skeletonskeletonSkeletonSkeletonskeleton (算子名称)

名称

skeletonskeletonSkeletonSkeletonskeleton — Compute the skeleton of a region.

参数签名

描述

skeletonskeletonSkeletonSkeletonSkeletonskeleton computes the skeleton, i.e., the medial axis of the input regions. The skeleton is constructed in a way that each point on it can be seen as the center point of a circle with the largest radius possible while still being completely contained in the region.

运行信息

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Automatically parallelized on tuple level.

参数表

Complexity

Let F be the area of the enclosing rectangle of the input region. Then the runtime complexity is O(F) (per region).

结果

skeletonskeletonSkeletonSkeletonSkeletonskeleton returns 2 ( H_MSG_TRUE) if all parameters are correct. The behavior in case of empty input (no regions given) can be set via set_system('no_object_result',<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>) and the behavior in case of an empty input region via set_system('empty_region_result',<Result>)set_system("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)set_system("empty_region_result",<Result>). If necessary, an exception is raised.

可能的前置算子

sobel_ampsobel_ampSobelAmpSobelAmpSobelAmpsobel_amp, edges_imageedges_imageEdgesImageEdgesImageEdgesImageedges_image, bandpass_imagebandpass_imageBandpassImageBandpassImageBandpassImagebandpass_image, thresholdthresholdThresholdThresholdThresholdthreshold, hysteresis_thresholdhysteresis_thresholdHysteresisThresholdHysteresisThresholdHysteresisThresholdhysteresis_threshold

可能的后置算子

junctions_skeletonjunctions_skeletonJunctionsSkeletonJunctionsSkeletonJunctionsSkeletonjunctions_skeleton, pruningpruningPruningPruningPruningpruning

可替代算子

morph_skeletonmorph_skeletonMorphSkeletonMorphSkeletonMorphSkeletonmorph_skeleton, thinningthinningThinningThinningThinningthinning

参考其它

gray_skeletongray_skeletonGraySkeletonGraySkeletonGraySkeletongray_skeleton, sobel_ampsobel_ampSobelAmpSobelAmpSobelAmpsobel_amp, edges_imageedges_imageEdgesImageEdgesImageEdgesImageedges_image, robertsrobertsRobertsRobertsRobertsroberts, bandpass_imagebandpass_imageBandpassImageBandpassImageBandpassImagebandpass_image, thresholdthresholdThresholdThresholdThresholdthreshold

References

Eckardt, U. “Verdünnung mit Perfekten Punkten”, Proceedings 10. DAGM-Symposium, IFB 180, Zurich, 1988

模块

Foundation

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