MultiCam Boards Documentation > GRABLINK series Documentation > GRABLINK Base Handbook > Functional Specification > Image Processing > Geometrical Operators

Geometrical Operators

This board can perform cropping and flipping along both directions.

Cropping Operator

The cropping operator extracts a rectangular area of pixels of the reconstructed image delivered by the camera. This area is named "cropped window".

The position and the size of the cropped window can be defined by steps of one pixel in both X and Y directions. However, following limitations are applicable:

By default, the cropped window is the entire image delivered by the camera.

The main control parameter of the cropping operator is GrabWindow.

By default, this parameter is set to NOBLACK disabling the cropping function. The acquired image fits exactly the active pixels area as defined by the MultiCam camera parameters. No surrounding weak or black pixels are present in the captured image.

To activate the cropping function:

The cropping function is not available when TapGeometry = *_2YE.

Notes

Flipping Operators

The X-flipping operator performs a left/right mirroring of the cropped window.

The Y-flipping operator performs a top/bottom mirroring of the cropped window.

The flipping operators are configured by ImageFlipX and ImageFlipY.

By default, both operators are OFF.