Unlock the power of ImageMagick to HDRI

My primary motivation to do this has been to use ImageMagick for Fast Fourier Transforms, which have a myriad of applicability in image processing and filtering

First, you have to install perlmagick. Using apt,

 sudo apt-get install perlmagick  

Then the perl libraries

 sudo apt-get install libperl-dev  

Install the rather magnificent fftw libraries

 sudo apt-get install libfftw3-dev fftw-dev  

wget the source code, untar, move it, cd home

 wget ftp://ftp.imagemagick.org/pub/ImageMagick/ImageMagick.tar.gz   
 tar xvfz ImageMagick.tar.gz   
 mv ImageMagick-6.6.0-8 $HOME  
 cd $HOME/ImageMagick-6.6.0-8   

Install (see here for instructions)

 make distclean   
 ./configure --enable-hdri LDFLAGS='-L/usr/local/lib -R/usr/local/lib'  

see also here for a bug fix, and also see here for instructions

make & sudo make install
make check


To see whether the fft commands are working properly, you could issue the following:

 if [ -s lena.png] #check to see if the file exists  
 then  
 # do fft and ifft roundtrip  
 convert lena.png -fft -ift lena_mp_roundtrip.png  
 else  
 #first download  
 wget http://optipng.sourceforge.net/pngtech/img/lena.png  
 #then convert  
 convert lena.png -fft -ift lena_mp_roundtrip.png  
 fi  

see here for further information on fft transforms with, and watch your world spin faster