Resizing the portrait-oriented images rotates it to 90° degrees.

[AlexKudrenko]

Hi. I'm trying to write a script to resize the image to 1200 pixels wide.
Everything seems to be working fine apart from the fact that all portrait-oriented photos are rotated 90° degrees.

The images are displayed correctly (in portrait orientation) in my camera roll.

But when I'm running the script they are rotated 90° degrees to landscape mode.

What am I doing wrong here?

Here is the script I'm using.

from PIL import Image
import photos
import console

image = photos.pick_image()

def customSize(image):
    w, h = image.size
    print 'Original image size: '+str(w)+' × '+str(h)+' pixels'+'\n'

    if w > 1200:
        wsize = 1200/float(w)
        hsize = int(float(h)*float(wsize))
        image = image.resize((1200, hsize), Image.ANTIALIAS)
        print 'Modified image size: 1200 × '+str(hsize)+' pixels'
    else: 
        print 'Image is too small to be resampled. Width is less than 1200 pixels'
    return image

image = customSize(image)
image.show()

saveit = photos.save_image(image)
print 'Done!'

[ccc]

import photos, PIL
photos.pick_image().show()

...will exhibit the same behavior with portrait images.

The problem here is that the documentation says that the Image.show() "method is mainly intended for debugging purposes". This means that you should not use it as a "production" user interface. Consider using the ui or scene modules for end user display of images instead of using Image.show().

Also, consider using format() to put values into strings:

print('Original image size: {} x {} pixels\n'.format(w, h))
# or even
print('Original image size: {} x {} pixels\n'.format(*image.size))

[omz]

The problem is basically that pick_image will return the original image data by default. The camera usually stores portrait photos as landscape images with additional metadata that specifies the orientation.

You can pass original=False to pick_image() to get the image that you see in the Photos app, though this may also result in a downscaled version of the image (since you're resizing it anyway, this shouldn't actually matter in this case). Alternatively, you could look at the image's metadata to figure out the orientation yourself, but in this case, I would really recommend trying original=False first.

[AlexKudrenko]

Thanks, omz. <code>original=False</code> helped. The only downside is that the image is already scaled to less than 1200 pixels (as you've said).

It still will work for me though.
I will take a look metadata option when have a little bit more free time :)

Thanks again.

[AlexKudrenko]

Thanks for the comment, ccc.
I will take a look at ui scene module as well.