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i have a idea to create a small screen which displays video recorded from arduino with camera. so camera will be back side of human and screen will be at near to eye. human can see the pictures from back side.

i have found https://electronics.stackexchange.com/questions/29139/processing-ntsc-video-feed-for-spi-display

but its not give me a clear idea. is there any one who can advice me for that kind project?