Include image mime in request

[bestlibre]

Fix for #24 . I have tested with a local install of tensorflow-lite-server, it's working. I don't have an instance of deepstack to test against it and I'm not familiar with the test suite to add test. I hope this PR is still usefull.

[robmarkcole]

@bestlibre how did you find that solution? Possibly here

[bestlibre]

I found the solution based on the curl command in the readme of tensorflow-lite-server and the documentation of requests. The first part of the solution was with a fixed mime type and then I search how to get the mime type from a byte array which lead me to filetype.

[robmarkcole]

Unfortunately on deepstack official this approach raises error: {'success': False, 'error': 'No valid image file found'}

You can run deepstack official with:

docker run -e VISION-DETECTION=True -v localstorage:/datastore -p 5000:5000 -e API-KEY="" --name deepstack deepquestai/deepstack:cpu-x3-beta

[robmarkcole]

stale