Recent comments

Reply to: Canon CR3 dual pixel image extraction   5 months 3 weeks ago

What exactly are you doing and how and what are you failing at?

Reply to: Identify() function working   6 months 4 days ago

ARW files are really TIFF(like)-containers, so all ARW-specific code is specific tag values parsing/assignment to internal data structures.
The main analysis is common to all tiffs.

Reply to: Canon R6 mark II CR3s converted to FITS incorrectly   6 months 1 week ago

Please check with Adobe DNG Converter and select files that processed OK by this program, but damaged in LibRaw.

Reply to: Canon R6 mark II CR3s converted to FITS incorrectly   6 months 1 week ago

>> 1st: R6 Mark II is not supported yet
I know and I mentioned in my original post

I do not doubt that libraw will support R6 Mark II sooner or later that is why I am ready to provide sample files and take part in testing if needed.

>> 2nd: your 2298 file is damaged
Probably it is and there are many other files from my R6m2 damanged in same way.
I mention "probably" because it looks strange:
* other software (DXO PureRaw, Adobe Photoshop, FastStone Image Viewer) works with this file fine
* I took and processed thousands of images from this camera already and I got no issues until I tried to take astro images and load in into Siril
* I have many more samples of random files from the camera that are "damaged" (and could be processed fine with other software).

So, let me know if you need file samples.

Reply to: Canon R6 mark II CR3s converted to FITS incorrectly   6 months 1 week ago

1st: R6 Mark II is not supported yet

2nd: your 2298 file is damaged. Adobe DNG Converter also agrees with this: https://www.dropbox.com/scl/fi/s19zw6bylther2fvh6cyp/Screenshot-2024-03-...

Reply to: Using LibRaw with Adobe Camera Raw (photoshop plugin)   6 months 1 week ago

you can try to use FastRawViewer and see what per-channels multipliers "they" suggest ( that is assuming EasyHDR uses the same approach as FRV), then you can adjust as shot WB tag in DNG using exiftool or so and feed it to ACR/LR and use as shot WB there ... ___BUT___ the same colors of course is a different story because the whole color transform is more than just the WB ...

Reply to: Using LibRaw with Adobe Camera Raw (photoshop plugin)   6 months 2 weeks ago

Sorry, we're not responsible for Adobe apps. Please direct your request to Adobe's support

Reply to: Getting error while building Libraw in Qt in windows environment   6 months 2 weeks ago

yes, you probably need to add ws2_32 to your linker input.

Reply to: DNG with jpeg-xl compresseion   6 months 3 weeks ago

There is no reason to integrate w/ libjxl, because Adobe DNG SDK is already integrated (it is free and BSD-licensed, there are no reasons against using it).

Also, libjxl integration is not enough, such DNG files may need full opcode processing not only Stage1 (provided by LibRaw).

Reply to: Error while building libraw in QT   6 months 3 weeks ago

Try to remove
QMAKE_CXXFLAGS+=/MP
(Visual Studio specific flag)
from buildfiles/libraw-common-lib.pro

Reply to: DNG with jpeg-xl compresseion   6 months 3 weeks ago

Is there a reason for using the DNG SDK instead of directly integrating with libjxl?

Would a pull request that attempted to support the libjxl path instead as an option be accepted, just like libjpeg8 is an optional library?

I'm thinking of taking a crack at support via libjxl, but don't want the effort to be redundant.

Reply to: Z 9 HE/HE* formats support plans   6 months 3 weeks ago

happy to provide any Z9 RAW file samples if you need them.
Thanks for the great project.

Reply to: did 4channels loose the -N option?   7 months 2 days ago

You're right (previous reply deleted), -N is not handled in code. To be removed from help line in future release.

Reply to: Hasselblad 3FR opens black   7 months 1 week ago

Thanks - I will recheck.

Reply to: Hasselblad 3FR opens black   7 months 1 week ago

The file also contains absolutely black preview.
Adobe DNG Converter converts it to absolutely black DNG file.
zip compresses it into 300k zipfile (1:100 compression ratio)

Are you sure the file is not completely black, but contains some image?

Reply to: DNG with jpeg-xl compresseion   7 months 2 weeks ago

1) We're aware
2) Yes it will be supported
3) It will be supported via Adobe DNG SDK Integration

Reply to: Z 9 HE/HE* formats support plans   7 months 3 weeks ago

There is a FFDShow add-on for the new JPEG-XS on GitHub, but I guess it won't read the .nef files. Or looking at it, might even introduce licensing problems? :-)

But how are you coming along? If you need sample files, I am happy to provide (Z8 files).

Reply to: Adobe DNG Gainmap support or extraction   8 months 4 days ago

Thank you very much for the reply. Hopefully this is what I'm looking for.
All the best.

Reply to: Adobe DNG Gainmap support or extraction   8 months 4 days ago

Assuming you're talking about OpcodeList#, not ProfileGainTableMap (introduced in DNG 1.6).

If LibRaw is compiled with Adobe DNG SDK: it is possible to process via DNG Stage2/Stage3 by specifying corresponding rawoption bits:

Process Stage2/3 only if OpcodeList2/3 present: LIBRAW_RAWOPTIONS_DNG_STAGE2_IFPRESENT,LIBRAW_RAWOPTIONS_DNG_STAGE3_IFPRESENT

Forced Stage2/3 processing: LIBRAW_RAWOPTIONS_DNG_STAGE2 and
LIBRAW_RAWOPTIONS_DNG_STAGE3

If one want to extract specific DNG/TIFF/EXIF tags: use exifparser_handler to setup own callback function.

Reply to: Libraw to be used for iOS app   8 months 3 weeks ago

Sorry, but I don’t understand what exactly your problem is.
.a files are meant to be (statically) linked to your application, what do you mean for "does not remain accessible"? Accessible for what?

In any case, you can build the library as a shared one

Reply to: libraw_internal_data access   9 months 2 weeks ago

Using any internal (non-documented) fields in a class may lead to a rewrite of your application when the next version of the library is released. We treat public/documented fields much more carefully (although there is no complete guarantee that they will never change).

However, internal fields are declared as protected:, not private: (specifically for the case you described), so you can implement your own derived class that will provide the necessary access from the outside

Reply to: LibRaw 0.21 supported cameras   9 months 2 weeks ago

GoPro cameras are supported for a long time via GoPro SDK + DNG SDK wrapper built in LibRaw.

We're not responsible for any Topaz product, please direct your questions to vendor support.

Reply to: LibRaw 0.21 supported cameras   9 months 2 weeks ago

Hello,
Is it possible or is it planned that go pro raw format gpr. could be processed by Topaz?
It would be great for uw photos :-)

Reply to: Leica Q3 support?   11 months 3 days ago

Thanks for the fast answer!

Some consideration:

LibRAW does support Leica M11 (triple sensor as the Q3, interchangeable lens), Leica Q, Leica Q-P and Leica Q2 (different sensor, fixed lens, and look like the lens iare the same in the Q series, but switching from one to another the behavior is different). Anyway all them use DNG, so I think that some differencies does exists. Probably (just my idea) that the M11 is very similar to Q3, but can't say this for sure.

In any case, without neither an entry of the Q3 in LibRAW (even if identical to M11), the software which uses the library can't understand what camera is and does not act consequently, forcing to manually select a "similar" lens/camera to proceed.

Also using Adobe DNG converter (without compression, of course) the converted file (Leica DNG to Adobe DNG) size is quite different, so I suppose that Leica DNG are in some way not equal to Adobe format.

I'm not an expert of raw file structure, but I believe that something is different.

Again thanks for your attention!

Denebola

Reply to: Leica Q3 support?   11 months 4 days ago

Leica records (standard) DNG files, is some specific support really needed for Q3?

Pages