invert_image — Invert an image.
The operator invert_image inverts the gray values of an image. For images of the 'byte' and 'cyclic' type the result is calculated as:
g' = 255 - g
Images of the 'direction' type are transformed by
g' = (g + 90) modulo 180
In the case of signed types the values are negated. The resulting image has the same pixel type as the input image.
Several images can be processed in one call. An output image is generated for every input image.
invert_image can be executed on an OpenCL device for byte, direction, cyclic, int1, int2, uint2, int4, and real images.
Image(s) with inverted gray values.
read_image(Orig,'fabrik') invert_image(Orig,Invert) disp_image(Invert,WindowHandle)
scale_image, add_image, sub_image