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Image Processing with ImageJ - Second Edition by Javier Pascau, José María Mateos Pérez, Jurjen Broeke

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Creating a basic PlugInFilter

To create a PlugInFilter implementation, we add the implements keyword behind the class name and specify PlugInFilter as the implementation. When you do this using an IDE, such as NetBeans, it will place a red squiggly underline under this statement. When you place the cursor on the line with the squiggly underline and press Alt + Enter (in NetBeans), the editor will give you a list of suggestions to rectify the mistake that we made. The first complaint is that NetBeans cannot find the PlugInFilter symbol because we haven't added it yet. Press Alt + Enter and select the option called Add import for ij.plugin.filter.PlugInFilter. You will now see that the import statement is added to your source file (usually at the ...

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