erosion_golayerosion_golayErosionGolayErosionGolayerosion_golay (算子名称)

名称

erosion_golayerosion_golayErosionGolayErosionGolayerosion_golay — Erode a region with an element from the Golay alphabet.

警告

erosion_golayerosion_golayErosionGolayErosionGolayErosionGolayerosion_golay is obsolete and is only provided for reasons of backward compatibility.

参数签名

erosion_golay(区域 : RegionErosion : GolayElement, Iterations, Rotation : )

描述

erosion_golayerosion_golayErosionGolayErosionGolayErosionGolayerosion_golay erodes a region with the selected element GolayElementGolayElementGolayElementGolayElementgolayElementgolay_element from the Golay alphabet. The following structuring elements are available:

'l', 'm', 'd', 'c', 'e', 'i', 'f', 'f2', 'h', 'k'.

The rotation number RotationRotationRotationRotationrotationrotation determines which rotation of the element should be used, and whether the foreground (even) or background version (odd) of the selected element should be used. The Golay elements, together with all possible rotations, are described with 该算子 golay_elementsgolay_elementsGolayElementsGolayElementsGolayElementsgolay_elements. The operator works by shifting the structuring element over the region to be processed (区域区域区域区域区域区域). For all positions of the structuring element fully contained in the region, the corresponding reference point (relative to the structuring element) is added to the output region. This means that the intersection of all translations of the structuring element within the region is computed.

The parameter IterationsIterationsIterationsIterationsiterationsiterations determines the number of iterations which are to be performed with the structuring element. The result of iteration n-1 is used as input for iteration n.

注意

Not all values of RotationRotationRotationRotationrotationrotation are valid for any Golay element. For some of the values of RotationRotationRotationRotationrotationrotation, the resulting regions are identical to the input regions.

运行信息

多线程类型:可重入(与非独占操作符并行运行)。
多线程作用域:全局(可以从任何线程调用)。
在元组级别自动并行化。

参数表

区域区域区域区域区域区域 (input_object) region(-array) → object

Regions to be eroded.

RegionErosionRegionErosionRegionErosionRegionErosionregionErosionregion_erosion (output_object) region(-array) → object

Eroded regions.

GolayElementGolayElementGolayElementGolayElementgolayElementgolay_element (input_control) string → (string)

Structuring element from the Golay alphabet.

Default: 'h' "h" "h" "h" "h" "h"

List of values: 'c'"c""c""c""c""c", 'd'"d""d""d""d""d", 'e'"e""e""e""e""e", 'f'"f""f""f""f""f", 'f2'"f2""f2""f2""f2""f2", 'h'"h""h""h""h""h", 'i'"i""i""i""i""i", 'k'"k""k""k""k""k", 'l'"l""l""l""l""l", 'm'"m""m""m""m""m"

IterationsIterationsIterationsIterationsiterationsiterations (input_control) integer → (integer)

Number of iterations.

Default: 1

Suggested values: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 17, 20, 30, 40, 50

Value range: 1 ≤ Iterations Iterations Iterations Iterations iterations iterations (lin)

Minimum increment: 1

Recommended increment: 1

RotationRotationRotationRotationrotationrotation (input_control) integer → (integer)

Rotation of the Golay element. Depending on the element, not all rotations are valid.

Default: 0

List of values: 0, 2, 4, 6, 8, 10, 12, 14, 1, 3, 5, 7, 9, 11, 13, 15

Complexity

Let F be the area of an input region. Then the runtime complexity for one region is:

结果

erosion_golayerosion_golayErosionGolayErosionGolayErosionGolayerosion_golay returns 2 ( H_MSG_TRUE) if all parameters are correct. The behavior in case of empty or no input region can be set via:

Otherwise, an exception is raised.

可能的前置算子

thresholdthresholdThresholdThresholdThresholdthreshold, regiongrowingregiongrowingRegiongrowingRegiongrowingRegiongrowingregiongrowing, watershedswatershedsWatershedsWatershedsWatershedswatersheds, class_ndim_normclass_ndim_normClassNdimNormClassNdimNormClassNdimNormclass_ndim_norm

可能的后置算子

reduce_domainreduce_domainReduceDomainReduceDomainReduceDomainreduce_domain, select_shapeselect_shapeSelectShapeSelectShapeSelectShapeselect_shape, area_centerarea_centerAreaCenterAreaCenterAreaCenterarea_center, connectionconnectionConnectionConnectionConnectionconnection

可替代算子

erosion_seqerosion_seqErosionSeqErosionSeqErosionSeqerosion_seq, erosion1erosion1Erosion1Erosion1Erosion1erosion1, erosion2erosion2Erosion2Erosion2Erosion2erosion2

参考其它

dilation_golaydilation_golayDilationGolayDilationGolayDilationGolaydilation_golay, opening_golayopening_golayOpeningGolayOpeningGolayOpeningGolayopening_golay, closing_golayclosing_golayClosingGolayClosingGolayClosingGolayclosing_golay, hit_or_miss_golayhit_or_miss_golayHitOrMissGolayHitOrMissGolayHitOrMissGolayhit_or_miss_golay, thinning_golaythinning_golayThinningGolayThinningGolayThinningGolaythinning_golay, thickening_golaythickening_golayThickeningGolayThickeningGolayThickeningGolaythickening_golay, golay_elementsgolay_elementsGolayElementsGolayElementsGolayElementsgolay_elements

模块

Foundation

算子列表