AngleCategory

Specifies the types of lines to be returned by Hough Lines based on their orientation.

Remarks

The 'Angle Category' enumeration is used to filter detected lines by their orientation in the image. This allows you to focus detection and downstream processing on horizontal, vertical, or non-square (arbitrary angle) lines, depending on your document layout and requirements.

Practical Guidance

• Combine values using bitwise OR to detect multiple types (e.g., both horizontal and vertical).
• Adjust the 'Square Angle Tolerance' property to control how strictly lines must align to be considered horizontal or vertical.
• Use this filter to reduce false positives and focus on lines relevant to your workflow, such as table borders or form lines.

A combination of the following flags:

Used By

Hough Lines