Question

Olaf H-- on Fri, 10 Jun 2016 16:21:48


I am currently trying to send an image with JS from a canvas to the face api and fail with the binary image encoding.

Does anyone have some more data but:

use contentType: "application/octet-steam" and put the binary image data in the body

I have tried using canvas.toDataURL and removing the type/encoding part at the beginning, then base64-decoding the remaining base64-encoded string.

The result remains the same even after various variations (encoded, not-encoded, URL and toDataURL information as JSON), nothing seems to work. The best I get is a

400 Bad Request "{"error":{"code":"InvalidImage","message":"Decoding error, image format unsupported."}}" Error.

Any hints?






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Replies

cthrash99 on Fri, 10 Jun 2016 17:32:31


You need to serialize the blob.  Although this answer is for the Vision API, the same principle applies for Face: http://stackoverflow.com/questions/34047648/how-to-post-an-image-in-base64-encoding-via-ajax/34064793#34064793

Olaf H-- on Sun, 12 Jun 2016 10:00:38


Thanks, that did it. I should have noticed that the request binary data didn't look like the original expected jpeg or png format (initial byte sequence).