Calculator Plus

Calculator Plus

Author: Wayne Rasband (wsr at nih.gov) and
Gabriel Landini (G.Landini at bham.ac.uk)

History: 2002/03/13: First version
2002/04/16: Added "Create Window" option; bug fixes
2003/06/09: Supports operations where i1 is a stack and i2 is not
2004/07/17: Does plane-wise calculations on RGB image 2009/06/09: Fixed subtract image order bug

Requires: ImageJ 1.31q or later is required to run this plugin from a macro.

Source: Calculator_Plus.java

Installation: Copy Calculator_Plus.class to the plugins folder and restart ImageJ.

Description: This plugin will add, subtract, multiply or divide two images or stacks. Unlike the built-in Process/Image Calculator command, it allows results to be scaled to prevent clipping when working with 8 and 16 bit images. Also, unlike the built-in calculator, it works with calibrated images and images do not have to be the same type. Note that if i1 is a stack and i2 is a single image then i2 will be applied to the entire stack.
Adapted to operate on the RGB planes independently by G. Landini 17/July/2004. Now colour images can be operated plane by plane. The result of the RGB operations are rounded and trimmed to the 8 bit space in each plane. This is useful to perform background uneven illumination correction in brightfield microscopy using colour images:
image/brightfield * 255
Before this plugin returned a greyscale result, now it returns an RGB result.

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Author:	Wayne Rasband (wsr at nih.gov) and Gabriel Landini (G.Landini at bham.ac.uk)
History:	2002/03/13: First version 2002/04/16: Added "Create Window" option; bug fixes 2003/06/09: Supports operations where i1 is a stack and i2 is not 2004/07/17: Does plane-wise calculations on RGB image 2009/06/09: Fixed subtract image order bug
Requires:	ImageJ 1.31q or later is required to run this plugin from a macro.
Source:	Calculator_Plus.java
Installation:	Copy Calculator_Plus.class to the plugins folder and restart ImageJ.
Description:	This plugin will add, subtract, multiply or divide two images or stacks. Unlike the built-in Process/Image Calculator command, it allows results to be scaled to prevent clipping when working with 8 and 16 bit images. Also, unlike the built-in calculator, it works with calibrated images and images do not have to be the same type. Note that if i1 is a stack and i2 is a single image then i2 will be applied to the entire stack. Adapted to operate on the RGB planes independently by G. Landini 17/July/2004. Now colour images can be operated plane by plane. The result of the RGB operations are rounded and trimmed to the 8 bit space in each plane. This is useful to perform background uneven illumination correction in brightfield microscopy using colour images: image/brightfield * 255 Before this plugin returned a greyscale result, now it returns an RGB result.