IndiJones
Full Member level 2
We have built a prototype of a 3CCD digital video camera. When we take live images and view them on an LCD monitor, strange kind of noise signals appear on the image. These are scattered red spots having the size of 1 pixel and are always moving. They appear only on green colored objects. They can be seen on the edges of the object. If you hold a green colored cloth, noise spots can be seen on the borders and in places where the cloth surface is not even. For instance, if you cover the tip of your index finger with the cloth, it'll have a shape like a mountain and there will be some bending on the cloth, thereby creating some edges. Noise can be observed on these edges too. Please note that the image that I'm talking about is the final image that doesn't have any other noises. Noise correction has already been done. These noises don't appear on objects having colors other than green! Increasing the gain of the red channel makes them disappear. However, doing the same for green and blue channel increases the noise.
Does anyone have any such experiences? It would be very helpful if someone could advise me on how to get rid of this thing.
Thanks in advance!
Does anyone have any such experiences? It would be very helpful if someone could advise me on how to get rid of this thing.
Thanks in advance!