阅读和处理图像(OpenCV/C ）

Reading and processing images (opencv/c++)

本文关键字：OpenCV 图像 处理      更新时间：2023-10-16

我的项目正在识别图像的面孔。图像具有相同的名称，并偶尔更改
因此，我想每次更改
时加载和处理图像我该如何修改：

    while (image==NULL) {
    image = cvLoadImage("ayman.jpg", 1);
}
cout << endl << "My image was finally loaded!";

对不起我的英语

好吧，假设您的图像在更改（随机）时的图像有所不同。我们如何检测到它是另一个图像，与上一张图像不同？

我们将提取图像的3个功能，它是：红色通道，绿色通道和蓝色通道的平均值（是向量）。因此，如果图像相同，则3均值是相同的，但是如果它不同，则图像已更改。

所以认为我们处于无限循环（您的while）。

while(true) {
    // we are going to say here if the image has changed or not
}

我们还可以吗？这是代码：

    image = cvLoadImage("ayman.jpg", 1);
    Scalar meanOfImage = mean(image);
    while (true) {
        Scalar meanAtThisMoment = mean(image);
        // This are the three features (it's in real one, but one vector of 3).
        // We are going to compare the three to be more clear.
        if (meanAtThisMoment[0] == meanOfImage[0]
            &&
            meanAtThisMoment[1] == meanOfImage[1]
            &&
            meanAtThisMoment[2] == meanOfImage[2]) {
            cout << endl << "The image hasn't been changed yet.";
            image = cvLoadImage("ayman.jpg", 1); // added!! forgot this, sorry
        } else {
            cout << endl << "The image has been changed!!!";
            // and now we set the meanOfImage (the main mean) of the new image to compare with the future images.
            meanOfImage = meanAtThisMoment;

        }
    }
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