arithmetic function
dip_Error dip_Arith ( in1_real, in2_imag, in2_real, in2_imag, out_real, out_imag, op, dt )
binary, integer, float
This function computes out = in1 op in2 on a pixel by pixel basis. The data types of the in1 and in2 image may be of different types. The two input images and the output images have the complex portion of the data as a separate image, that is, in1 = in1_real + iin1_imag. in1_imag and in2_imag may be 0. dt may be any of DIPlib's data types, or the constants DIP_DT_MINIMUM or DIP_DT_FLEX, and determines what the output data type will be. DIP_DT_MINIMUM selects a data type according to the default for dyadic operations, see Information about dyadic operations for more information. DIP_DT_FLEX will choose a floating point (real or complex) type, the precision depends on the input types.
| Data type | Name | Description |
| dip_Image | in1_real | First input, real part |
| dip_Image | in1_imag | First input, imaginary part (or NULL) |
| dip_Image | in2_real | Second input, real part |
| dip_Image | in2_imag | Second input, imaginary part (or NULL) |
| dip_Image | out_real | Output, real part |
| dip_Image | out_imag | Output, imaginary part |
| dipf_ArithOperation | op | Dyadic arithmetic operation |
| dip_DataType | dt | Data type for output |
The dipf_ArithOperation flag can be one of:
| Name | Description |
| DIP_ARITHOP_ADD | Addition (in1+in2) |
| DIP_ARITHOP_SUB | Subtraction (in1-in2) |
| DIP_ARITHOP_MUL | Multiplication (in1*in2) |
| DIP_ARITHOP_DIV | Division (in1/in2) |
| DIP_ARITHOP_MUL_CONJUGATE | Conjugate multiplication (in1*conj(in2)) |
Arith, Add, Sub, Mul, MulConjugate, Div, AddInteger, AddFloat, AddComplex, SubInteger, SubFloat, SubComplex, MulInteger, MulFloat, MulComplex, MulConjugateComplex, DivInteger, DivFloat, DivComplex