On Sunday, 16 December 2012 20:43:12 UTC+1, jwe.va...@gmail.com wrote:
> I want to resize an image but retain the exif data
>
> I now have:
>
> import Image
>
>
>
> img = Image.open('photo.jpg')
>
> img.thumbnail((800, 800), Image.ANTIALIAS)
>
> img.save('photo800.jpg', 'JPEG')
>
>
>
> The saved image photo800.jpg has no exif info anymore.
>
> I would so much like to have it retained in particular the exposure and gps
> data.
>
>
>
> I use Python 2.7 with PIL 1.17 on Ubuntu 12.04
>
> For exif reading/writing I use pyexiv2 0.3.2 but apparently you cannot add
> tags to an image that has none; only modifying existing ones seems to work.
>
>
>
> Thanks for any helpful suggestions,
>
> Janwillem
Thanks Vincent,
I tried that but without try-except. I should have done and with also a try
except in your except it works. It appears that the failure is in a few Nikon
tags that apparently can be read but not set.
Setting Exif.Nikon3.0x002d failed, <class 'pyexiv2.utils.NotifyingList'>
Setting Exif.Nikon3.0x009d failed, <type 'int'>
Setting Exif.Nikon3.ExposureTuning failed, <type 'str'>
Setting Exif.Nikon3.Preview failed, <type 'long'>
Not important so I am happy with your tip.
Janwillem
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