WPF：查找图像中的所有封闭区域（C＃甚至VB）

本文介绍了WPF：查找图像中的所有封闭区域（C＃甚至VB）的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在为有身体限制的儿童制作一本简单的着色书。 教师将能够在仅由封闭区域组成的程序中插入图片。 然后我需要分析图像并找到所有封闭区域（孩子能够着色的地方）。 我需要这样做，因为所有可以涂漆的区域会一个接一个地发光。 我想我可以通过填充来实现这一点，所以我需要在每个封闭区域内有一个点（X，Y坐标）。

I am working on a simple coloring book for children with physical limitations. Teachers will be able to insert a picture in the program composed of only closed areas. I then need to analyze the image and find all closed areas (the places the child will be able to color). I need to do this because all areas that can be painted will glow up one after the other. I think I can accomplish this with a floodfill so I need a point (X,Y coordinate) inside every closed area.

任何人都做过这样的事情？ 一些提示或源代码可用吗？

Anyone ever did something like this? Some tips or source code available?

非常感谢！

推荐答案

我对WPF本身没有多少经验，但我可能会使用这样的算法：

I don't have much experience with WPF per se, but I would probably use an algorithm like this:

首先，我假设图像是严格的单色。也就是说，只有纯黑色（线条）和纯白色（可着色区域）像素。

First, I am assuming the image is strictly monochrome. That is, there are only pure black (line) and pure white (colourable area) pixels.

将图像转换为真彩色

检查左上角的像素。

如果此像素为白色，请使用新的唯一颜色进行填充

向右移动一个像素（如果超出范围，向下移动一个，一直向左移动）

转到3

Convert the image to true-colour

Examine the Top-Left pixel.

If this pixel is white, do a flood fill with a new unique colour

Move one-pixel to the right (if out of bounds, move down one and all the way to the left)

Go to 3

现在，图像中的每个区域都有不同的颜色。

Now, every area in the image has a different colour.