Quote:
Originally Posted by site123a
I just saw this post and I think it's a great idea, one change I would make though.
A beam splitter is not a good idea because pickup tubes typically need a lot of light, and you would lose 50% of it after the split. It would be better to send light from the lens through a color prism and split green light to the pickup tube, and red & blue to there own CCDs, however your #3 example wouldn't work under this setup.
BTW, your image combinations shown on your site was not done correctly. I re-did your images by spitting your CCD photo into component YCrCb, then replaced the Y luminance with the pickup tubes and re-combin...
Your welcome to use those photos on your site, just give credit to site123a  |
Thanks for sharing your knowledge and ideas
, I will definitely keep them in mind when I one day put this tube/CCD idea into practice. Yep the way I did my colour combinations does not follow the given diagrams of the YRB colour combination method and I actually did mention it too, correct me if I'm wrong but I figured if I were to use the YRB method, the green would be derived from the luminance of the tube and the red/blue of the CCD and would probably be rather different and to the red and blue primaries which purely come from the CCD in which the greens may look more softer and along the lines of the tube used. So I chose to go the EMI 2001 4 tube colour camera method and basically have the 3 chroma primaries come from the CCD and have the luminance come from the tube and add the luminance on top of the chroma, this is so all three chroma channels are purely CCD and the luminance is purely tube. Anyhow looked at your YRB combinations, have to say they look very good and I don't seem to see any real smear on the greens like I thought I would, however have to see how it goes in practice.