Need help with a strong backlight on my video clip

[MartinMtb92]

Racer-x Thanks for that man! I think it looked a bit better actually thanks for your help!

[racer-x]

Here's the Slo-Mo version. You'll have to add your own audio though...

[jagabo]

You should consider doing something like this with motion tracking in an NLE:



The background has the contrast lowered and is darkened. The highlighted circle has the contrast enhanced.

[budwzr]

I watched Racer's slomo, and now I finally see something. That double flip is impressive.

[racer-x]

I watched Racer's slomo, and now I finally see something. That double flip is impressive.

Does that mean I get $1,000,000,000,000? I'll settle for a good shot of Jack Daniels....

[budwzr]

I only drink Wild Turkey and Branch.

[MartinMtb92]

Thanks for that man i think it looked a bit better actually! Appreciate it!

[poisondeathray]

"automatic" motion tracking this is actually very difficult - besides the obvious exposure issues, there are rolling shutter, compression artifacts, motion blur - all those things make it difficult to track or interpolate for slow motion because the edges are so ill defined. I'm not a fan of the edge morphing artifacts with interpolated frames - I think frame repeats work better here

You can actually re-create some of the missing data (the wheels might "disappear" in some frames - the "invisible bike") , by "borrowing" from other frames and manipulating the data by rotating, scaling and changing the perspective , but the problem for that type of approach is it might reduce the "authenticity" of the video.

Here is a rough shape mask from frames 69-110 in lagarith RGB. It's the same idea as jagabo's above, but it roughly conforms to the outline instead of being a static shape like a circle or square . If you had lots of time, you would punch out holes in the mask, and make it tighter, so that only the bike and rider are isolated and things like holes in the spokes would be present so the foliage wouldn't be part of the mask. Also attached is a clip using the mask - once normal speed, then slowed motion with duplicates, with higher contrast applied through the mask.

[racer-x]

Nice work PDR. Although the mask is visible, it's still a marked improvement.

I guess budwzr owes you $1,000,000,000,000 now.......

[poisondeathray]

Yes, it's just a rough roto mask - a "garbage matte" really. It's meant to highlight the area of interest, similar to jagabo's screenshot, or that you see on sports replays. But even if you spent more doing a better job on the roto, there is quite a bit of missing data and you have to "guess" where some things are like spokes on some frames. It would take quite of bit of work to do a "perfect" roto job on these few frames

I uploaded the wrong version of the matte ( cropped); here is a 1:1 1920x1080 so you should be able to drop it on frame 69 and it will be aligned instead of having to reposition it.

[budwzr]

That reward was for complete restoration, not improvement here and there.

What I've seen so far only qualifies for kudos and a "Yeoman's Try" shout-out, fer krisakes.

I'll admit the slomo/frame doubling makes it more viewable, and establishes the complexity of the stunt. You can see clearly that it's a skilled performance.

[racer-x]

Ya, I know....

I'm still waiting for results from other posters in this thread. I'm curious to what they can do. In my opinion PDR got the best results so far..........

[budwzr]

Well, PDR has better software than us, so that's expected he's gonna jump in at the last minute with a winning hand.

[poisondeathray]

How's this "backlight fix" ?



This guy's got better hangtime, but he wasn't wearing a helmet... tsk..tsk..

EDIT: crap ... he's flipping the wrong way





Racer - any stunt/tricks victories in your trophy case? Or were you mostly motorbike racing ?

[racer-x]

Nah, I mostly Drag Raced on the Track and street. I've been quite successful however and I'm pretty happy to say that I did all my own work on the motors and chassis. I even got my real name in a national magazine.......

Here's just some of my Trophy collection:

[MartinMtb92]

poisondeathray: Wow that slowmo clip you did thats was just what i looked for now the focus really is on me and the bike thanks alot dude! Will be editing an video of me of summer 2014 soon i will post a link on it later for you guys to see!

[smrpix]

I even got my real name in a national magazine.......

Here's just some of my Trophy collection:

Wait! YOU'RE Rex Racer?

[budwzr]

Dang, Peed came up from the rear and got his nose across the finish at the last minute.