Enum AngleRangeOption

Specifies the part of Hough space to calculate

Namespace: OpenCvSharp.XImgProc

Assembly: OpenCvSharp.dll

Syntax

public enum AngleRangeOption

Remarks

The enum specifies the part of Hough space to calculate. Each member specifies primarily direction of lines(horizontal or vertical) and the direction of angle changes. Direction of angle changes is from multiples of 90 to odd multiples of 45. The image considered to be written top-down and left-to-right. Angles are started from vertical line and go clockwise. Separate quarters and halves are written in orientation they should be in full Hough space.

Fields

Name	Description
ARO_0_45	Vertical primarily direction and clockwise angle changes
ARO_315_0	Vertical primarily direction and counterclockwise angle changes
ARO_315_135	Full set of directions
ARO_315_45	Vertical primarily direction
ARO_45_135	Horizontal primarily direction
ARO_45_90	Horizontal primarily direction and counterclockwise angle changes
ARO_90_135	Horizontal primarily direction and clockwise angle changes
ARO_CTR_HOR	90 +/- atan(0.5), interval approximately from 64.5 to 116.5 degrees. It is used for calculating Fast Hough Transform for images skewed by atan(0.5).
ARO_CTR_VER	+/- atan(0.5), interval approximately from 333.5(-26.5) to 26.5 degrees It is used for calculating Fast Hough Transform for images skewed by atan(0.5).