C# crop image from center

Question

I am developing application using .NET(4.5) MVC(4.0) C#(5.0). i want to generate image thumbnail from image that i already have. Now requirement is like it should generate t

Answer 1

public 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(maxWidth, maxWidth);
    using (var graphics = Graphics.FromImage(newImage))
    {
        // Calculate x and y which center the image
        int y = (maxHeight/2) - newHeight / 2;
        int x = (maxWidth / 2) - newWidth / 2;

        // Draw image on x and y with newWidth and newHeight
        graphics.DrawImage(image, x, y, newWidth, newHeight);
    }

    return newImage;
}