The "-h" option for dcraw_emu, which sets the half_size flag on imgdata.params, seems to only work for certain files or camera models -- is this by design? In particular, at https://github.com/LibRaw/LibRaw/blob/master/src/libraw_cxx.cpp#L3033-L3037, it looks like the half_size flag is only obeyed if filters is nonzero. I am not familiar enough with the code to understand when or how it gets set to something nonzero, so I'm hoping that someone here can help shed some light.

Hello.

I am trying to compile my software to Windows with the Mysys2 package manager. Everything is going right but one function.
Indeed, I was using libraw_open_file for my whole app but on Windows it crashes. So I tried to use libraw_open_wfile as defined in the documentation. But I have the following message:

warning: implicit declaration of function 'ibraw_open_wfile'; did you mean 'ibraw_open_file' ?

I went throug the include file and I saw these lines:

Hello! I have some problems when open photos from:
Canon PowerShot G1 X,
Canon PowerShot G5 X,
Canon PowerShot G7 X,
Canon PowerShot G7 X Mark II,
Canon PowerShot S120,
Canon PowerShot S130 IS.

There is a vignette effect on every photo made by this cameras.
(Photo from http://www.rawsamples.ch/index.php/en/canon).

Tried v 0.18.6 and built libraw from master, but it didn`t solve the problem.

For example, OpenCV 3.3.0 opens this files correctly.

Hi,

I have found two Nikon Coolpix B700 RAW files on the web that give strange colors with libRaw 0.8.16. When I try to open these files with Adobe Photoshop or Preview.app on Mac OS X, colors are ok.

I send you these files by WeTransfer right now.

Thanks.
Eric

Hello,

I have been using libRaw 0.15.4 (Windows 32bit) in my application since 4 years. Recently, we received some CR2, NEF and IIQ files that libRaw 0.15.4 was not able to process correctly (strange colors rendering or errors on opening). I decided to upgrade to a recent version of libRaw, so I tried libRaw 0.18.15 and 0.18.16 and it seems that most problems have gone away except some IIQ files that cannot be opened (while libRaw 0.15.4 worked well on these files).

I try to open these files with this simple code :

LibRaw rawProcessor;
in result;