Saving an image that's been rotated

Question

I'm using Croppic to crop, rotate and save an image. But I'm not sure how to save the image if it's been rotated. When I save the image, after I rotate 90 degs, it still gets saved in it's original orientation. I suspect it's how I'm saving the image, but not sure.

Here are my methods for saving the cropped/rotated image. I'm guessing that it's how I'm saving the image because I can see on my file folder that the cropped image isn't rotated correctly, but the cropping has been applied.

[HttpPost]
public string CroppedImage(string imgUrl, int imgInitW, int imgInitH, double imgW, double imgH, int imgY1, int imgX1, int cropH, int cropW)
{
    var originalFilePath = Server.MapPath(imgUrl);
    var fileName = CropImage(originalFilePath, imgInitW, imgInitH, (int)imgW, (int)imgH, imgY1, imgX1, cropH, cropW);
    var result = new
    {
        status = "success",
        url = "../Cropped/" + fileName
    };

    return JsonConvert.SerializeObject(result);
}

private string CropImage(string originalFilePath, int origW, int origH, int targetW, int targetH, int cropStartY, int cropStartX, int cropW, int cropH)
{
    var originalImage = Image.FromFile(originalFilePath);

    var resizedOriginalImage = new Bitmap(originalImage, targetW, targetH);
    var targetImage = new Bitmap(cropW, cropH);

    using (var g = Graphics.FromImage(targetImage))
    {
        g.DrawImage(resizedOriginalImage, new Rectangle(0, 0, cropW, cropH), new Rectangle(cropStartX, cropStartY, cropW, cropH), GraphicsUnit.Pixel);
    }
    string fileName = Path.GetFileName(originalFilePath);
    var folder = Server.MapPath("~/Cropped");
    string croppedPath = Path.Combine(folder, fileName);
    targetImage.Save(croppedPath);

    return fileName;

}

The controller inputs are defined here and I see that imgX1 and imgY1 have different values if I rotate. I just don't know how to save it correctly in C#.

Answer 1

There's a rotation parameter posted to the server when you crop the image that's missing from Croppic docs. That will tell you how many degrees the image has been rotated.

[HttpPost]
public string CroppedImage(string imgUrl, int imgInitW, int imgInitH, 
   double imgW, double imgH, int imgY1, int imgX1, 
   int cropH, int cropW, int rotation)
{

}

And, you can use the code in this answer to rotate the image.

Answer 2

  private void listImage_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            try
            {
                pictureBox1.Image.RotateFlip(RotateFlipType.Rotate90FlipNone); 
                pictureBox1.Refresh();
                btnGuardarFoto.Visible = true;                
            }
            catch (Exception ex)
            {
                oCOM.MsgError("Error en listImage_MouseDoubleClick() " + ex.Message);
            }
        }