RAW photo post processing

tmbigrigg · 06-01-2008, 11:12 AM

Not sure if this is where I should post this or not but here goes.
I have a Nikon d200 that I shoot in RAW (NEF) format, I am looking for a program and/or script that will automatically convert the RAW files into .jpg files and save three copies of the file. One color, one sepia, one black and white and then append the file names DSC_1000.NEF to match the colors. ie. DSC_1000_color.jpg, DSC_1000_sepia.jpg, DSC_1000_bw.jpg.

Any advise, help, pointers would be very much appreciated.

tmbigrigg@gmail.com

jlliagre · 06-01-2008, 11:40 AM

dcraw will help you doing the raw to jpeg part.
Processing can be done with imagemagick.

tmbigrigg · 06-03-2008, 03:40 PM

OK so I can use dcraw to convert the NEF (RAW) files to .JPG. and I can use the following command to convert to Sepia-Tone and black and white:
convert filename.JPG -sepia-tone 75% filename.sepia-tone.JPG
convert filename.JPG -colorspace Gray filename.bw.JPG

How can I use these commands in a script that will act on multiple filenames within a directory and/or directory tree. The following is an example of the directory structure that I want to work with. I would also ideally like to save the Sepia and Black and White JPGs in their own folders within the parent directory. The final result would be something where 2008-05-07, 2008-05-09 and 2008-05-15 would end up with additional directories for Sepia and BW created and the sepia and BW files moved into those directories.

2008-05-07
DSC_1000.JPG
DSC_1001.JPG
DSC_1002.JPG
DSC_1003.JPG
2008-05-09
DSC_1004.JPG
DSC_1005.JPG
DSC_1006.JPG
2008-05-15
DSC_1007.JPG
DSC_1009.JPG
DSC_1025.JPG

jlliagre · 06-03-2008, 06:09 PM

That might be something like:

Code:

for dir in ????-??-??
do
  echo "Processing $dir"
  (
    cd $dir || exit
    mkdir sepia-tone bw || exit
    set -- $(ls DSC*.JPG 2>/dev/null) >/dev/null
    for file
    do
      bn=$(basename $file .JPG)
      dcraw -c $file | cjpeg > $bn.jpg
      convert $bn.jpg -sepia-tone 75% sepia-tone/$bn.sepia-tone.jpg
      convert $bn.jpg -colorspace Gray bw/$bn.bw.jpg
    done
  )
done

Su-Shee · 06-04-2008, 07:30 AM

Or use PerlMagick; Image Magick has a Perl interface. (And several other languages...)