Still Pix, Blur, & Your Opinion...

kentwolf wrote on 4/4/2004, 3:25 PM
After Spot gave me some simple suggestions, I now have my digital still pix looking good.

Question: Would it be considered a no-no to have *any* electir-looking "shimmer" in video footage?

I ask this because even @ .001 gaussian blur, I can see a very slight loss of detail; not much, but I can still see it.

In your opinion, could slight shimmer remain and only the worst cases be treated, or should it all be 100% shimmer-free?

Thanks for your opinion...

Comments

4thorder wrote on 4/4/2004, 4:41 PM
certain pics seem to exhibit this shimmering effect more than others I have found so you could conciveably choose just pics that dont do this and put them in your project and avoid the blurring option.

I have used the blur option at 0.001 and it pretty much gets rid of all flicker, but it does take away a little bit of detail which I guess a person has to live with. But this is a small trade off to the flicker. Watch 10 minutes of flicker and you will be ready to jump!
JohnnyRoy wrote on 4/5/2004, 6:56 AM
If the pictures have very thin lines that are one pixel high there is no way to remove the shimmer. This is because the video is interlaced and that one pixel only shows up in one field of a two field image. So every time that line is drawn it shimmers as the odd field is refreshed and then the even field (which doesn’t contain the line) is refreshed. You can’t get away from this. That’s why they tell you not to wear horizontal stripes on TV. There is no magic for this. It’s the nature of the interlaced medium.

~jr
JJKizak wrote on 4/5/2004, 7:12 AM
Would speeding up the frames per second substantually blur the flicker also, in other words make the flicker so fast your eyes can't see it?
Cheesehole wrote on 4/5/2004, 8:11 AM
NTSC TV's run at about 60 fields per second. You can't change that. So the answer is yes, if you could speed up the rate at which the TV paints the screen you could eliminate the flicker, but no, because you can't do that.
JJKizak wrote on 4/5/2004, 9:32 AM
Thanks. Just thinking obtusely. Thought maybe by varying the velocity envelope that some kind of visual null could be obtained with a still picture.

JJK