Integrated Web Cam Edge Detection Test

Hi Guys,  I have just run a full diagnostics and advanced test.

Integrated Web Cam

Edge Detection Test

1.  Error Message: Not enough edges detected 0

Failed (Error code WWC09V4H)

2. Luminance Depth Test:

Warning Message; Image was too dark or too light

3. RGB Colour Depth Test

Warning Message: Number of RGB channels with narrow colour range: 3

Can someone please explain and what is the remedy?

Thanks.   Pedro