WlzGreyInvertMinMax.c File Reference

Grey value inversion. More...

Functions
WlzErrorNum	WlzGreyInvertMinMax (WlzObject *obj, WlzPixelV min, WlzPixelV max)
	Invert the Grey values of an object within a given range. The supplied min and max values define the grey transformation by: \[ g' = g_{max} + g_{min} - g \] which means that g=gmax gives g'=gmin and g=gmin gives g'=gmax. This is a generalisation of the original invert and allows for the "normal" inversion of 255-g for byte images. The user must ensure the grey-value type of the given object can hold the result e.g. if the result is negative. Note it is assumed that min and max have a grey type which can be converted to the grey-type of the given image. More...

Detailed Description

Grey value inversion.

Author

Margaret Stark

Date

September 2003

Version

Id

8d5cb1382d029722730883d5555826033caf7ad4

Address: MRC Human Genetics Unit, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU, UK.

Copyright (C), [2012], The University Court of the University of Edinburgh, Old College, Edinburgh, UK.

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