Hi Vera, On Wed, 6 Aug 2014, Vera Andrejchenko wrote:
> I would like to ask if ImageJ2 can be used as a library for developing > stand alone applications, (not only for plugins)? Yes, the idea of ImageJ2 is to future-proof ImageJ for many more use cases, including writing a new application. For details, see http://imagej.net/ImageJ2#Features_of_ImageJ2 > What I would like to use it is: > - reading, writing, accessing pixel values of multidimensional > (multispectral) images, > - FFT, histograms, using the Filters (as they are in the ImageJ app) > - Addition, multiplication etc. of image pixel values as they are in the > Image Calculator methods (add, divide, multiply...) It sounds as if you would benefit from the modular structure of ImageJ2: you can basically cherry-pick which parts you want to use. In particular, it looks as if you could benefit from ImageJ OPS -- which is still in the hot phase of development. To get an idea how to make use of ImageJ OPS, please have a look here: https://github.com/imagej/imagej-ops (scroll down to the README) > What I tried so far is using the .jars from the ImageJ.app and referenced > them as external libraries from my project. But on the very beginning when > I try creating the ImageJ object I keep receiving error messages related > to some of the Services, for example: > > java.lang.UnsupportedOperationException: Cannot instantiate more than one > DefaultLegacyService at net.imagej [...] The problem you face is caused by *more* than one ImageJ object being instantiated: every ImageJ object (which we call "gateway" because it is basically a gateway to all the different services) is connected to a "SciJava context" that basically offers all the services such as the plugin service, the event service, the log service, etc Due to limitations in ImageJ 1.x' design, the legacy service -- responsible for executing any function in ImageJ 1.x -- can be instantiated only once per class loader. That means that you have to *dispose* of a SciJava context offering a legacy service *before* you can instantiate a new context. > So I was wondering if I can use ImageJ2 as an image processing library > for my proejct... Absolutely. > If it is meant to be used as an image processing library which can be > referenced from other projects? If yes, could you send me some links I can > read how to properly set it up and reference the necessary libraries? The best examples we have live in this source code repository: https://github.com/imagej/imagej-tutorials/ I would like to point you in particular to 'load-and-display-dataset' and 'using-ops'. Ciao, Johannes _______________________________________________ ImageJ-devel mailing list ImageJ-devel@imagej.net http://imagej.net/mailman/listinfo/imagej-devel
