调整文件夹中所有图像的大小

本文关键字:图像 文件夹 调整 | 更新日期: 2023-09-27 18:18:18

我正试图将同一文件夹中找到的所有图像调整为相同的大小。这里是我的代码,但它不工作。请提供一点帮助(忽略"CombineImages(files);"这是程序的另一种工作方式)

    private void cmdCombine_Click(object sender, EventArgs e)
    {
        //Change the path to location where your images are stored.
        DirectoryInfo directory = new DirectoryInfo(@"C:'Users'Elder Zollinger'Desktop'Images");
        if (directory != null)
        {
            FileInfo[] files = directory.GetFiles();
            ResizeImages(files);
            CombineImages(files);
        }
    private void ResizeImages(FileInfo[] files)
    {
        foreach (FileInfo file in files)
        {
            Image img = Image.FromFile(file.FullName);
            var newImage = ScaleImage(img, 200, 400);
        }   
    public static Image ScaleImage(Image image, int maxWidth, int maxHeight)
    {
        var ratioX = (double)maxWidth / image.Width;
        var ratioY = (double)maxHeight / image.Height;
        var ratio = Math.Min(ratioX, ratioY);
        var newWidth = (int)(image.Width * ratio);
        var newHeight = (int)(image.Height * ratio);
        var newImage = new Bitmap(newWidth, newHeight);
        Graphics.FromImage(newImage).DrawImage(image, 0, 0, newWidth, newHeight);
        return newImage;
    }

调整文件夹中所有图像的大小

您没有保存调整大小的图像。试试这个:

private void ResizeImages(FileInfo[] files)
{
    foreach (FileInfo file in files)
    {
        Image img = Image.FromFile(file.FullName);
        var newImage = ScaleImage(img, 200, 400);
        img.Dispose();
        newImage.Save(file.FullName);
    }   
}

您需要在覆盖原始图像之前处理它。