This How-To explains how to setup Jarek Sacha's ij-dcraw plugin on MacOsX.

* Download latest ij-dcraw plugin from: http://sourceforge.net/projects/ij-plugins/files/ij-dcraw/v.1.3.0/ The ij-dcraw_native-bin-linux_1.3.0.r1302.tar.gz file will unzip to:

/ij-dcraw_native-bin-linux_1.3.0.r1302

  |-ij-dcraw_.jar
  |-dcraw
  |---dcraw
  

* Copy ij-dcraw_.jar and the dcraw folder into your ImageJ plugins folder, so that you end up with:

/plugins

  |-ij-dcraw_.jar
  |-dcraw
  |---dcraw

* Download latest dcraw utility compiled for MacOSX from: http://www.insflug.org/raw/Downloads/ dcraw-MacOSX.tgz unzips to:

/usr

  |-share
  |-bin
  |---dcrawx86
  |---dcrawU
  |---dcrawG5
  |---dcrawG4
  |---dcraw.1
  |---dcraw

* Now replace the content of your ImageJ/plugins/dcraw/ folder by the content of the bin folder, so that you end up with:

/plugins

  |-ij-dcraw_.jar
  |-dcraw
  |---dcrawx86
  |---dcrawU
  |---dcrawG5
  |---dcrawG4
  |---dcraw.1
  |---dcraw

* Restart ImageJ. Open a raw camera file using: [ImageJ/plugins/Input-Output/DCRaw Reader…] command.