度不同的图象，而且适用于背景平均灰度与物体表面平均灰度相同的图象。
I know he's average in appearance, wears a gray suit, is graying at the temples, and has a common face.
我只知道他相貌平平，身穿灰色外套，太阳穴发灰，有一张大众脸。
In the common methods, the algorithm based on the average of region gray makes image blur, and the algorithm based on spline interpolation wastes time.
在常用的方法中，基于区域灰度平均的算法使图像模糊，而基于样条插值的算法计算耗时。
Conclusion the brain development in infants can be evaluated with the average values of gray density by echoencephalography and medical image analysis system.
结论可通过脑回声平均灰度值测定，作为临床评价新生儿脑发育的指标，以减少因人为因素导致分析的主观性。
The average nucleus nuclei gray scale of high irradiation dose was lower than that of low irradiation dose (P<0.05 ) .
高放射剂量组平均细胞核灰度值低于低放射剂量组（P＜0.05）。
Meanwhile, through the privacy key analysis, the histogram analysis, the information entropy, the average value of gray change and the relevant analysis, the security of this algorithm is very high.
同时通过具体的密钥空间分析、直方图分析、信息熵、灰度变化平均值和相关性分析显示，该算法具有很高的安全性能。
If the image still exists in clumps of the noise, the noise replace the gray average of the three adjacent signal points.
如果图像中仍然存在人的噪声团块，则噪声用相邻的三个信号点的灰度均值替换。
The first stage is include image's gray numbers on average, image enhancing by average filter, part enhancing and enhancing by homeostasis filter.
其中图像预处理包括直方图均衡化、中值滤波、局部增强、同态滤波增强等工序；
On average, fraud companies in this sample had larger boards, a higher percentage of inside directors on the board, and a higher percentage of gray directors.
平均来说，诈骗公司在这样有较大的板，较高比率的内部董事组成董事会，将较高比率的灰色董事。
On average, fraud companies in this sample had larger boards, a higher percentage of inside directors on the board, and a higher percentage of gray directors.
平均来说，诈骗公司在这样有较大的板，较高比率的内部董事组成董事会，将较高比率的灰色董事。
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