RangeAdjust

Range adjust

Purpose

This utility allows you to change the grey values of images, volumes and selfiles with images and volumes to a specified range.

Usage

$ range_adjust -i ...

Parameters

• __OR__ Adjust the grey level range of a single file

• __OR__ If no output file is given, then the input one is rewritten

• `` Adjust the grey level range of a bunch of files

• __OR__ If no output extension neither root are given, then the input ones are rewritten

• `` Do not produce on screen information

• `` Minimum value of the output image/volume

• `` Maximum value of the output image/volume

• -noise [sigma0] = Noise in the minimum and maximum values. The noise for each one (min andmax) are independently generated from a Gaussian distributionN(0,sigma). This random value is added to the suppliedmin andmax values

• `` Any valid mask within which the adjustment parameters will be estimated. The linear transformation will be applied to the whole image.

Examples and notes

Change the range of a single image, overwriting the input image

$ range_adjust -i g0ta00001.xmp -min 0 -max 1

Change the range of a sel file, a new extension is given to output images, ie, if input images are of the like ofg0ta0001.xmp, then the output ones will beg0ta0001.ran. The output images have a minimum and maximum around the given min and max values

$ range_adjust -i g0ta.sel -oext ran -min 0 -max 1 -noise 0.1

Change the range of a single volume, computing the transformation parameters within a binary mask that is in the file mask.vol

$ range_adjust -i myvolume.vol -o myAdjustedVolume.vol -min 0 -max 1 -mask mask.vol

--Main.AlfredoSolano - 18 Jan 2007