Rotating an image with orientation specified in EXIF using Python without PIL including the thumbnail

Question

I have the following scenario:

• I am sending an image from iPhone along with the EXIF information to my Pyhon socket server.
• I need the image to be pro

Answer 1

I have found a solution... check this out... http://www.atoztoa.com/2012/12/rotate-images-along-with-thumbnails-in.html

'''
Rotate Image
'''
import pyexiv2
import wx
import cStringIO
import os

def rotateImage(infile, device):
    try:
        # Read Metadata from the image
        metadata = pyexiv2.metadata.ImageMetadata(infile)
        metadata.read();

        # Let's get the orientation
        orientation = metadata.__getitem__("Exif.Image.Orientation")
        orientation = int(str(orientation).split("=")[1][1:-1])

        # Extract thumbnail
        thumb = metadata.exif_thumbnail

        angle = 0

        # Check the orientation field in EXIF and rotate image accordingly
        if device == "iPhone" or device == "iPad":
            # Landscape Left : Do nothing
            if orientation == ORIENTATION_NORMAL:
                angle = 0
            # Portrait Normal : Rotate Right
            elif orientation == ORIENTATION_LEFT:
                angle = -90
            # Landscape Right : Rotate Right Twice
            elif orientation == ORIENTATION_DOWN:
                angle = 180
            # Portrait Upside Down : Rotate Left
            elif orientation == ORIENTATION_RIGHT:
                angle = 90

            # Resetting Exif field to normal
            print "Resetting exif..."
            orientation = 1
            metadata.__setitem__("Exif.Image.Orientation", orientation)

        # Rotate
        if angle != 0:
            # Just rotating the image based on the angle
            print "Rotating image..."
            angle = math.radians(angle)
            img = wx.Image(infile, wx.BITMAP_TYPE_ANY)
            img_centre = wx.Point( img.GetWidth()/2, img.GetHeight()/2 )
            img = img.Rotate( angle, img_centre, True )
            img.SaveFile(infile, wx.BITMAP_TYPE_JPEG)

            # Create a stream out of the thumbnail and rotate it using wx
            # Save the rotated image to a temporary file
            print "Rotating thumbnail..."
            t = wx.EmptyImage(100, 100)
            thumbStream = cStringIO.StringIO(thumb.data)
            t.LoadStream(thumbStream, wx.BITMAP_TYPE_ANY)
            t_centre = wx.Point( t.GetWidth()/2, t.GetHeight()/2 )
            t = t.Rotate( angle, t_centre, True )
            t.SaveFile(infile + ".jpg", wx.BITMAP_TYPE_JPEG)
            thumbStream.close()

            # Read the rotated thumbnail and put it back in the rotated image
            thumb.data = open(infile + ".jpg", "rb").read();
            # Remove temporary file
            os.remove(infile + ".jpg")

        # Write back metadata
        metadata.write();

    except Exception, e:
        print "Error rotating image... : " + str(e)