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If we know some properties of the image, than thresholding process only needs to ensure this property is satisfied.
In a printed text image, if we know the ratio of area between the sheet and character, then we can choose satisfied threshold value
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:自准直仪是比较常用的测角仪器,其原理是检测激光形成的图像光斑的中心之间的距离,通过 ) 个中
心的横纵坐标差来计算物体偏离的角度
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利用迭代阈值和图像分割等方法将光斑图像进行预处理,然后将得到
的图像分别用重心法、圆拟合法和匹配法进行中心定位,并最终进行偏离角度的测定
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文中介绍了所使用的几
种方法,并进行了仿真比较,结果表明,圆拟合法更有优势
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-: Is more commonly used since the collimator angle m
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读取D盘特定区域的图片并将其灰度化,去噪,最后进行迭代阈值分割。-Pictures and read the specific area of the D drive its graying, denoising the final iterative threshold segmentation.
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基于图像处理与机器视觉的车辆轮对踏面检测技术,主要算法有图像类型的转
化、图像反色、中值滤波、LoG(L即lacianofGaussian)锐化算子、基
于迭代法的闽值分割、细线化等,使得提取的轮对图像信息达到了较高的精度
-Based on image processing and machine vision of the vehicle wheel tread detection technology, the main algorithm of image type
An
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这个工程实现了通过迭代阈值法将图像二值化。-The project achieved through the iterative threshold method to image binarization.
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