Get resizing fraction
| FwStatus | fwiGetResizeFract | ( | FwiSize srcSize, FwiRect srcRoi, double xFactor, double yFactor, double* xFr, double* yFr, int interpolation ); |
| interpolation | Specifies the method of interpolation. | |
| srcRoi | Source image ROI. | |
| srcSize | Source image size. | |
| xFactor | Factor value for X axis direction. | |
| xFr | Inverse factor value for X axis direction. | |
| yFactor | Factor value for Y axis direction . | |
| yFr | Inverse factor value for Y axis direction . |
This function calculates the inverses of x and y scaling factors and checks whether parameters are correctly defined. It is typically used with the ResizeShift functions.
The following interpolation modes are available.
FWI_INTER_NN: nearest neighbor interpolation FWI_INTER_LINEAR: linear interpolation FWI_INTER_CUBIC: cubic interpolation FWI_INTER_LANCZOS: interpolation with Lanczos window function