contour of gray level 等灰度值曲线
Gray contour is used to the colony image segmentation.
将灰度等高线运用到菌落图像分割中去。
参考来源 - 基于灰度等高线变化加速度的菌落图像分割研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Simulation results show that this method can greatly reduce dynamic false contour and overcome the shortcoming of insufficient gray levels in pure stretched-out coding display.
仿真结果显示，此法能够良好地抑制动态伪轮廓，并且有助于克服单纯延伸编码显示灰度级不足的缺点。
The original gray level image was changed into the macroscopical drawing information by pre-processing, threshold selection, image bivalency, edge detection and contour extraction and segmentation.
对原始数字图像实施预处理、二值化、轮廓提取及细化等处理后，将图像信息转变成宏观图形信息。
Prior knowledge of the vehicles, such as shadows underneath the vehicles, rich edge information, contour symmetry, gray level symmetry, horizontal line symmetry and etc, is combined.
联合使用车底阴影、边缘信息、轮廓对称、灰度对称、水平线对称等车辆先验知识，提出一种基于特征的车辆检测方法。
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