a small but efficient circuit that spilt the composite video in two parts, video signal and sync and outputs the video signal via connector. The modified video can be returned to the circuit via another connector. This circuit is very handy to prototype circuits to modify the image content (low pass, high pass, inverter,...)

A new version is in progress where the colorburst is also outputed to be modified. Phase shift(color transformation),invertion(negative image) or total removal (black/white image due to the lack of colorburst reference) will be available.

Based on the video inverter

. video_tool