React state is always one step behind while making predictions on uploaded image using Tensorflowjs

[theairbend3r]

Platform Issues

There are some platform issues where the Inference does not run properly on certain combinations of device + browser + image input type.

Question on stack overflow => https://stackoverflow.com/questions/62568668/react-state-is-always-one-step-behind-while-making-predictions-on-uploaded-image

TLDR;

Following combinations of device + browser + image input are working -

Device	OS	Browser	Input Method
Desktop	Windows	Chrome	Webcam
Desktop	MacOS	Chrome	Webcam
Desktop	MacOS	Safari	Webcam
Mobile	Android	Firefox	Upload
Mobile	Android	Chrome	Webcam
Mobile	iOS	Safari	Webcam

Following is the report of where it works and where it doesn't along with the behaviour observed.

Desktop

Table

	Ubuntu	Windows	MacOS
Firefox	not working	not working	not working
Chrome	not working	somewhat working	somewhat working
Safari	NA	NA	somewhat working

Comments

	Ubuntu	Windows	MacOS
Firefox	Predictions are always one step behind for both Captured and Uploaded images.	Predictions are always one step behind for both Captured and Uploaded images.	Predictions are always one step behind for both Captured and Uploaded images.
Chrome	Works only on Captured Images. Uploaded images give same predictions always.	Works only on Captured Images. Uploaded images give same predictions always.	Works only on Captured Images. Uploaded images give same predictions always.
Safari	NA	NA	Works only on Captured Images. Uploaded images give same predictions always.

Mobile

Table

	Android	iOS
Firefox	somewhat working	not working
Chrome	somewhat working	not working
Safari	NA	somewhat working

Comments

	Android	iOS
Firefox	No predictions load for a captured image. Works on uploaded images only.	Camera does not load. Uploaded images give same predictions always.
Chrome	Works on capture images only. Uploaded images give same predictions always.	Camera does not load. Uploaded images give same predictions always.
Safari	NA	Works only on Captured Images. Uploaded images give same predictions always.