2.1 Geometric Operations
- Crop - cut image to selected
rectangular sub-image
- Rotate - 90 deg. CW, 90 deg. CCW, 180 deg., or abitrary angle
- Reflect - flip or mirror image horizontally or vertically
- Scale - change image size (proportionately or independently),
resample or interpolate pixel values
- Shear - general image linear (or affine) geometric transform
- Translate - change image position
