Image rotation based on the EXIF data

Hello Amit Gupta,

Thank you for the reply,

We worked on EXIF data information from the above given site. The exif information is showing from the below images.

I have 2 images :

1.FabricHeaderExample.jpg

2.H12532D_ANTIBEE.jpg

For the first image 1: FabricHeaderExample.jpg having exif data showing image property items value is 274(getting orientation value as 6) and having GPS information.

For the second image 2.H12532D_ANTIBEE.jpg having exif data showing image property items value is 274(getting orientation value as 6) and there is no GPS information.

For Example 1: FabricHeaderExample.jpg image looks Potraint image, when i upload this image and displaying in Image control.

while displaying it is rotating as landscape. It is having exif data. for this i write a code as below:

Dim img As Image = Image.FromFile(selectedFileName)
Dim propid = (From p In img.PropertyItems Where p.Id = 274 Select p).ToList
If propid IsNot Nothing Then
For Each pid In propid
Dim orientationValue As Integer = pid.Value(0)
Dim rotateFlipType As RotateFlipType = OrientationToFlipType(orientationValue)
img.RotateFlip(rotateFlipType)
img.RemovePropertyItem(274)
Exit For
Next
End If
Private Shared Function OrientationToFlipType(ByVal orientation As String) As RotateFlipType
Select Case Integer.Parse(orientation)
Case 1
Return RotateFlipType.RotateNoneFlipNone
Case 2
Return RotateFlipType.RotateNoneFlipX
Case 3
Return RotateFlipType.Rotate180FlipNone
Case 4
Return RotateFlipType.Rotate180FlipX
Case 5
Return RotateFlipType.Rotate90FlipX
Case 6
Return RotateFlipType.Rotate90FlipNone
Case 7
Return RotateFlipType.Rotate270FlipX
Case 8
Return RotateFlipType.Rotate270FlipNone
Case Else
Return RotateFlipType.RotateNoneFlipNone
End Select
End Function

After that, it displaying properly.

For example 2: H12532D_ANTIBEE.jpg image looks normally image, but it is having exif data am using above code to display image in image control.

but the image is not rotating properly. but both images are getting same orientation value as 6.

I need to fix the code for both images are displaying properly.

Here am uploading sample application, in that application under images folder having above mentioned 2 images.

Regards

Chakradhar.

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Amit Gupta8y ago
Accepted answer
Exif interface class is basically used in android that requires to find out the rotation orientation.

WPF doesn't required EXIF information for rotation, when you load image to image box, it automatically detects the rotation and loads the image accordingly.

You can get reference EXIF data from the below site
https://www.codeproject.com/articles/43665/exiflibrary-for-net
+1
chakri reddy8y ago
Hello Amit Gupta,

Thank you for the reply,
We worked on EXIF data information from the above given site. The exif information is showing from the below images.

I have 2 images :
1.FabricHeaderExample.jpg
2.H12532D_ANTIBEE.jpg

For the first image 1: FabricHeaderExample.jpg having exif data showing image property items value is 274(getting orientation value as 6) and having GPS information.

For the second image 2.H12532D_ANTIBEE.jpg having exif data showing image property items value is 274(getting orientation value as 6) and there is no GPS information.

For Example 1: FabricHeaderExample.jpg image looks Potraint image, when i upload this image and displaying in Image control.

while displaying it is rotating as landscape. It is having exif data. for this i write a code as below:
Dim img As Image = Image.FromFile(selectedFileName)
Dim propid = (From p In img.PropertyItems Where p.Id = 274 Select p).ToList
If propid IsNot Nothing Then
For Each pid In propid
Dim orientationValue As Integer = pid.Value(0)
Dim rotateFlipType As RotateFlipType = OrientationToFlipType(orientationValue)
img.RotateFlip(rotateFlipType)
img.RemovePropertyItem(274)
Exit For
Next
End If
Private Shared Function OrientationToFlipType(ByVal orientation As String) As RotateFlipType
Select Case Integer.Parse(orientation)
Case 1
Return RotateFlipType.RotateNoneFlipNone
Case 2
Return RotateFlipType.RotateNoneFlipX
Case 3
Return RotateFlipType.Rotate180FlipNone
Case 4
Return RotateFlipType.Rotate180FlipX
Case 5
Return RotateFlipType.Rotate90FlipX
Case 6
Return RotateFlipType.Rotate90FlipNone
Case 7
Return RotateFlipType.Rotate270FlipX
Case 8
Return RotateFlipType.Rotate270FlipNone
Case Else
Return RotateFlipType.RotateNoneFlipNone
End Select
End Function
After that, it displaying properly.

For example 2: H12532D_ANTIBEE.jpg image looks normally image, but it is having exif data am using above code to display image in image control.

but the image is not rotating properly. but both images are getting same orientation value as 6.

I need to fix the code for both images are displaying properly.

Here am uploading sample application, in that application under images folder having above mentioned 2 images.

Regards
Chakradhar.
+1