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Messages - a1ex

#8326
Photo DNGs converted from CR2 are roughly twice as fast in ufraw here :D
#8327
Raw Video / Re: 500D raw video
July 12, 2013, 04:07:40 PM
Doesn't work from regular nightly builds?

(didn't try)
#8328
Hint: we are not Canon.
#8329
Raw Video / Re: 5d3 Raw Video Has No Audio
July 12, 2013, 02:58:40 PM
It's hard, lookup my previous posts.
#8330
Nope, this is used for display only (e.g. to compute underexposure thresholds, stuff like that).
#8331
Ah, I've researched that here: http://www.magiclantern.fm/forum/index.php?topic=1915.msg23797

and the sensor is polled periodically during a long exposure (2-3 times per second iirc), but I couldn't find any EDMAC activity.

I thought you want to preview the motion blur, and for this, link FPS override with shutter speed, play with it, and when you are ready, snap the picture.
#8332
Raw Video Postprocessing / Re: raw2exr in Linux
July 12, 2013, 07:47:53 AM
"make raw2dng" should work without asking for a cross-compiler, though I didn't try to delete mine :D
#8333
Yes, put an interpolated ISO 100 value, because all my other code assummes that.
#8334
Raw Video / Re: 5d3 Raw Video Has No Audio
July 12, 2013, 07:41:41 AM
It didn't sync at 25fps either. It just happened for one particular case (it's pure luck).
#8335
Use FPS override.
#8336
Because everybody has write access?
#8337
Neither in parallel and nor in a predictable succession.
#8338
Feature Requests / Re: Audio for a few seconds
July 11, 2013, 02:48:33 PM
No, unless you have a skill level 10x above g3gg0 ;)

(it may be possible to hack something that seems to work, but I'm talking about doing it right, without side effects)
#8339
Raw Video / Re: 60D RAW video - it's working !!!
July 11, 2013, 02:43:14 PM
Come on, 16-bit output is easy, use an array of unsigned short, copy the image data, then reverse the bytes.

Or, you can interpolate the bad pixels in raw2dng. A previous implementation did that, but it needs some extra care for blobs of bad pixels.
#8340
Camera-specific Development / Re: Canon 1100D / T3
July 11, 2013, 09:24:40 AM
What about trying to press the arrow keys?
#8341
Raw Video / Re: 60D RAW video - it's working !!!
July 11, 2013, 09:05:17 AM
Just try to focus better and you'll see ;)
#8342
Raw Video / Re: 60D RAW video - it's working !!!
July 11, 2013, 07:47:22 AM
Again, lv_af_raw is raw data with an edge detection filter applied on it. You don't want to record it.

You can remove bad pixels, but you can't remove lv_af_raw artifacts.
#8343
You can ignore that one. There may be surprises when doing bracketing (either slowdown, or some settings failing to change, or nothing noticeable at all).
#8344
Most of the time I'm too lazy to adjust colors in my photos, so I wrote a script that does this exactly the way I want. It gets roughly 80-90% of pics just right for my taste; for the others I can do manual adjustments.

The script is a few months old, so it was fine-tuned over the time. It's similar to the "Post Deflicker" feature from ML, but optimized for regular photos, not for timelapse.

What it does:
- applies exposure compensation to all photos (so the end result looks consistent)
- performs shadow and highlight recovery, with the "HDR from a single RAW" tonemapping trick and enfuse

Download: uniform_exposure.py or browse the Mercurial repository.

Usage: look in the comments. There are no command-line params; edit the script to tweak stuff.

Dependencies: python, numpy, dcraw, ufraw, enfuse and ImageMagick.

Sample photo developed with the script, from this DNG, without any post-processing after running the script:



How I've got that DNG, I'll tell you later these days.

Caveats:
- By default it develops at half-res, for speed. To use full resolution, set --shrink=1 instead of 2.
- I use a modified ufraw, so you may not get exactly the same result for this sample DNG.
- I didn't try it for timelapse. It may flicker a bit more than ML post deflicker, but you can try it.
- Don't expect it to be a speed demon. It will spend several seconds on a raw file. So, first select your shots that you want to keep, then fire the script and let it crunch your pics.
- For Windows, see this step-by-step guide.

Tips & tricks:
- To re-develop a picture with different settings, just delete that jpeg and run the script again.
- You can use any kind of raw files recognized by dcraw (not just Canon). I've tried only CR2 and DNG.

You can post sample pics here, I'd like to see how well it works for you.

Enjoy!
#8345
There is zero flicker with current ramping method if you use a good raw processor.
#8346
FYI, FPS override changes the number of images per second, not the resolution.
#8347
Tutorials and Creative Uses / Re: Kindle aware
July 10, 2013, 10:41:31 AM
One can render the PDFs with a different page size, so it shouldn't be hard to do. The BMP help screens were obtained by doing just that.

(you are talking about ML user guide, right?)
#8348
Raw Video / Re: No EXIF!!
July 10, 2013, 08:35:44 AM
It's on the todo list, but it will take a while. It requires redesigning the raw file format.
#8349
Raw Video / Re: No EXIF!!
July 10, 2013, 12:57:59 AM
Post a DNG with exif and one without.

And also something that looks like crap because the raw developer didn't know the ISO. Then, set ISO with exiftool and show the improvement.
#8350
General Chat / Re: Where is A1EX?
July 09, 2013, 08:03:15 PM
Quote
The guy with the clean pattern free shadows?

Cleaner than this?