将图像放入轮廓（OpenCV） [英] Put Image in contour (OpenCV)

问题描述

我教OpenCV，我想写一个小测试应用程序。有一个问题。
你建议用什么算法来填充具有图像的轮廓（接近矩形）？

I teach OpenCV, and I want to write a small test app. And have a question. What algorithm would you advise to fill the contour (close to a rectangle) with image?

非常感谢！

推荐答案

假设你知道矩形的位置，你可以简单地设置一个ROI（感兴趣区域），并对该区域进行一些处理灰度转换），或者甚至将另一图像复制到该位置。我已经演示了如何设置ROI并在该区域上执行一些处理。

Assuming you know the location of the rectangle you would like to fill, you could simply set a ROI (region of interest) and perform some processing on that region (maybe a grayscale conversion), or even copy another image to that location. I've already demonstrated how to set a ROI and perform some processing on that area.

如果您要添加2张图片，建议您检查官方教程，此信息和此演示：魔法发生在 cvSetImageROI（）和 cvAddWeighted（）。

If you want to add 2 images I suggest you check the official tutorial, this post, and this demo: the magic happens through cvSetImageROI() and cvAddWeighted().

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