Woolz Image Processing
Version 1.7.5
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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... | |
Grey value inversion.
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