opencv Mat
时间: 2023-10-04 14:03:27 浏览: 53
在OpenCV中,Mat是一个非常重要的类,它用于表示图像或矩阵数据。可以使用不同的方法来创建Mat对象。其中一种方法是使用构造函数,如Mat img(100,100,CV_8UC3, Scalar(255,255,255)),这会创建一个大小为100x100的3通道图像,像素值为(255,255,255)。另一种方法是使用create()函数,如img.create(100,100, CV_8UC3),这也会创建一个大小为100x100的3通道图像。此外,还可以使用zeros()、eye()和ones()函数来创建全零矩阵、对角为1的对角矩阵和全1矩阵。还可以使用逗号数组的方式来创建对象,如Mat img = (Mat_<double>(2,2) << 0,1,1,0)。这种方式按行填充数据。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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