Why does the color Red suck so bad?

I've had this problem with saturated reds when capturing raw (non-hdv compressed) SDI 4:2:2 from the XL-H1 to DVCPRO HD through a Kona card. It's definitely a limitation of the codec that I've seen. It is somewhat mitigated by performing a chroma smoothing filter in the timeline. This works especially well in FCP with "G Nicer" from Nattress.

I've captured similar saturated colors with PhotoJPEG and Sheer (lossless HD codec) and they've held up much better. Most other saturated colors seem to be ok with DV100.
 
Whathafa said:
Insanityfw,

I can see the aliased red in yours, too.
Click to expand...

hmmm......yes, plenty of aliasing in that too, you're right, but you were also missing my point. :)

I did, however, keep red out of my next shoot. It's too bad because it's such a good color for video.
 
Red is the noisiest color channel - this is one of the reasons why greenscreen is more popular than blue - because green is cleaner than blue and blue is cleaner than red. Red is the butt of video simply put.
 
I remember in the days of the Quad, (4 head broadcast) machines, even the best machines showed banding across any red colors.
We got it easy today! :)
 
i've made two threads on this issue in the dvx section, but isee people are having this problem with the HD cmaeras as well.

Question for all of you ( and a statement )

Since i have had my DVX100B, ive always edited on Adobe Premier Pro 1.5.
Lately, i just made the switch to a MacBook Pro, with Final cut pro 5.1.2, and the problem started to come!

My reds were completely blocky. People kept saying it was a problem with the 4:1:1 color, and things like premier pro 1.5 must aply an auto chroma blur for the red channel upon import, and other nonesense like this. I have always been confident that this is an issue with the codecs and ill tell you why.

I installed Booktcamp on my macbook pro, and adobe premier pro 2.

I imported my footage as AVI into premier pro, switched back to MAC OS, started up final cut pro, imported the AVI footage, and the red issue was not there, as opposed to when i imported it into final cut pro, as a .MOV.

However, i dont think MAC much likes AVI format, as my footage was substantually lower in quality than the AVI in windows.

But the red problem was not there?

There must be an issue with codecs, someone has to figure out this problem.

final cut pro has no "Chroma Blur" effect, but im sure there is something else that can be done without sacrificing the quality of our work.

whos brave enough to look into this?
 
Really sad to read what you guys are posting. Some years ago I got really mad and disappointed when I first captured footage from my brand new NV-GS250. The reds, omg, how awful! They were clearly composed of disgusting pixel blocks, that effect was so noticeable it wasn't even fair to say it was aliasing! It was much worse! I even thought the camera was deffective, but I was told everywhere it was a problem of the 4:1:1 sampling rate (even by experts, showing me frames got by their similar cameras). However, I never stopped being suspicious, because having used many 1ccd cheap non-pannie camcorders before, I'd never seen that problem so bad. So I silently conclude it was some Panasonic compression issue.

There was no way to remove this. I tried many NLEs, and the result were alike. So I was forced to get used to it and try to avoid really saturated red, or else apply some chroma blur in post. The camera was great in every other aspect.

Now, reading about this is particularly annoying for me. I'm just about getting two HVX, but I will strongly consider backing off if this shitty red problem remains in this otherwise great cam. It would be fantastic if some video expert tell us what exactly is it, since I certainly can assure that artifact is not present in the whole bunch of HDV cams I've tested.
 
"There was no way to remove this. I tried many NLEs, and the result were alike. So I was forced to get used to it and try to avoid really saturated red, or else apply some chroma blur in post. The camera was great in every other aspect."


You must have no tried adobe premier pro, as i stated in my previous post, this problem never arose.
 
I had many footage made with the DVX100a and captured in Velocity (Quattrus) via component cable (out from a sony DSR-45) without problems, I didn't tried firewire.
But Red isn't a friendly color in video, I usually keep it reduced in post.
Here is a commercial recorded in DVX100a that had a red background, it was broadcasted without complains:

http://www.youtube.com/watch?v=u8-tShL3-UM

Ulisses
 
PaPa said:
"There was no way to remove this. I tried many NLEs, and the result were alike. So I was forced to get used to it and try to avoid really saturated red, or else apply some chroma blur in post. The camera was great in every other aspect."


You must have no tried adobe premier pro, as i stated in my previous post, this problem never arose.
Click to expand...

I did, in fact. It was my first choice, I'm an Adobe guy. There was no improvement, however.
 
You must log in or register to reply here.
Back
Top