Author Topic: Dual ISO - massive dynamic range improvement (dual_iso.mo) (Read 2272427 times)

1% · « **Reply #1425 on:** October 22, 2013, 08:46:20 PM »

ubuntu's RT is really old, I had to add a PPA or get it straight from them.

a1ex · « **Reply #1426 on:** October 22, 2013, 08:53:40 PM »

Here's another snapshot. Should fix the crash, and also has some different tuning parameters.

cr2hdr-amaze-edge2.exe

If you find anything that looks better with the previous one, upload a DNG.

1% · « **Reply #1427 on:** October 22, 2013, 09:16:20 PM »

My previews broke on 6D

... b/d errors on most frames and then very small 1/2 height preview on very large iso ranges, eg 100/6400
EOSM too, no B/D errors but 1/2 height.

The cr2hdr is now crash free... its cranking away on a folder. AVG 6 - 7 seconds to complete the debayering.

a1ex · « **Reply #1428 on:** October 22, 2013, 09:52:23 PM »

Yeah, that preview looks interrupted from half-shutter.

Try shooting in single mode (not continuous), since it doesn't check half-shutter there.

1% · « **Reply #1429 on:** October 22, 2013, 09:57:38 PM »

All in single mode.

a1ex · « **Reply #1430 on:** October 22, 2013, 10:04:44 PM »

Can you check whether is_continuous_drive() works properly? (should return 0 in single mode).

Or, undo the cache tricks (revert 283c1f2) to see if it solves anything.

1% · « **Reply #1431 on:** October 22, 2013, 10:16:59 PM »

Looking at auto ETTR, continous silent is detected properly but must be returning 0 for normal continuous and everything else since I don't see the warning.

a1ex · « **Reply #1432 on:** October 22, 2013, 10:26:05 PM »

Then, it's probably the cache or lack of vsync. On 5D3, if I comment out the msleep from the undo hook, I get two windows of preview (one at the top and the other at the bottom); in the middle, I get interlaced data (already undone). So there's some processing going in parallel, I guess.

Marsu42 · « **Reply #1433 on:** October 22, 2013, 11:21:23 PM »

Quote from: a1ex on October 22, 2013, 08:53:40 PM

If you find anything that looks better with the previous one, upload a DNG.

Ok, it's not crashing anymore - and I've got a sample right away, I'll pm you the link as it 's for debugging only.

Look at the white spot, the amaze interpolation leaves less artifacts and is better at reconstructing the fur. This is great news for me since I already had the problem with line/dot artifacts in areas before that are clipped in one of the dual_iso exposures, I can send you another sample of this artifact type if you want it.

1% · « **Reply #1434 on:** October 22, 2013, 11:27:42 PM »

What it does to the noise is phenomenal. Much cleaner output overall.

EOSM and 6D preview are identical though and both of these are using the same hook now. EOSM doesn't have the b/d detection problem I think.

CR2 is uploading.

Marsu42 · « **Reply #1435 on:** October 23, 2013, 12:01:22 AM »

Quote from: 1% on October 22, 2013, 11:27:42 PM

What it does to the noise is phenomenal. Much cleaner output overall.

I have to say I'm also AMaZEd how good this works by now concerning sharpness & noise. When I first read about it I thought "well, yeah, there have to be a lot of downsides to it" - but there aren't! Except for processing time & the need to keep the original cr2 around, meaning 2x the data storage, 3x if you have backups - but that can't be helped.

kgv5 · « **Reply #1436 on:** October 23, 2013, 01:26:33 AM »

Could we somehow use this method (i mean this new quality) for dual iso raw video?

1% · « **Reply #1437 on:** October 23, 2013, 01:48:31 AM »

I think that would already work with the bin provided.

Nang · « **Reply #1438 on:** October 23, 2013, 03:20:08 AM »

Hey guys, anyone using cr2hdr.exe for video via 5d3 ever get the "The filename or extension is too long" error? It worked fine for two of my DNG folders, but now I keep getting this error. Is it because there are too many dng files being dropped on it?

Thanks in advance

***EDIT -- please ignore above... I ended up dragging and dropping half of dng's at a time in the folder. Working fine now... silly me.

Legushka · « **Reply #1439 on:** October 23, 2013, 08:48:06 AM »

need help, who can come across.
two computers. is winXP. both are not open DNG format.
here the original https://dl.dropboxusercontent.com/u/13183292/dualISO/2013/10/2121/IMG_2690.CR2
Here the resulting DNG https://dl.dropboxusercontent.com/u/13183292/dualISO/2013/10/2121/IMG_2690.DNG
that's how I see DNG (print screen). https://dl.dropboxusercontent.com/u/13183292/dualISO/2013/10/2121/printscreen.JPG

a1ex · « **Reply #1440 on:** October 23, 2013, 08:53:20 AM »

Known bug. Ignore the jpeg preview.

kgv5 · « **Reply #1441 on:** October 23, 2013, 09:09:04 AM »

i am having problems with newest cr2hdr, I have downloaded cr2hdr-amaze-edge2.exe but drag and drop doesnt work. I have downloaded also dcraw, put it in the same folder, nothing. When i use command line and type all by hand it tells that DNG doesnt look like interlaced - but it surely is.

Normally I am using rawanizer with some new raw2dng, it works and deinterlaces dual iso footage but i wanted to try those newest solutions. Thanks

a1ex · « **Reply #1442 on:** October 23, 2013, 09:11:10 AM »

See here: http://www.chiark.greenend.org.uk/~sgtatham/bugs.html

haeki · « **Reply #1443 on:** October 23, 2013, 11:51:42 AM »

I got the same problem as kgv5.

Material was filmed with iso 100 and iso 1600. .RAW was converted to DNG with RAWMagic 1.0 beta 7b. The cr2hdr package was installed and after that I tried to convert the dng-dual-isofiles to cr2, but it didn't succeed. For me it looks like cr2hdr is temporary creating a cr2-file but then deleting it, because right before it finishes there is a .CR2 which is automatically deleted.

I'm on a Mac 10.8.5
cr2hdr is version 1.4

Any suggestions?

Before:

After:

a1ex · « **Reply #1444 on:** October 23, 2013, 12:05:23 PM »

Are you sure you have used dual ISO?

haeki · « **Reply #1445 on:** October 23, 2013, 12:16:16 PM »

Yes, I'm pretty sure. Both modules (raw and dual iso) are on in the modules-menu. I got them both turned on in the movie-menu. It shows Iso 100/800 on the lcd and it's also changing from 100 to 800 while recording and as you can see in the screenshot of the folder there is one dark frame and one bright frame. The only thing I am a bit curious about is that there are two bright frames at the beginning 00000 and 00001.

a1ex · « **Reply #1446 on:** October 23, 2013, 12:23:44 PM »

From your description and screenshot, I'm pretty sure you didn't.

You used HDR video, which is a different beast.

haeki · « **Reply #1447 on:** October 23, 2013, 12:43:48 PM »

Quote from: a1ex on October 23, 2013, 12:23:44 PM

From your description and screenshot, I'm pretty sure you didn't.

You used HDR video, which is a different beast.

Sorry, my fault! That was a stupid one, thought HDR-video was dual iso...

glubber · « **Reply #1448 on:** October 23, 2013, 02:08:58 PM »

I'm really AMaZEd!

Below is a shot i nearly lost hope on, but somehow i knew someday a1ex gonna fix it!

The 2nd one from left was developed with ufraw at default. Most right was tonemapped with Photomatix to gain some contrast on the helicopter.
With those on the left i fiddled for hours on any raw developer i could get hands on just to see if there is at least some details in the sky.
I expected there would be just a near white canvas behind a black spot.

Link to CR2: https://dl.dropboxusercontent.com/u/90483500/DUAL-ISO/DUAL6183.CR2

a1ex · « **Reply #1449 on:** October 23, 2013, 02:23:22 PM »

This one is really hard because there's little or no overlap between the two exposures. What ISO did you use?

I've got a good DNG by forcing ISO 100/3200, but the autodetection doesn't work. I'll keep it as a test case, since I want to try to autodetect ISO and bright/dark fields from histogram analysis.

News:

Author Topic: Dual ISO - massive dynamic range improvement (dual_iso.mo) (Read 2272427 times)