bit_xor (Operator)

Name

bit_xor — Bit-by-bit XOR of all pixels of the input images.

Synopsis

bit_xor(Image1, Image2 : ImageXor : : )

Description

The operator bit_xor calculates the “xor” of all pixels of the input images bit by bit. The semantics of the “xor” operation corresponds to that of C for the respective types (signed char, unsigned char, short, unsigned short, int/long). The images must have the same size and pixel type. The pixels within the definition range of the image in the first parameter are processed.

Several images can be processed in one call. In this case both input parameters contain the same number of images which are then processed in pairs. An output image is generated for every pair.

Parameters

Image1 (input_object)	(multichannel-)image(-array) → object (byte / direction / cyclic / int1 / int2 / uint2 / int4)
Input image(s) 1.

Image2 (input_object)	(multichannel-)image(-array) → object (byte / direction / cyclic / int1 / int2 / uint2 / int4)
Input image(s) 2.

ImageXor (output_object)	(multichannel-)image(-array) → object (byte / direction / cyclic / int1 / int2 / uint2 / int4)
Result image(s) by XOR-operation.

Example

read_image(Image0,'monkey')
disp_image(Image0,WindowHandle)
read_image(Image1,'fabrik')
disp_image(Image1,WindowHandle)
bit_xor(Image0,Image1,ImageBitX)
disp_image(ImageBitX,WindowHandle)

Result

If the parameter values are correct the operator bit_xor returns the value 2 (H_MSG_TRUE). The behavior in case of empty input (no input images available) can be determined by the operator set_system(::'no_object_result',<Result>:) If necessary an exception is raised.

Parallelization Information

bit_xor is reentrant and automatically parallelized (on tuple level, channel level, domain level).

Alternatives

bit_or, bit_and, add_image

See also

bit_or, bit_and

Module

Foundation