Video coding system for mail shipments

摘要

The present invention relates to a video coding system for mail including a scanner by which pass all letters, and a plurality of monitors for displaying a scanned address. The monitors are video monitors with screens having a controllable color reproduction so as to provide a simple means for realizing changing background hues. The color control signal required for this purpose is generated, uniformly for the entire picture or frame either by means of a simple color detecting device arranged in the area of the scanner or by a respective color control signal generator which is controlled by a random signal generator switched to correspond with the change of frame.