December 3rd, 2011, 07:16 PM
Join Date: Sep 2010
Location: Xilinhot, China
Device(s): Oppo Find 7a, Samsung Galaxy Win Duos(spare), Lenovo P700i(retired), KIRF Galaxy Note(deceased)
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Originally Posted by SamuelDaniel
Firstly let me apologise if Ive posted this in the wrong category!
Need some advice with a cctv
system that I bought from Maplins (ok,ok you can stop laughing now!).
250gb DVR with 4 cameras - All working fine , apart from one problem...
The colours are all wrong! , Grass is showing as purple , and the driveway is currently a dull green! . The actual image quality is good and workable , but the colour is like something out of a 1960's festival! Tried swapping the camera , same problem.
It's because the camera is sensitive to infrared, so it can still give an image in the dark with infrared illumination. It can screw-up colour rendering. I think the cheaper security camera systems are more prone to it though. A friend of mine also bought a cheap CCTV system from Maplin, does exactly the same thing. Regular digital cameras usually have an infrared filter, so they'll give correct colour rendering. As these are not required to do night vision.
Was reading a reading a geek type article a few years ago about hacking Quickcam webcams for infrared and night vision, which basically involved disassembling the webcam and removing the infrared filter. It worked, but then the webcam had horrible colour rendering.
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Last edited by mikedt; December 3rd, 2011 at 07:26 PM.