A more detailed discuscion of two problems about the narrow dynamic range and seriousnoise of a faint light TV camera is presented in this paper. To ensure the faint light TV camera working perfectly at day and night

multiple links have to be used together

which includeoptical adjustment

automatic control of the high voltage of the intensifier of the faint lightTV camera

and automatic gain contrtol.A median filter is very effective for removing thespiced salt noise of a picture froma faint light TV camera. On certain conditions

some methods are also effective for real-time processing

such as signal delay and superimposition

background light trimming and gain reduction and so on.