EasyImage::SetCircleWarp
Prepares suitable warp images for use with function EasyImage::Warp to unwarp a circular ring-wedge shape into a straight rectangle.
This is a cartesian to polar image conversion function.
See also EasyImage::SetInvCircleWarp.
Namespace: Euresys::Open_eVision
[C++]
static void SetCircleWarp(
float centerX,
float centerY,
int numberOfRadialSampledPoints,
float minimumRadius,
float maximumRadius,
int numberOfTangentSampledPoints,
float minimumAngle,
float maximumAngle,
EImageBW16* warpImageX,
EImageBW16* warpImageY
)
Parameters
centerX
Abscissa of the ring-wedge center.
centerY
Ordinate of the ring-wedge center.
numberOfRadialSampledPoints
Number of points to be sampled in the radial direction (the height of the destination polar image).
minimumRadius
Starting radius of the ring-wedge shape.
maximumRadius
Ending radius of the ring-wedge shape.
numberOfTangentSampledPoints
Number of points to be sampled in the tangent direction (the width of the destination polar image).
minimumAngle
Starting angle of the ring-wedge shape.
maximumAngle
Ending angle of the ring-wedge shape.
warpImageX
Destination warp image for the abscissas.
warpImageY
Destination warp image for the ordinates.
Remarks
Typical use is unwarping of a text printed around a circle.
Note. A ring-wedge is delimited by two concentric circles and two straight lines passing through the center.
EasyImage.SetCircleWarp
Prepares suitable warp images for use with function EasyImage.Warp to unwarp a circular ring-wedge shape into a straight rectangle.
This is a cartesian to polar image conversion function.
See also EasyImage.SetInvCircleWarp.
Namespace: Euresys.Open_eVision
[C#]
static void SetCircleWarp(
float centerX,
float centerY,
int numberOfRadialSampledPoints,
float minimumRadius,
float maximumRadius,
int numberOfTangentSampledPoints,
float minimumAngle,
float maximumAngle,
EImageBW16 warpImageX,
EImageBW16 warpImageY
)
Parameters
centerX
Abscissa of the ring-wedge center.
centerY
Ordinate of the ring-wedge center.
numberOfRadialSampledPoints
Number of points to be sampled in the radial direction (the height of the destination polar image).
minimumRadius
Starting radius of the ring-wedge shape.
maximumRadius
Ending radius of the ring-wedge shape.
numberOfTangentSampledPoints
Number of points to be sampled in the tangent direction (the width of the destination polar image).
minimumAngle
Starting angle of the ring-wedge shape.
maximumAngle
Ending angle of the ring-wedge shape.
warpImageX
Destination warp image for the abscissas.
warpImageY
Destination warp image for the ordinates.
Remarks
Typical use is unwarping of a text printed around a circle.
Note. A ring-wedge is delimited by two concentric circles and two straight lines passing through the center.
EasyImage.SetCircleWarp
Prepares suitable warp images for use with function EasyImage.Warp to unwarp a circular ring-wedge shape into a straight rectangle.
This is a cartesian to polar image conversion function.
See also EasyImage.SetInvCircleWarp.
Module: open_evision
[Python]
@staticmethod
SetCircleWarp(
centerX: float
centerY: float
numberOfRadialSampledPoints: int
minimumRadius: float
maximumRadius: float
numberOfTangentSampledPoints: int
minimumAngle: float
maximumAngle: float
warpImageX: EImageBW16
warpImageY: EImageBW16
) -> None
Parameters
centerX
Abscissa of the ring-wedge center.
centerY
Ordinate of the ring-wedge center.
numberOfRadialSampledPoints
Number of points to be sampled in the radial direction (the height of the destination polar image).
minimumRadius
Starting radius of the ring-wedge shape.
maximumRadius
Ending radius of the ring-wedge shape.
numberOfTangentSampledPoints
Number of points to be sampled in the tangent direction (the width of the destination polar image).
minimumAngle
Starting angle of the ring-wedge shape.
maximumAngle
Ending angle of the ring-wedge shape.
warpImageX
Destination warp image for the abscissas.
warpImageY
Destination warp image for the ordinates.
Remarks
Typical use is unwarping of a text printed around a circle.
Note. A ring-wedge is delimited by two concentric circles and two straight lines passing through the center.