Regular evaluation grid

Dialogue box “Regular evaluation grid” allows you to set parameters for creating a regular evaluation grid. Parameters are described below.

Interrogation grid distance [pix]

Width - Width of the interrogation grid;

Height - Height of the interrogation grid;

Start position

X - Horizontal position of the upper left corner of the regular evaluation grid in the background image;

Y - Vertical position of the upper left corner of the regular evaluation grid in the background image.

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Cell numbers

X - Number of cells in horizontal direction;

Y - Number of grid cells in vertical direction.

Standard grid

Check box “Standard” is used to activate a standard evaluation grid structure, i.e. the grid lines start at the origin point (upper left corner) of the digital image (X=1, Y=1).

Extended grid

Check box “Extended” is used to activate an extended evaluation grid structure for multi-pass evaluation scheme with image correction tools. When it is checked, the evaluation grid will be extended one cell out of the standard grid in each of the four directions.

Reduced grid

When check box “Reduced” it is activated, the evaluation grid will be reduced one cell from the standard grid in each of the four directions.

Reset buttons

Reset grid - Used to reset the evaluation grid in the full image frame according to the grid width and grid height determined in the “Evaluation settings” window.