public void GetImage(string horizontalFlip = "", string verticalFlip = "",
string rotateLeft = "", string rotateRight = "")
{
var imagePath = Server.MapPath("~/images/bunny-peanuts.jpg");
var image = new WebImage(imagePath);
if (!string.IsNullOrWhiteSpace(verticalFlip))
{
image = image.FlipVertical();
}
if (!string.IsNullOrWhiteSpace(horizontalFlip))
{
image = image.FlipHorizontal();
}
if (!string.IsNullOrWhiteSpace(rotateLeft))
{
image = image.RotateLeft();
}
if (!string.IsNullOrWhiteSpace(rotateRight))
{
image = image.RotateRight();
}
image.Write();
}
public void RotateRightReturnsRotatedImage()
{
WebImage image = new WebImage(_PngImageBytes);
image.RotateRight();
Assert.Equal(152, image.Width);
Assert.Equal(160, image.Height);
}
public void Process(string p)
{
WebImage image = new WebImage(this.ImagePath);
switch (p)
{
case "Original":
break;
case "RotateLeft":
image.RotateLeft();
break;
case "RotateRight":
image.RotateRight();
break;
case "FlipHorizontal":
image.FlipHorizontal();
break;
case "FlipVertical":
image.FlipVertical();
break;
case "Resize":
image.Resize(image.Width / 2, image.Height / 2, preserveAspectRatio: true);
break;
case "AddTextWatermark":
image.AddTextWatermark("Elif Furuncu", fontColor: "Red", fontSize: 14, horizontalAlign: "Center", verticalAlign: "Bottom");
break;
case "AddImageWatermark":
WebImage watermark = new WebImage(this.ImagePath);
watermark.Resize(50, 50);
watermark = watermark.Save(Server.MapPath("~/images/watermark.jpeg"), imageFormat: "jpeg");
image.AddImageWatermark(watermark.FileName, 50, 50, verticalAlign: "Top", horizontalAlign: "Right", opacity: 75);
break;
case "Crop":
image.Crop(0, 0, 100, 100);
break;
default:
break;
}
string savePath = Server.MapPath("~/images/last.jpeg");
WebImage savedImage = image.Save(savePath, imageFormat: "jpeg");
image.Write();
}
// Code adapted from ReenignE, https://stackoverflow.com/questions/6222053/problem-reading-jpeg-metadata-orientation
/// <summary>
/// Fixes the orientation of an image
/// </summary>
/// <param name="imageStream">Image stream of image to fix</param>
/// <returns>Fixed image stream</returns>
public void FixOrientation(Stream imageStream)
{
Image img = Image.FromStream(imageStream);
if (Array.IndexOf(img.PropertyIdList, 274) > -1)
{
var orientation = (int)img.GetPropertyItem(274).Value[0];
switch (orientation)
{
case 1:
// No rotation required.
return;
case 2:
_webImage = _webImage.FlipHorizontal();
//img.RotateFlip(RotateFlipType.RotateNoneFlipX);
break;
case 3:
_webImage = _webImage.RotateRight().RotateRight();
//img.RotateFlip(RotateFlipType.Rotate180FlipNone);
break;
case 4:
_webImage = _webImage.RotateRight().RotateRight().FlipHorizontal();
//img.RotateFlip(RotateFlipType.Rotate180FlipX);
break;
case 5:
_webImage = _webImage.RotateRight().FlipHorizontal();
//img.RotateFlip(RotateFlipType.Rotate90FlipX);
break;
case 6:
_webImage = _webImage.RotateRight();
//img.RotateFlip(RotateFlipType.Rotate90FlipNone);
break;
case 7:
_webImage = _webImage.RotateLeft().FlipHorizontal();
//img.RotateFlip(RotateFlipType.Rotate270FlipX);
break;
case 8:
_webImage = _webImage.RotateLeft();
img.RotateFlip(RotateFlipType.Rotate270FlipNone);
break;
}
// This EXIF data is now invalid and should be removed.
//img.RemovePropertyItem(274);
}
}
public static WebImage RotateImage(WebImage image, string rotateVal)
{
if (rotateVal != "0")
{
if (rotateVal == "90")
{
image.RotateRight();
}
else if (rotateVal == "180")
{
image.RotateRight();
image.RotateRight();
}
else if (rotateVal == "270")
{
image.RotateRight();
image.RotateRight();
image.RotateRight();
}
else if (rotateVal == "-90")
{
image.RotateLeft();
}
else if (rotateVal == "-180")
{
image.RotateLeft();
image.RotateLeft();
}
else if (rotateVal == "-270")
{
image.RotateLeft();
image.RotateLeft();
image.RotateLeft();
}
}
return(image);
}
public void RotateRightReturnsRotatedImage()
{
WebImage image = new WebImage(_PngImageBytes);
image.RotateRight();
Assert.Equal(152, image.Width);
Assert.Equal(160, image.Height);
}
