Wednesday, September 06, 2006

Home Again

So, I returned safely from 4 weeks of dives, hiking attempts, helping the revolution and tanning on the beach of luxury hotels (without actually staying at them, but at better places instead...). Now I face the threat of converting about 1000 Photos from RAW to something readable, of selecting a couple of them for the web, some more of them to show to friends and to actually get some friends to see them... (I might use bribery for the last task, some food and wine always helps to get people interested in slide shows ;-))

[Starting Computer and Photo babble now, non-geeks please skip the following]
To convert the RAW files to JPGs, I am experimenting with various methods, all involving dcraw. I am still a bit undecided which gives the best results, but the third method looks nice on my screen most of the time, although sometimes a bit on the blue side... I have put some sample images below, all taken at Lusco Fusco in Erlangen at 2nd of Septembre.

Method 1
dcraw -a -c foo.CRW | ppmtojpeg > foo.jpg

Method 2
Inspired by this webpage:
dcraw -a -4 foo.CRW ;
convert -normalize -gamma 1.8 foo.ppm foo.jpg ;

Method 3
Using an ICC color profile for an EOS 10D camera, which uses a similar sensor as my EOS 300D and as found here:
dcraw -4 -c -w -m foo.CRW | pnmnorm -bpercent 0 -wpercent 0.1 -brightmax | pnmtotiff -truecolor >temp.tif;
tifficc -w -i eos10d-linear-8apr2004.icc temp.tif foo.tif;
convert foo.tif foo.jpg ;

dcraw only.
dcraw to 16bit pnm, normalizing, converting to JPG
dcraw to 16bit tif, applying ICC profile and converting to JPG

dcraw only
dcraw and normalize
dcraw and ICC profile

dcraw only
dcraw and normalize
dcraw and ICC profile

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