New project: camera color profile calculation

mkmenuts

Hello ArtDen,

I put the SD700 calibration pix (JPG + CRW, plus 2 extra ones for verification) in:

http://www.zshare.net/download/74191278bd1158/

Thanks in advance,

mkmenuts

P.S. - Is that calibration matrix CCD dependent only (which means several cameras share the same one), or are there more variables involved?

ArtDen

mkmenuts, I will try to calculate color matrix this evening. Color matrix, calculated for your SD700 is usable for all other SD700 cameras 😀

rockets

@ArtDen, congratulations for the project.
Here: http://www.filefreak.com/pfiles/40442/Canon%20A630.rar, you can find a shoot taken with a Canon A630 camera.

ArtDen

mkmenuts, rockets, sorry for delay. I will try to process your images at the weekend

Titan_G9

hello ArtDen,

Here: http://www.zshare.net/download/7538015cc938a1/ 40MB you find 3 images with raw (.cr2) taken by a G9.
I hope you can use it.

Cheers

ArtDen

Matrix for SD700 was added. Can't calculate matrix for A630 as colors are oversaturated.

ArtDen

I find no sense to convert G9 RAW files with dng4ps2 as they already contain good EXIF info, good color matrix and can be processed by native software or other RAW software (RawTherapee for example)

rockets

@ArtDen here: http://www.filefreak.com/pfiles/40442/Canon%20A630%20II.rar, you can find two new shots.
*For the first shoot i change to neutral color.
*Second shoot I set exposure compensation to -1.

rockets

Sorry for double post but I can not edit the last one.

I installed my old Eizo CRT and I took another set of shots. I see a big difference between crt colors and lcd colors. Here: http://www.filefreak.com/pfiles/40442/A630%20w%20crt.rar, you can find the last shots with the descriptions in the archive.

vit40

ArtDen, are there any chances for DNG4PS2 with possibility to modify matrix ?
I don't need any graphical interface, it would be enough for me to have all matrices in one text file, for example in format

A610 n1 n2 n3 ... n9
A620 n1 n2 n3 ... n9
A630 n1 n2 n3 ... n9
etc ...

PhyrePhoX

is http://dng4ps2.chat.ru/ down at the moment? cant connect to it. and yes, i can visit other russian sites.

Cor

I am new to RAW files, but the beauty in RAW files for me is that no in-camera manipulations has been done. The in-camera de-noising and color manipulations are the main reasons for me to shoot RAW.

If you compare jpg with RAW and make an "colour matrix", an important point of shooting in RAW is lost.

Or am I missing the point?

ranocchio

vit40
ArtDen, are there any chances for DNG4PS2 with possibility to modify matrix ?
I don't need any graphical interface, it would be enough for me to have all matrices in one text file, for example in format

A610 n1 n2 n3 ... n9
A620 n1 n2 n3 ... n9
A630 n1 n2 n3 ... n9
etc ...

yes, it would be a great feature

thank you ArtDen for all your work

ArtDen

Added matrix for A630

lks

ArtDen,

Any chance of sending the matrices back to Dave Coffin so that they get integrated into dcraw?

ArtDen

lks, these are approximate matrices, not precise. I think they will be corrected many times in future. So I don't want Dave Coffin to include theirs into DCRaw.

mkmenuts

ArtDen,

Thank you, thank you, thank you!

With the new DNGs I get much better skin color (once the white balance is done right).

Now I just need an easy way to combine denoising with demosaicing (a-la DXO 5) to really be able to print my ISO 800 shots.

Thanks,

mkmenuts

lks

Why not just use RawTherapee or some other raw converter?

mkmenuts

Why not just use RawTherapee or some other raw converter?

I'm actually trying out Raw Therapee, seems quite good... I'm looking for a demosaicing algorithm that effectively reduces noise (or at least doesn't amplify it beyond film-grain like appearance).

I will next look at RAWHide (got a hint at the forum), we'll see.

mkmenuts

Cor

RE:
I'm actually trying out Raw Therapee, seems quite good... I'm looking for a demosaicing algorithm that effectively reduces noise (or at least doesn't amplify it beyond film-grain like appearance).

mkmenuts

At first I thought the same about Raw Therapee. After comparing it with other programs, I now think what you see is the raw picture, without ANY de-noising done. It conserves ALL details in this way. You can aply de-noising any time you want it afterwards.

Cor

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