| Operators |
div_image — Divide two images.
div_image(Image1, Image2 : ImageResult : Mult, Add : )
The operator div_image divides two images. The gray values (g1,g2) of the input images (Image1) are transformed as follows:
g' := g1 / g2 * Mult + Add
If an overflow or an underflow occurs the values are clipped.
For a division by zero the result is set to zero.
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.
div_image can be executed on an OpenCL device for byte, int1, int2, uint2, int4, real and complex images. However, since for OpenCL 1.0 only single precision floating point is supported for all devices, and not all rounding modes are supported, the OpenCL implementation can produce slightly different results from the scalar implementation.
Image(s) 1.
Image(s) 2.
Result image(s) by the division.
Factor for gray range adaption.
Default value: 255
Suggested values: 0.1, 0.2, 0.5, 1.0, 2.0, 3.0, 10, 100, 500, 1000
Typical range of values: -1000 ≤ Mult ≤ 1000
Minimum increment: 0.001
Recommended increment: 1
Value for gray range adaption.
Default value: 0
Suggested values: 0.0, 128.0, 256.0, 1025
Typical range of values: -1000 ≤ Add ≤ 1000
Minimum increment: 0.01
Recommended increment: 1.0
read_image(Image1,'fabrik') dev_display (Image1) read_image(Image2,'monkey') dev_display (Image2) div_image (Image1, Image2, Result, 200, 10) dev_display (Result)
The operator div_image returns the value 2 (H_MSG_TRUE) if the parameters are correct. 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.
add_image, sub_image, mult_image
add_image, sub_image, mult_image
Foundation
| Operators |