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I want to do a HDR timelapse.

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Offline vonfilm

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I want to do a HDR timelapse.
« on: 18 / September / 2010, 18:38:36 »
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I have used   CHDK to make some time-lapses and I have used it to make HDR's in Picturenaut with shots I have taken using CHDK continuous bracketing with the A570 IS's custom self timer. Now I would like to combine these to take a HDR timelapse.

What I am wondering is how I can process hundreds or thousands of bracketed images to make the HDR's to make into a time-lapse video. I have been using the free program MakeAVI to make my time-lapse videos. I am hoping that I can find other free programs to aid me in HDR batch processing.

Can anyone tell me how to proceed?

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Offline fudgey

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Re: I want to do a HDR timelapse.
« Reply #1 on: 19 / September / 2010, 04:02:26 »
Depending on what you mean by HDR, enfuse might be useful to you as it's a command line utility and as such could be wrapped in a shell script that always gives it the next N images for processing.
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Offline vonfilm

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Re: I want to do a HDR timelapse.
« Reply #2 on: 19 / September / 2010, 17:55:52 »
I downloaded the trial version of Photomatix. I will try to use it's batch mode to process a timelapse of 3 bracketed shots.

I found this explanation of Photomatix batch mode:

http://timelapseblog.com/2009/12/03/hdr-time-lapse-photomatix-batch-processing/

I will see how this works.
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Offline vonfilm

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Re: I want to do a HDR timelapse.
« Reply #3 on: 20 / September / 2010, 11:31:07 »
On Sunday I took a time lapse off of my front porch with lapse.lua(Yet another Accurate Intervalometer) and used continuous bracketing with the camera's custom self timer set to 0 delay and 3 shots varying by 1 EV. I used the Photomatix trial version in batch mode to render the HDR's and Virtualdub with MSU anti-flicker plug-in to compile the video and save an avi file.

The timelapse came out very well and I will try to post it soon. Now I just need to shoot a more interesting scene.
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Offline cybercom

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Re: I want to do a HDR timelapse.
« Reply #4 on: 23 / September / 2010, 22:47:04 »
It will be very interesting to see the results of a longer video. With stills, the minor changes between 3 consecutive frames are usually blended enough to be (mostly) unnoticeable. When you start to process hundreds of frames, there may be some artifacting. Does the MSU plug-in clean this up satisfactorily? Looking forward to seeing the results when there is movement (pans, tilts, zooms) in the video.
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Offline vonfilm

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Re: I want to do a HDR timelapse.
« Reply #5 on: 25 / September / 2010, 11:59:50 »
How does one do pans, tilts and zooms in a time-lapse video?
« Last Edit: 25 / September / 2010, 17:42:06 by vonfilm »
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Offline vonfilm

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Re: I want to do a HDR timelapse.
« Reply #6 on: 26 / September / 2010, 12:23:51 »
Here is a link to my first HDR time-lapse on Youtube:

HDR Timelapse of Intersection using CHDK on A590 IS
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