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Default display range of image based on its class


range = getrangefromclass(I)


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.


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].


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Read 16-bit DICOM image into the workspace.

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

Get the display range from the image.

r = getrangefromclass(CT)
r = 

      -32768       32767

Extended Capabilities

See Also


Introduced before R2006a

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