scify/ICSee ? reverse-engineered prompt

Build me an Android app for people with visual impairments that uses the phone or tablet camera to make text and objects easier to see in real time. When the user points the camera at something like a menu, receipt, door sign, or taxi meter, the app should process the live image and show a clearer version on screen, with options like grayscale, negative, and stronger contrast.

It should feel simple and accessible, with a short audio tutorial when the app starts, and it should work smoothly on small portable devices. I’d like it to use the camera and real time video processing so the image updates live as the user moves around. Please make it easy to build and run as an Android project, and if you need to check any current setup details, look up the latest docs online.