How To Test a Colour USB UVC Camera for Repeatable Inspection Two packets come down a conveyor. The first carries a label in the intended shade of blue. The other carries a label printed in a marginally different shade. On a still image, the difference is easy to spot. On https://blogdailynews-newspath332.tribunablog.com/the-blog-to-learn-more-about-autofocus-color-usb-camera-and-its-importance-58636633