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二维机器视觉主要用于四个方面:引导、检查、测量和识别。数字相机通过二维视觉捕捉物体的图像。从该图像中,通过解释强度或对比度的变化生成一个二维测绘图。二维视觉可以通过两种方式之一实现:区域扫描或线扫描。区域扫描对整个检查区域单一完整地进行拍照,而线扫描则是逐行编制二维图像。二维视觉在高对比度的情况下或物体的纹理或颜色对解决方案至关重要时特别有用。
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