Descriptors
Descriptors are capitalized. Multiple descriptors can be used together.
Table 1 describes the descriptors.
Descriptor |
Description |
|---|---|
I |
In-place operation. The operation result is written back to the data source. |
S |
Scaling operation. A floating-point scale factor scale is added to the function as a function parameter. The scale factor must be 2^n and cannot be positive infinity or NaN. Scaling of a computation result is done by dividing the output vector by scale before the function returns. This helps retain the output data range or its precision. |
P |
The operation can be performed only on a specified number of vectors. |
A |
Image data contains an alpha channel as the last channel and requires C4. The alpha channel is not processed. |
A0 |
Image data contains an alpha channel as the first channel and requires C4. The alpha channel is not processed. |
C |
Channel of interest (COI) is used in the operation. |
R |
A function operates on a defined region of interest (ROI) for each source image. |
V |
A function operates on a defined volume of interest (VOI) for each source image. |
C1 |
Image data is in pixel order and consists of one discrete interleaved channel. |
C2 |
Image data is in pixel order and consists of two discrete interleaved channels. |
C3 |
Image data is in pixel order and consists of three discrete interleaved channels. |
C4 |
Image data is in pixel order and consists of four discrete interleaved channels. |
M |
The operation uses a mask to determine the pixels to be processed. |
P2 |
Image data is in planar order and made up of two planar (non-interleaved) channels, with a separate pointer to each plane. |
P3 |
Image data is in planar order and made up of three discrete planar (non-interleaved) channels, with a separate pointer to each plane. |
P4 |
Image data is in planar order and made up of four discrete planar (non-interleaved) channels, with a separate pointer to each plane. |