Voice vision app for iPhone and iPad

This is a utility to help visual impaired persons to get a quick view of the surrounding environment by the camera.It helps you to detect walls,doors,windows,light sources.You can use it to know objects colors .
This application convert image from the back camera to sound . It scans from left to right ,one to four times per second .A pixel from the image generate a tone at pitch from 440HZ to 15000HZ,the brightness controls the loudness of the tone. The pixels from the top generate high pitch sounds , and the pixels from the bottom of the image generate low pitch sounds . There are about 30 pixels generate sounds at the same time ,like 30 peoples sing together with different loudness.
There is a realtime color picker , which tells you the color name of the pixel of the center of the video frame .
There is a image color analyzer ,which report the percentage of colors of a image .