Hi Thorsten Your code looks fine. It is a problem in my convolution ops code.
I updated the convolution branch in tutorials to work with your use-case. https://github.com/imagej/imagej-tutorials/blob/convolution/using-ops/src/main/java/ConvolutionOps.java The problem was that the ops framework did not correctly choose 'NaiveConvolution' (direct convolution with small kernel). Then even when I forced it to (by referring to NaiveConvolution.class directly) it did not extend the images properly (see https://github.com/imagej/imagej-ops/issues/98) If you get a chance let me know if this new example works. The example is now too complicated, but if it works for you I can spend some time this week integrating this logic into the op (so you can write nice concise code). Brian On Tue, Apr 21, 2015 at 9:35 AM, Thorsten Wagner < wag...@biomedical-imaging.de> wrote: > Dear Brian, > > thank you for the link! I'm approaching to a solution. However, I followed > your tutorial but I stell get a exception: > http://pastebin.com/vn84LCXx > > That's my code: > http://pastebin.com/jeuXaycN > > What I'm doing wrong? > > Cheers, > Thorsten > > > > On Mon, Apr 20, 2015 at 4:25 PM, Curtis Rueden <ctrue...@wisc.edu> wrote: > > Hi Thorsten, > > > I try to perform a simple convolution using imagej2. Unfortunately, it > > failed! > > The exception you receive is because you are creating a new ImageJ > application context, rather than reusing the existing one. This happens > because you write: > > final ImageJ ij = new ImageJ(); > > The handle to the existing context can be obtained in one of two ways: > > 1) If you are writing an ImageJ1 plugin (e.g., an ij.plugin.Plugin), then > you can write: > > // retrieve the ImageJ application context > final Context context = (Context) IJ.runPlugIn("org.scijava.Context", > ""); > final ImageJ ij = new ImageJ(context); > > 2) If you are writing an ImageJ2 plugin, then you can write: > > @Parameter > private OpService ops > > And just call "ops.convolve(...)" in your code. > > Or if you really want the "ImageJ" object, you can write: > > @Parameter > private ImageJ ij; > > See also: > https://github.com/imagej/imagej-tutorials/ > > Regards, > Curtis > > On Mon, Apr 20, 2015 at 4:53 AM, Thorsten Wagner < > wag...@biomedical-imaging.de> wrote: > > Dear list, > > I try to perform a simple convolution using imagej2. Unfortunately, it > failed! > > This is my code: > http://pastebin.com/CqBgcLXd > > This is the exception: > http://pastebin.com/KHkeGGAJ > > I would be grateful for any help. > > Regards, > Thorsten > > _______________________________________________ > ImageJ-devel mailing list > ImageJ-devel@imagej.net > http://imagej.net/mailman/listinfo/imagej-devel > > > > _______________________________________________ > ImageJ-devel mailing list > ImageJ-devel@imagej.net > http://imagej.net/mailman/listinfo/imagej-devel > > >
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