C#: How to change an image orientation property?

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3.67/5 (2 votes)

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C#

foreach (var prop in img.PropertyItems)
{
      if (prop.Id == 0x0112) //value of EXIF
      {
         var orientation = img.GetPropertyItem(prop.Id).Value[0];
         switch (orientation)
         {
            case 1:
            // No rotation required.
            break;
            case 2:
            img.RotateFlip(RotateFlipType.RotateNoneFlipX);
            break;
            case 3:
            img.RotateFlip(RotateFlipType.Rotate180FlipNone);

I have used above code to detect whether image orietation is changed from original. Suppose I have get orientation value as "3" and I want to set it to normal that is "1", so how I could replace that orientation property value 3 by 1?

Posted 7-Sep-15 23:08pm

Kailas_

Updated 7-Sep-15 23:23pm

Leo Chapiro

v2

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Leo Chapiro · Accepted Answer · 2015-09-07T23:37:00

Solution 1

Try it with Image.SetPropertyItem Method [^] like this:

C#

foreach (var prop in img.PropertyItems)
{
      if (prop.Id == 0x0112) //value of EXIF
      {
         var orientation = prop.Value;
         if (orientation == 3)
         {
             prop.Value[0] = 1;
             img.SetPropertyItem(prop);
         }
     }
}

Posted 7-Sep-15 23:37pm

Leo Chapiro

Updated 8-Sep-15 2:10am

v3

Comments

Kailas_ 8-Sep-15 6:07am

Cannot implicitly convert type int to byte[] on following line, how to cast that..
prop.Value = 1;

Kailas_ 8-Sep-15 7:54am

Thank, I did silly mistake..!