plane_deviationplane_deviationPlaneDeviationPlaneDeviationplane_deviation (算子)
名称
plane_deviationplane_deviationPlaneDeviationPlaneDeviationplane_deviation — 计算灰度值与近似图像平面的偏差。
签名
def plane_deviation(regions: HObject, image: HObject) -> Sequence[float]
def plane_deviation_s(regions: HObject, image: HObject) -> float
描述
算子 plane_deviationplane_deviationPlaneDeviationPlaneDeviationPlaneDeviationplane_deviation calculates the deviation of
the gray values in ImageImageImageImageimageimage from the approximation of the
gray values through a plane. Contrary to the standard deviation in
case of intensityintensityIntensityIntensityIntensityintensity slanted gray value planes also
receive the value zero. The gray value plane is calculated
according to gen_image_gray_rampgen_image_gray_rampGenImageGrayRampGenImageGrayRampGenImageGrayRampgen_image_gray_ramp。If F is the area of the region, , ,
and the parameters of the
image plane, and (r',c') the center of the region, DeviationDeviationDeviationDeviationdeviationdeviation is
defined by:
注意
Note that the operator plane_deviationplane_deviationPlaneDeviationPlaneDeviationPlaneDeviationplane_deviation only considers
the given RegionsRegionsRegionsRegionsregionsregions and ignores any previously set domain
of the input image ImageImageImageImageimageimage.
It should be noted that the calculation of DeviationDeviationDeviationDeviationdeviationdeviation does
not follow the usual definition. It is defined to return the value
0.0 for an image with only one pixel.
执行信息
- 多线程类型：可重入（与非独占算子并行运行）。
- 多线程作用域：全局（可从任何线程调用）。
- 在元组级别上自动并行化。
参数
RegionsRegionsRegionsRegionsregionsregions (输入对象) region(-array) → objectHRegionHObjectHRegionHobject
Regions, of which the plane deviation is to be
calculated.
ImageImageImageImageimageimage (输入对象) singlechannelimage → objectHImageHObjectHImageHobject (byte / cyclic)
灰度值图像。
DeviationDeviationDeviationDeviationdeviationdeviation (输出控制) real(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Deviation of the gray values within a region.
复杂度
If F is the area of the region the runtime complexity amounts to
O(F).
结果
算子 plane_deviationplane_deviationPlaneDeviationPlaneDeviationPlaneDeviationplane_deviation 返回值 2 (
H_MSG_TRUE)
if
ImageImageImageImageimageimage is of the type 'byte'"byte""byte""byte""byte""byte".当输入为空（无可用输入图像）时可设置行为通过算子 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>),
the behavior in case of empty region is set 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>)。如有必要，则抛出异常。
替代
intensityintensityIntensityIntensityIntensityintensity,
gen_image_gray_rampgen_image_gray_rampGenImageGrayRampGenImageGrayRampGenImageGrayRampgen_image_gray_ramp,
sub_imagesub_imageSubImageSubImageSubImagesub_image
另见
moments_gray_planemoments_gray_planeMomentsGrayPlaneMomentsGrayPlaneMomentsGrayPlanemoments_gray_plane
模块
基础