Secondly, for the image edge detection, methods including the gradient method, the sharp-processing method, and the Hough transformation were used, and the contour tracing was also conducted.
边缘检测处理部分采用了梯度处理法、锐化处理法、哈夫变换处理法，并对图像作轮廓跟踪处理。
The system used image manipulation method to measure geometrical parameters, including binary image production, edge detection, contour hunting and the thread geometrical parameter calculation.
探讨了利用数字图像处理技术进行锥螺纹几何参数测量的方法，并给出了锥螺纹部分的尺寸测量结果。
The code of the image filter processing, the code shows the three filter matrix, including the smoothing (low pass filter), image edge detection (high-pass filter) and so on.
该代码实现了图像的滤波处理，这段代码给出了三种滤波矩阵，包括图像平滑(低通滤波器)、图像边缘提取(高通滤波器)等。
It firstly extracts several target candidates through the preprocessing including median filtering, edge extraction, sea-sky line detection and morphological filtering of infrared sequence images.
通过对红外序列图像进行中值滤波、边缘提取、海天线检测和形态滤波等预处理，提取出若干个候选目标。
It firstly extracts several target candidates through the preprocessing including median filtering, edge extraction, sea-sky line detection and morphological filtering of infrared sequence images.
通过对红外序列图像进行中值滤波、边缘提取、海天线检测和形态滤波等预处理，提取出若干个候选目标。
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