Converting hex data to image

[Tim Golden]

On 14/11/2013 15:32, Shyam Parimal Katti wrote:
> I am implementing an authentication system(in Django) using LDAP as the
> backend(django-auth-ldap). When we fetch the data from the LDAP server
> for a particular valid user, the data associated with the user contains
> the thumbnail photo in hex representation. E.x.:
> 
> [('CN=XX,OU=Users,OU=Accounts,DC=test,DC=com',
> {'msExchBlockedSendersHash': ['\xce'], 'mailNickname': ['test_user'],
> 'primaryGroupID': ['513'], 'logonCount': ['1021'], *thumbnailPhoto:
> ['\xef\xd8\xff\xe0\x00\x10JFIF\x00\x01\x01\x01\x00`\x00`\x00\x00\xff\xdb\x00C\x00\x08\x06\x06\x07\x06\x05\x08\x07\x07\x07\t\t\x08\n\x0c\x14\r\x0c.....']*
> ...... ]
> 
> How do I convert the hex data for an image to the actual image?

Well, the first few bytes suggest that it's a JPEG, so save the bytes as
"something.jpg" and there you have it: an actual image.

Alternatively, you could load it into PIL [1] / Pillow [2] and
manipulate it as you see fit...

TJG

[1] http://www.pythonware.com/products/pil/
[2] https://pypi.python.org/pypi/Pillow/