Java equivalent to Python's Imaging Library (PIL)
Can anyone point me to a PIL-like library that will work from Clojure? Thanks. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
Re: Java equivalent to Python's Imaging Library (PIL)
I'm interested too - got some ruby stuff using rmagick I'd like to rewrite - there's jmagick but it sounds like a pain to get it working on osx, and there's a library that wraps imagemagick command-line, but something native that supports: - 48 bits-per-pixel images - colour profiles - digital camera raw files (I can do this from the command line, again, but prefer not) ... would be good. Java Advanced Imaging seems to do some of this, but it's ugly, and the documentation seems uglier... - Korny On Thu, Mar 12, 2009 at 6:44 PM, Mark Engelberg mark.engelb...@gmail.com wrote: Can anyone point me to a PIL-like library that will work from Clojure? Thanks. -- Kornelis Sietsma korny at my surname dot com kornys on gmail, twitter, facebook, etc. Every jumbled pile of person has a thinking part that wonders what the part that isn't thinking isn't thinking of --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
Re: Java equivalent to Python's Imaging Library (PIL)
Mark Engelberg wrote: Can anyone point me to a PIL-like library that will work from Clojure? Hi Mark, We use clojure to handle the java-only ImageJ application and library. It's not what you'd call an industrial-strength library, but rather a dedicated practical application for scientific image processing. All file formats on Earth are supported. If you format is not listed, just use File - Import - Raw... and specify header size, data format, etc. to decode it into an image. While ImageJ ij.jar can be used independently, we wrapped it with clojure and many other libs in a package named Fiji, available at http://pacific.mpi-cbg.de There are numerous clojure examples here: http://pacific.mpi-cbg.de/wiki/index.php/Clojure_Scripting Upon download, you may want to replace the clojure.jar with a newer one, in the jars/ folder. The simple way to run the application is to invoke: ./fiji But it can run clojure scripts too: ./fiji path/to/program.clj And even launch a REPL: ./fiji --main-class clojure.lang.Repl Extra options are given as: ./fiji -cp /some/extra/file.jar:/some/other.jar -Xincgc path/to/program.clj See ./fiji --help for more options. Albert -- Albert Cardona http://albert.rierol.net --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
Re: Java equivalent to Python's Imaging Library (PIL)
Hi Michael, This looks really interesting. One thing I noticed, though, is that the page links to clojure.sourceforge.net as the Clojure web site. Although that does redirect to the correct place (clojure.org) it could give people the false impression that Clojure is still hosted on Sourceforge. (Yes, I know it's a Wiki, but it's easier to reply to your message than to create yet another account on yet another web site just to make one minor change.) Thanks, I've updated the links. By the way, I've never used ImageJ, but would be interested to know why you say it is not what you'd call an industrial-strength library. Because ImageJ's ij.jar became a library long after being just an application. There is no concept of MVC, and thus GUI classes are mixed with processing and controller constructs. What's worse, most plugins operate on the concept of the active image, which originally was the image contained on the selected image window--but any image on which one calls .show() will become the active image, which can happen anytime ... from any plugin, and different for each. Also, the sin of keeping unsafe internal state is committed in numerous places, particularly affecting the dialog's default values (static fields), which are then changed by subsequent instatiations of the dialog. The static fields are used directly in the execution of the plugin processes, resulting in very unsafe multithreading. All the above though doesn't affect the core data structures, neither the I/O (since about a year from now or so). In addition, all image processing is basically 2D: one can't resize an image 3D volume. There are stacks of 2D images, very easy to use, but they are not true 3D volumes neither are they processed as such. There's also support for 4D (3D+time) with hyperstacks, again an ad-hoc structure that is simply a long array of 2D images. Here are a few descriptions on the core ImageJ datastructures, at high, mid and low level of pixel operations: http://albert.rierol.net/imagej_programming_tutorials.html#ImageJ%20programming%20basics Some threading safety techniques are explained here: http://albert.rierol.net/imagej_programming_tutorials.html#Multithreaded%20programming%20for%20ImageJ There's a very active ImageJ malining list on the main ImageJ website, which answers to all questions: http://rsb.info.nih.gov/ij Hope that helped. Albert -- Albert Cardona http://albert.rierol.net --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
Re: Java equivalent to Python's Imaging Library (PIL)
Hi Albert On Thu, Mar 12, 2009 at 4:06 PM, Albert Cardona sapri...@gmail.com wrote: Hi Michael, [...] Because ImageJ's ij.jar became a library long after being just an application. There is no concept of MVC, and thus GUI classes are mixed with processing and controller constructs. What's worse, most plugins operate on the concept of the active image, which originally was the image contained on the selected image window--but any image on which one calls .show() will become the active image, which can happen anytime ... from any plugin, and different for each. [...] Hope that helped. Yes, thanks :) -- Michael Wood esiot...@gmail.com --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
Re: Java equivalent to Python's Imaging Library (PIL)
Hi Albert On Thu, Mar 12, 2009 at 4:06 PM, Albert Cardona sapri...@gmail.com wrote: Hi Michael, [...] Because ImageJ's ij.jar became a library long after being just an application. There is no concept of MVC, and thus GUI classes are mixed with processing and controller constructs. What's worse, most plugins operate on the concept of the active image, which originally was the image contained on the selected image window--but any image on which one calls .show() will become the active image, which can happen anytime ... from any plugin, and different for each. [...] Hope that helped. Yes, thanks :) -- Michael Wood esiot...@gmail.com --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
