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getrangefromclass - Default display range of image based on its class

Syntax

range = getrangefromclass(I)

Description

range = getrangefromclass(I) returns the default display range of the image I, based on its class type. The function returns range, a two-element vector specifying the display range in the form [min max].

Class Support

I can be uint8, uint16, int16, logical, single, or double. range is of class double.

Note

For single and double data, getrangefromclass returns the range [0 1] to be consistent with the way double and single images are interpreted in MATLAB. For integer data, getrangefromclass returns the default display range of the class. For example, if the class is uint8, the dynamic range is [0 255].

Examples

Read in the 16-bit DICOM image and get the default display range.

CT = dicomread('CT-MONO2-16-ankle.dcm');
r = getrangefromclass(CT)
r =

      -32768       32767