How to Calculate the Native Colour Resolution of RGB/Bayer Single Chip? at DVinfo.net

John Jay · February 15th, 2006, 11:40 AM

Well it can never be 4:4:4 ; so how is the colour resolution calculated?

Giroud Francois · February 15th, 2006, 02:26 PM

since the resolution of a video signal is always calculated from the luminance, you could say it is the resolution from the CCD.
if it is a DV camera, anyway the signal is downsampled to 4:2:0 (pal) or 4:1:1 (ntsc).
Then you can expect the guys are wise enough to build a bayer that reflect this compression.
currently a bayer filter can be RGB or YUV, the YUV being closed to DV standard. RGB bayer require to create the picture into a memory and then convert back to YUV.
A YUV bayer is not made of RGB cells but Yellow, magenta, green (if i remmeber correctly).

Ken Hodson · February 15th, 2006, 03:17 PM

Here is a link to a Steve Mullen article.

http://images.videosystems.com/files...sexpertise.pdf

If you google his name or seach these very forums with combo's of his name and key-words you will get lots of great info.

February 15th, 2006, 11:40 AM	#1
John Jay Major Player Join Date: Sep 2002 Location: US & THEM Posts: 827	How to Calculate the Native Colour Resolution of RGB/Bayer Single Chip? Well it can never be 4:4:4 ; so how is the colour resolution calculated? __________________ John Jay Beware *PLUGGER-BYTES*

February 15th, 2006, 03:17 PM	#3
Ken Hodson Trustee Join Date: Aug 2003 Location: Vancouver BC Canada Posts: 1,315	Here is a link to a Steve Mullen article. http://images.videosystems.com/files...sexpertise.pdf If you google his name or seach these very forums with combo's of his name and key-words you will get lots of great info. __________________ Damnit Jim, I'm a film maker not a sysytems tech.

February 15th, 2006, 02:26 PM	#2
Giroud Francois Inner Circle Join Date: Feb 2004 Location: switzerland Posts: 2,133	since the resolution of a video signal is always calculated from the luminance, you could say it is the resolution from the CCD. if it is a DV camera, anyway the signal is downsampled to 4:2:0 (pal) or 4:1:1 (ntsc). Then you can expect the guys are wise enough to build a bayer that reflect this compression. currently a bayer filter can be RGB or YUV, the YUV being closed to DV standard. RGB bayer require to create the picture into a memory and then convert back to YUV. A YUV bayer is not made of RGB cells but Yellow, magenta, green (if i remmeber correctly).