bit_rshift — Right shift of all pixels of the image.
bit_rshift(Image : ImageRShift : Shift : )
The operator bit_rshift calculates a “right shift”
of all pixels of the input image bit by bit.
The semantics of the “right shift” operation corresponds to that of C
(“>>”) for the
respective types (signed char, unsigned char, short, unsigned short, int/long).
Only the pixels within the definition range of the image
are processed.
Several images can be processed in one call. An output image is generated for every input image.
Image (input_object) (multichannel-)image(-array) → object (byte / direction / cyclic / int1 / int2 / uint2 / int4)
Input image(s).
ImageRShift (output_object) (multichannel-)image(-array) → object (byte / direction / cyclic / int1 / int2 / uint2 / int4)
Result image(s) by shift operation.
Shift (input_control) integer → (integer)
shift value
Default value: 3
Suggested values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 20, 24, 30, 31
Typical range of values: 0
≤
Shift
≤
31
Minimum increment: 1
Recommended increment: 1
Restriction: Shift >= 1 && Shift <= 31
bit_rshift(Int2Image,&ReducedInt2Image,8); convert_image_type(ReducedInt2Image,&ByteImage,"byte");
If the images are correct (type) and
Shift has a valid value the operator bit_rshift
returns the value TRUE.
The behavior in case of empty input (no input images available) is
set via the operator
set_system(::'no_object_result',<Result>:)
If necessary an exception is raised.
Foundation