Opencv color detection upgrade

I have an Android app built and I need for it to detect all the colors on live view. I also need to the lightning in the image, so that the color can be detected at night. This has to be done automatically. This app already detects colors but only 3 are detected on live preview while on imported image all colors are detected. I need to detect all colors on live preview and use flash to light image on touch in live preview, so that all colors are detected, and I also need image correction so the app can detect the right color even on dark images.