NullPointerException in Image Math plugin

[Maier, Lorenz]

Dear all,

I found a NullPointerException in ij.plugin.filter.ImageMath, which occured to me when I used the "Macro..." macro of Image Math in batch mode.

It is located at line 128 of ImageMath.java, when gd.getPreviewCheckbox().getState() is executed, but there is no PreviewCheckbox in the Dialog.

A small change was enough as a workaround:

boolean previewing() {
                return gd!=null && gd.getPreviewCheckbox()!=null && gd.getPreviewCheckbox().getState();
}

Best regards,
Lorenz


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