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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

EPIC HDR...

The EasyHDR™ does have a different motion blur characteristic... magic. The HDRx™ mode can go both ways, magic or more normal blur version with the help of Graeme and The Foundry.

We were out testing HDRx™ last night in downtown Las Vegas with Peter Lik (famous still landscape guy and crazy Australian) and all of us were in awe of what we were getting in the most demanding location.

Most motion HDR issues revolve around two separate exposure that are separated in time so motion of the combined objects are not connected... which is disturbing.

We'll post some footage here pretty quick if everyone can just hang in there for a few days.

Jim
 
Jannard said:
The EasyHDR™™ does have a different motion blur characteristic... magic. The HDRx™™ mode can go both ways, magic or more normal blur version with the help of Graeme and The Foundry.

We were out testing HDRx™™ last night in downtown Las Vegas with Peter Lik (famous still landscape guy and crazy Australian) and all of us were in awe of what we were getting in the most demanding location.

Most motion HDR issues revolve around two separate exposure that are separated in time so motion of the combined objects are not connected... which is disturbing.

We'll post some footage here pretty quick if everyone can just hang in there for a few days.

Jim
Click to expand...


I'm australian and i'm offended :)
 
Footy sweet Hdrx footy, alright.
 
Jannard said:
Most motion HDR issues revolve around two separate exposure that are separated in time so motion of the combined objects are not connected... which is disturbing.
Click to expand...

Since it's hard to imagine that you would be so excited about something "disturbing", is it safe to assume you're talking about the motion HDR issues of other techniques and not HDRx / Magic HDR?
 
Tim Nolte said:
Since it's hard to imagine that you would be so excited about something "disturbing", is it safe to assume you're talking about the motion HDR issues of other techniques and not HDRx™ / Magic HDR?
Click to expand...

Disconnected blended images is disconcerting. We aren't doing that.

See new recon post.

Jim
 
Jannard said:
Here is a chart and a quick ungraded pic...

Jim

1284304515.jpg
Click to expand...
this image looks more like 13 stops, every three tones it looks like it repeats the last one.
anyway it would be very nice to see an epic. looks cool, scarlet too
 
Giancarlo Morieri said:
this image looks more like 13 stops, every three tones it looks like it repeats the last one.
anyway it would be very nice to see an epic. looks cool, scarlet too
Click to expand...

Between white at the top and black at the bottom of the chart is an 18 stop value difference. This is a back lit calibrated chart.
 
Giancarlo Morieri said:
this image looks more like 13 stops, every three tones it looks like it repeats the last one.
anyway it would be very nice to see an epic. looks cool, scarlet too
Click to expand...

It may just be your monitor. On a semi-calibrated monitor, I can deffinitely see 18 stops quite distinctly.
 
dynamic range plot

dynamic range plot

It's interesting, if you look at the actual pixel levels along a single row of pixels, it looks more like 17 stops because the last two are hard to tell apart. However, by eye you can see a difference and see all 18 levels, probably since your eye can integrate over a larger area. I'm also sure that an 8-bit JPEG is not the right way to really analyze this.
 

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jbeale said:
It's interesting, if you look at the actual pixel levels along a single row of pixels, it looks more like 17 stops because the last two are hard to tell apart. However, by eye you can see a difference and see all 18 levels, probably since your eye can integrate over a larger area. I'm also sure that an 8-bit JPEG is not the right way to really analyze this.
Click to expand...

If the debate is between 17 stops and 18... :-)

Remember that we are compressing 16 bit data to an 8 bit jpeg for your enjoyment on a computer monitor.

We'll take it...

Jim
 
i can see 18 stops clearly on my standard home 27" imac
 
Thor Melsted said:
That's an optical illusion, due to the black stripe between the two.

Try moving them around in Photoshop.
Click to expand...

When someone made the same claim elsewhere, I decided to average each 8-bit-compressed bar and measure them in Photoshop. Here's the result:

245
221
201
186
171
155
143
122
100
84
70
56
50
42
34
29
26
24

Yes, they get pretty flat at the low end. But so what? It's called a tone curve, and it can be pretty arbitrary.
 
I don't think this will ever be on sale to the public, but still interesting:

University of Warwick (in partnership with SpheronVR, based in Waldfischbach-Burgalben, nearby Kaiserslautern, Germany) have built a 20-stop HDR video camera.
Currently 1080 resolution at 30 fps.
http://digital.warwick.ac.uk/goHDR/

Some colleagues were using it to film this weekend in Coventry.
 
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Jeff Kilgroe said:
Re: the lines on the chart... Last time a chart was posted that had some lines, they were said to be present within the chart.
Click to expand...

Yeah, and nobody mentioned them, until I posted and then I get jumped on. I guess the cause of the lines was obvious to most people the time last time round, or they just turned up as cheerleaders.. which was why I posted.. these lines don't look so bad actually, because they don't look like footage disabling noise in the shadows ;)
 
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