help with flash in frame!!

epirb wrote on 5/2/2004, 7:34 PM
Can some one give me an idea of how to possibly remove/repair a frame of video that has a photo flash flare that appears in a 1 frame .It appears its duration was only 1/2 of the interlaced frame, so you see white interlaced type lines in the frame.
I captured the frame before and the frame after, but if I replace the bad frame with either it appears jerky.
Is there a way to get vegas to interperate an intermeadiate frame ?
Or poss another suggestion.
I also tried rendering the clip out setteing the properties deinterlaced settings to both interpolate and blend but that doesnt seem to help.

Comments

Spot|DSE wrote on 5/2/2004, 7:55 PM
Epirb, do you have photoshop? If you do, you can extract the full frame to there, and deinterlace it there. For this sort of purpose, it generally works better than the NLE does. You also might try turning off quantize to frames, and slightly shifting the frame, so that the newly repaired frame sits between the incoming frame and the frame containing the flash. I've had to do this on occasion, and while it's not absolutely perfect, it's quite passable.
The bigger question is if it affected your aperture or shutter settings on the cam, if you were running in auto mode. if it did, then more than just one frame is affected, depending on how long it took the camera to get back to the previous setting.
johnmeyer wrote on 5/2/2004, 8:01 PM
I've had pretty good luck by copy the frame just before or just after and copying it over the flash. The repeated frame is often unnoticeable.
epirb wrote on 5/2/2004, 8:04 PM
Johnmeyer, I agree I did that already in another shot and it worked fine,unfortunately this one has movement that is more notixeable between frames.(and I wanne keep the shot, its of the bride wiping a tear from the grooms eye, so sweet ;) )
Thanks Spot, Tried to do that in PSP dont have Photoshop but the frame only has it in the mainly dark areas and of course it also affected many edges. the Deinterlace filter in PSP for some reason the line it redid were much fatter than the lines in my frame .
I tried to deinter to both odd and even frames then layer those but still didnt turn out too good, I'm gonna try another simple solution and see how it works : placing a velocity envelope on the clip and setting the velocity down to like 99 or 98 percent starting about four frame before and ending about four frames after.
shouldn't this add interpretive frames in between?
johnmeyer wrote on 5/2/2004, 10:47 PM
Two ideas:

First Idea

1. Take seven frames, three frames before, the flash frame, and three frames after. Copy these frames and paste them somewhere.

2. Slow the frames down to 50%.

3. Render the result.

4. Take the frame closest to the flash that doesn't show a flash in either field, copy it, and then paste it back over the flash.

Second Idea

Download "Motionperfect" from Dynapel. I believe it has the ability to fill "gaps" in video and may do what you want. You can download a trial here to see if it works:

Motionperfect Download
farss wrote on 5/3/2004, 4:17 AM
This is going to sound really wierd but its helped me with some odd problems. Try a bit of motion blur. This causes frame integration which may avergae out the flash and from what you say a bit of motion blur may not look out of place in this situation.
Try experimenting with the envelope, try cranking it up to say 8 frame a few frames before and after the flash and ramp it down each side.
Remember also that the interlace artifacts look way worse on the internal monitor, you shouldn't see them on the TV so just be careful you're not trying to fix something that doesn't matter.