This object is in archive! 

What format is the 'image' BLOB column in the SQlite map file?

Benjamin van der Burgh shared this question 4 years ago
Answered

I'm trying to convert the SQLite database into regular image tiles. I've bought a map and I'd like to convert it into a format that I can easily manipulate with e.g. Photoshop. I'm a programmer and I found it easy to retrieve the binary data with Python and a SQLite connector, but it's unclear what format the binary BLOBs are in. Could you help me out?

Replies (3)

photo
2

Good day Benjamin,

data in SQLite map database are usually basic PNG or JPEG files. Anyway, you wrote, "I've bought" ... here is a situation a little bit different. Purchased map tiles are encrypted and protected so it cannot be easily extracted from SQL file for some external processing.

Let me know if I may help here somehow, anyway method of encryption is of course not known to the public. Thanks for understanding.

photo
1

Hi Menion,

Thanks for the quick response during the weekend!

That's very unfortunate. Is there some other way to print out this bought map?

Kind regards,

Benjamin

photo
1

Hello Benjamin,

unfortunately, there is no possible method of how to get the whole map as a bitmap from an encrypted SQLite map file.

Menion

Replies have been locked on this page!