Neat Video v4 & Calibration Targets
Posted: Mon Sep 28, 2015 11:55 pm
I have read the information provided at the following URL:
https://www.neatvideo.com/profiling-target.html
I have also read some posts on the subject in this forum, but there are several things that are still not clear to me, hence this post. My aim is to create a good set of noise profiles from a Calibration Target, for use with my Lumix GX-7 camera, for use in cases where I cannot find a detail free section of video to create a noise profile normally. I typically shoot at 1080p, 60fps.
First, I read that there is little difference between the B&W and Color Calibration Target. If true, why not use only one? Why present us with two? I must therefore assume that one is slightly better than the other. The color one? Or does the B&W cal. target improve B&W video whereas the color cal. target is intended for color video?
Second, what paper size would be ideal to print to? Should we use A3 paper, A4, B4?? Even if it matters little, which would be preferred — a larger target?
Third, there are so many different camera settings. Creating a comprehensive set of profiles would be a formidable job. Must I truly create a separate profile for every single ISO setting, then repeat that under indoor and outdoor lighting, then repeat all of that for every level of depth of field, then do all of that for multiple lenses? If so, the sheer number of profiles and time required would be absolutely incredible. What kind of guidance can you provide on this point?
Fourth, I see donated profiles on your website that were kindly made public by others for use with Neat Image, but none for Neat Video. Is there a reason why no one is using (or no one is donating) video profiles? Do more people use Neat Image than Neat Video?
Fifth, when shooting the Calibration Target (printed on paper), should we cut the target exactly to size (so there is no white paper border around it, and then affix that to black paper? Or should the border around the target be white?
Sixth, you say to shoot the Calibration Target slightly out of focus, but then in another place you say to set the lens at Infinity or Macro. That isn't very exact information. Just how "out of focus" is IDEAL? Do I need to blur it out so the text is unreadable? Or do I make the focus just slightly fuzzy? And why does this even matter? (If you said, "blur out the cal. target until the text is just barely unreadable" would be rather specific information that I can easily follow, but "blur it slightly" is just too vague.)
Thank you.
https://www.neatvideo.com/profiling-target.html
I have also read some posts on the subject in this forum, but there are several things that are still not clear to me, hence this post. My aim is to create a good set of noise profiles from a Calibration Target, for use with my Lumix GX-7 camera, for use in cases where I cannot find a detail free section of video to create a noise profile normally. I typically shoot at 1080p, 60fps.
First, I read that there is little difference between the B&W and Color Calibration Target. If true, why not use only one? Why present us with two? I must therefore assume that one is slightly better than the other. The color one? Or does the B&W cal. target improve B&W video whereas the color cal. target is intended for color video?
Second, what paper size would be ideal to print to? Should we use A3 paper, A4, B4?? Even if it matters little, which would be preferred — a larger target?
Third, there are so many different camera settings. Creating a comprehensive set of profiles would be a formidable job. Must I truly create a separate profile for every single ISO setting, then repeat that under indoor and outdoor lighting, then repeat all of that for every level of depth of field, then do all of that for multiple lenses? If so, the sheer number of profiles and time required would be absolutely incredible. What kind of guidance can you provide on this point?
Fourth, I see donated profiles on your website that were kindly made public by others for use with Neat Image, but none for Neat Video. Is there a reason why no one is using (or no one is donating) video profiles? Do more people use Neat Image than Neat Video?
Fifth, when shooting the Calibration Target (printed on paper), should we cut the target exactly to size (so there is no white paper border around it, and then affix that to black paper? Or should the border around the target be white?
Sixth, you say to shoot the Calibration Target slightly out of focus, but then in another place you say to set the lens at Infinity or Macro. That isn't very exact information. Just how "out of focus" is IDEAL? Do I need to blur it out so the text is unreadable? Or do I make the focus just slightly fuzzy? And why does this even matter? (If you said, "blur out the cal. target until the text is just barely unreadable" would be rather specific information that I can easily follow, but "blur it slightly" is just too vague.)
Thank you.