用鼠标截取图像并保存(一)后续:
此次试验主要是相对上一个实验,利用每个字符切割的初始位置不一样,改变切割的起点达到切割每个字符的目的。代码的改变主要是初始坐标和实时坐标的变化,即如下所示:
{
dst = src(Rect(min(cur_pt.x, pre_pt.x), min(cur_pt.y, pre_pt.y), width, height));
namedWindow("dst")
imshow("dst", dst);
dst1 = src(Rect(min(cur_pt.x, pre_pt.x+58), min(cur_pt.y, pre_pt.y), width+15, height));
namedWindow("dst1");
imshow("dst1", dst1);
dst2 = src(Rect(min(cur_pt.x+100 , pre_pt.x+158), min(cur_pt.y, pre_pt.y), width, height));
namedWindow("dst2");
imshow("dst2", dst2);
dst3 = src(Rect(min(cur_pt.x +158, pre_pt.x+223 ), min(cur_pt.y, pre_pt.y), width, height));
namedWindow("dst3");
imshow("dst3", dst3);
dst4 = src(Rect(min(cur_pt.x +223, pre_pt.x+304 ), min(cur_pt.y, pre_pt.y), width, height));
namedWindow("dst4");
imshow("dst4", dst4);
dst5= src(Rect(min(cur_pt.x+300, pre_pt.x +350), min(cur_pt.y, pre_pt.y), width, height));
namedWindow("dst5");
imshow("dst5",dst5);
dst6= src(Rect(min(cur_pt.x + 360, pre_pt.x + 410), min(cur_pt.y, pre_pt.y), width, height));
namedWindow("dst6");
imshow("dst6", dst6);
}
通过鼠标找到所需的坐标点,计算出在X轴上初始坐标和实时坐标的变化,当鼠标切割第一个字符后,其余字符会同时被切割并显示出来,运行结果如下: