Recent comments

Reply to: preserving DNG brightness on conversion to RGB   2 years 3 months ago

Yes, this should(*) turn off auto-ETTR/auto-scaling, so this will result into dark(er) images.

(*) we're not responsible for AndroidLibRaw so not absolutely sure set....() calls works as expected.

Reply to: preserving DNG brightness on conversion to RGB   2 years 3 months ago

I use the unofficial Android port https://github.com/dburckh/AndroidLibRaw

openBuffer(bytes, bytes.size)
setAutoBrightness(false)
setAutoScale(false)
decodeBitmap(BitmapFactory.Options())

which should apply the options:
no_auto_bright = true
no_auto_scale = true

Reply to: preserving DNG brightness on conversion to RGB   2 years 3 months ago

Could you please clarify: you use LibRaw library from your application, or some LibRaw sample programs 'as is' (as a command-line utility)

Reply to: preserving DNG brightness on conversion to RGB   2 years 3 months ago

I'm also struggling with this. Can you point out which command do I need to use to turn it off?

Reply to: Get a proper 0.21.0 tag in GitHub?   2 years 4 months ago

It was tagged while creating release files downloads for this site, export script works on tags.

Github release was created on your request

Reply to: Get a proper 0.21.0 tag in GitHub?   2 years 4 months ago

Great, thank you. It looks like you tagged it earlier today. I use the cmake repo for building so the missing configure is not a big deal.

Reply to: Get a proper 0.21.0 tag in GitHub?   2 years 4 months ago

Already tagged: https://github.com/LibRaw/LibRaw/tree/0.21.0

Official release is available via this site download section: https://www.libraw.org/download

Github release has been created too: https://github.com/LibRaw/LibRaw/releases/tag/0.21.0
(although github release does not contain generated ./configure script)

Reply to: preserving DNG brightness on conversion to RGB   2 years 4 months ago

Auto-ETTR is performed on output stage, while converting from linear internal representation to gamma-corrected output in LibRaw::write_tiff_ppm or LibRaw::copy_mem_image

Reply to: preserving DNG brightness on conversion to RGB   2 years 4 months ago

Thanks. I tried different combinations of the options in the list you linked, but no luck.
Can you point me to where I can access settings for Auto-ETTR in the source code?

Reply to: Color Information - Documentation   2 years 4 months ago

rgb_cam is used to construct camera to output RGB matrix: https://github.com/LibRaw/LibRaw/blob/master/src/postprocessing/postproc...

Cmatrix is the same, it may be copied to rgb_cam if corresponding params option is set and the matrix is not empty: https://github.com/LibRaw/LibRaw/blob/master/src/metadata/identify.cpp#L...

Reply to: dcraw_emu fails with OM-1   2 years 4 months ago

Spot on! 0-21 works perfectly.
Thanks!

Reply to: dcraw_emu fails with OM-1   2 years 4 months ago

Could you use a more recent LibRaw version?

https://www.libraw.org/news/libraw-0-21

Reply to: preserving DNG brightness on conversion to RGB   2 years 4 months ago

You can run dcraw_emu without parameters, and also have a look at https://www.libraw.org/docs/Samples-LibRaw.html
On a side note, exposure is measured in lux seconds.

Reply to: preserving DNG brightness on conversion to RGB   2 years 4 months ago

anything I can do via options in the binaries? Any pointers on where to start would be great. Thanks.

Reply to: preserving DNG brightness on conversion to RGB   2 years 4 months ago

dcraw (and, so, LibRaw) standard processing is 'auto-ETTR', there are a lot of option to change it.

Reply to: LibRaw 202110 snapshot supported camera list   2 years 4 months ago

Does your software vendor tell you that your camera isn't supported because of LibRaw?
If so, have they tried to contact us?

Reply to: LibRaw 202110 snapshot supported camera list   2 years 4 months ago

> I’m assuming the next snapshot will add support for recently released cameras like Fuji X-T5, X-H2, Sony A7R5, etc
Please don't assume.

Reply to: LibRaw 202110 snapshot supported camera list   2 years 4 months ago

Sure, at our News section of this site.
For example: https://www.libraw.org/news/libraw-0-21

Reply to: LibRaw 202110 snapshot supported camera list   2 years 4 months ago

Are the release notes publicly accessible and do they offer a list of camera updates, by chance?

Reply to: LibRaw 202110 snapshot supported camera list   2 years 4 months ago

We plan to release 0.21-release this month.
Public snapshots are published every 7-9 months: https://www.libraw.org/#updatepolicy

Reply to: LibRaw 202110 snapshot supported camera list   2 years 4 months ago

Hello. Are you able to provide an estimate for when the next snapshot will be (I’m assuming the next snapshot will add support for recently released cameras like Fuji X-T5, X-H2, Sony A7R5, etc)?

Reply to: LibRaw 202110 snapshot supported camera list   2 years 4 months ago

I think you may suggest them to contact us, for a start...

Reply to: LibRaw 202110 snapshot supported camera list   2 years 4 months ago

1-4-6 beta definitely works. Does this mean that the GH6 .RW2 format will be supported in the next version? Is there an ETA on that?

If a company like Affinity is using LibRaw as a part of their developing engine, what can I do to let them know it is ready to be incorporated?

Reply to: LibRaw 202110 snapshot supported camera list   2 years 4 months ago

I get the error "File://( file name here) decoded with errors. Broken file or unsupported file format."

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