I thought I had found CFA_PATTERN in imgdata.rawdata.iparams.cdesc, but it appears that field is used for the general description of the chip. I don't seem to be able to find the CFA_PATTERN equivalent.
Thanks.

AsShotNeutral tag is converted to camera 'As Shot' white balance: imgdata.color.cam_mul[]

RawDataUniqueID is not parsed by LibRaw

Fixed and pushed to github repo: https://github.com/LibRaw/LibRaw

Thank you again for pointing to the problem.

Hi, here is my little software (Freeware) using LibRaw: TOMYO TiltShiftEasy - http://www.tomyo.org/TiltShiftEasy.php - a small and easy to use tool to create tilt-shift photo effects. I'm using LibRaw because the compatibility with the various RAW formats is outstanding, besides the project comes with clean/working Visual Studio solution (i really appreciate that). Thanks to all LibRaw developers!

Hi Alex,
1] yes it is clear for me, but must be some reference point for white reconstruct point where camera measure rgb values. It is possible get this reference point from LibRaw? I have function which get CCT from XYZ and I need some reference point from camera to get this white point reference.

and one other question.
2] What is different between pre_mul and cam_mul arrays?

For me working pre_mul as camera temperature setting. I am using matrix

for(int row=0; row < 3; row++)
{
for(int col=0; col < 3; col++)
{
cam2RGB[row][col] = rgb_cam[row][col] * pre_mul[col];
}
}

than multiply all RGB values for each pixel

int correction_R = cam2RGB[0][0] * pixel_R[col] + cam2RGB[0][1] * pixel_G[col] + cam2RGB[0][2] * pixel_B[col];
int correction_G = cam2RGB[1][0] * pixel_R[col] + cam2RGB[1][1] * pixel_G[col] + cam2RGB[1][2] * pixel_B[col];
int correction_B = cam2RGB[2][0] * pixel_R[col] + cam2RGB[2][1] * pixel_G[col] + cam2RGB[2][2] * pixel_B[col];

cam_mul working too but image is without color cast and image is not same as in other image editors.

Thanks Ladislav

Thanks for reply.

reformulate 3] Camera must calculate white balance coefficients from some RGB raw values. It is possible get from LibRaw these RGB values?

Thanks

Hi Alex,

Can I have some questions to you:

1] When I want convert RAW image to XYZ color space I multiply rgb_cam * cam_xyz * RAW pixel?

2] Does LibRaw contain parameters of camera temperature? Or is there some way how reconstruct this value from camera?

3] Is possible reconstruct from Libraw parameters RAW pixel values where camera measure white balance coeficients?

Thank you Ladislav

Thank you!
I've seen the field LIBRAW_WARN_FALLBACK_TO_AHD in LibRaw 0.17.
I suppose that testing (imgdata.process_warning & LIBRAW_WARN_FALLBACK_TO_AHD) after processing will allow one to display a warning.

Noted, my code converts all bitmap thumbs to jpg.

I was blocked for some reason, so I was never able to post an example of the thumbnail I pulled:
https://drive.google.com/file/d/0B572ihVmygYtZW5PcTlHMHdyOG8/view

I updated to the latest and see the same artifact. Is the thumbnail processed properly for you? No additional steps necessary to handle it as opposed to other bitmap thumbnail formats (which work for me)?

I pulled these from a forum topic for testing:

http://s3t.it/data/uploads/rt_kodak_dcs_14nx_raw_photodesk.zip