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Help with Free App for Blind and Visually Impaired

Hi,

I have written a simple Android app as part of an effort to expand the services of e-NABLE to include help for the blind and visually impaired. The app emits a tone that varies in frequency according to the brightness of the pixel touched. The technique is nothing new and has limited utility but it's a good start in the right direction. You can find it on GitHub by following this link:

https://github.com/LesHall/blind-sight

At this time it works on the front cam image only. If we could take a screenshot of the entire Android display and determine the coordinates of the operator's finger on that display, then we could "e-NABLE" the operation of cell phones for blind and visually impaired people. I'm not sure if this is out there, but if it isn't then this could be of great benefit for those who need it.

Further developments may include time-spectral mapping of FFT's of the fingerprint or image or some other encoding that could be learned by the operator to sense the phone's screen or part of it. Also if such a thing can be done on a cell phone, then it is a simple matter to put the back cam on and point it around like a window on the world. You can imagine how powerful that could be for many people.

Thanks in advance for whatever help you can offer.
Les


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