使用SURF匹配OpenCV \EmguCV中的图像 [英] Use SURF to match images in OpenCV\EmguCV

问题描述

我正在处理此处的源代码。

似乎 indices 变量存储匹配信息，但我不知道信息是如何存储的。

It seems that indices variable stores the match information, but I don't know how the information is stored.

例如，你能告诉我有多少匹配点被找到了吗？哪一点与哪一点匹配？

For example, can you tell me how many matched pair of points are found? Which point matches which point?

推荐答案

看看这一行。

Image<Bgr, Byte> result = Features2DToolbox.DrawMatches(modelImage, modelKeyPoints, observedImage, observedKeyPoints,
        indices, new Bgr(255, 255, 255), new Bgr(255, 255, 255), mask, Features2DToolbox.KeypointDrawType.DEFAULT);

最重要的变量是掩码。该变量具有所有需要的信息。这是阵列。如果此数组上的值等于1，则表示我们有一个公共对。你必须计算在这个数组中出现1的次数。

The most important variable is mask. This variable has all need information. It is array. If value on this array is equal 1 that means that we have a common pair. You have to count how many times appears 1 in this array.

    public int CountHowManyPairsExist( Matrix<byte> mask)
    {
        var matched = mask.ManagedArray;
        var list = matched.OfType<byte>().ToList();
        var count = list.Count(a => a.Equals(1));
        return count;
    }

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