Basic Properties
- Orientation specifies the orientation of the gap: Horizontal, Vertical.
- Height and Width specifies the minimum allowed gap height (for horizontal orientation) and width (for vertical orientation).
Advanced Properties
- Search among sets the type of objects among which to look for the White Gap. Select the desired objects by checking the boxes next to them. You can select one or more values from a list: Text, Punctuation mark, Picture, Inverted text, Checkmark, Separator, Barcode.
- Lower threshold limit sets the minimum level of the histogram. This property allows other objects in the search area. If the height of the histogram of the objects is greater than the number specified in this field, the program will consider the search area to contain no gaps. Measured in the user-defined units of measurement. The default value is 37dot.
- Upper threshold limit sets the maximum level of the histogram. This property allows excluding false histogram maximums which may be caused by large numbers of vertically arranged accidental objects in the search area when looking for a vertical gap or horizontally arranged objects when looking for a horizontal gap. Measured in the user-defined units of measurement. The default value is 150dot.
- Threshold coefficient sets the maximum relative level of the histogram. The relative level of the histogram is calculated as [level of histogram]/[histogram maximum in search area]. The default value is 20.