Finish mobile application for endoscope turbidity sensor

[HannahSi]

We currently have two programs: one is run on a computer and streams the computer's own camera or an external camera (the endoscope, connected by USB) while calculating average light intensity of the video frames; the other is an Android app that currently streams feedback from the phone's own camera(s) with constant exposure.

The two functionalities still need to be integrated into the smartphone app. This has been more difficult because the Android libraries cannot directly access external cameras. Instead, we are considering using the OpenCV library (which we will use anyway for image processing) or a third party library (see https://stackoverflow.com/questions/37828376/android-open-external-uvc-camera-instead-hardware-camera) to communicate with the endoscope camera.

[HannahSi]

As for the GUI, below are functionalities to include: Need/Strongly want:

• The turbidity of the fluid currently surrounding the endoscope
• A scaled-down live video from the endoscope
• An indication of whether the endoscope has entered the sludge blanket

Want:

• A number-picker/dial for the user to input the depth of the endoscope (known by the expandable ruler used to lower the endoscope)

Wish:

• An option to see a graph of turbidity plotted against depth
• The ability to save such graphs ("turbidity profiles") for each run
• A main menu page where the user can choose to start a new run or view past profiles

[HannahSi]

@ll678 I think my first comment in this issue is a good explanation of progress and next steps I talked about today. Basically, the mobile app still needs to 1) Access and display images from an external camera, i.e. the endoscope

• Maybe use OpenCV, which we used to access the camera in the Endoscope Pilot Code project 2) Process those images for average light intensity
• See the averageLight function in EndoscopeFrame.java in the Endoscope Pilot Code project)

I'm currently working on documenting the mobile app code. When I'm done, would you like me to send it to you or contribute it to the repository?

[ll678]

@HannahSi You can contribute the documentation to the repository. Thank you!