Operator Reference

HALCON Operator Reference / Morphology / Gray Values
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gray_dilationgray_dilationGrayDilationGrayDilationgray_dilation (Operator)

gray_dilationgray_dilationGrayDilationGrayDilationgray_dilation — Perform a gray value dilation on an image.

Signature

gray_dilation(Image, SE : ImageDilation : : )

Herror gray_dilation(const Hobject Image, const Hobject SE, Hobject* ImageDilation)

Herror T_gray_dilation(const Hobject Image, const Hobject SE, Hobject* ImageDilation)

void GrayDilation(const HObject& Image, const HObject& SE, HObject* ImageDilation)

HImage HImage::GrayDilation(const HImage& SE) const

static void HOperatorSet.GrayDilation(HObject image, HObject SE, out HObject imageDilation)

HImage HImage.GrayDilation(HImage SE)

def gray_dilation(image: HObject, se: HObject) -> HObject

Description

gray_dilationgray_dilationGrayDilationGrayDilationgray_dilation applies a gray value dilation to the input image ImageImageImageimageimage with the structuring element SESESESEse. The image type of the structuring element SESESESEse must match the image type of the input image ImageImageImageimageimage. The gray value dilation of an image i with a structuring element s at the pixel position x is defined as: Here, S is the domain of the structuring element s (see read_gray_seread_gray_seReadGraySeReadGraySeread_gray_se).

The gray value dilation is particularly fast for flat structuring elements, i.e., structuring elements with a constant gray level within their domain.

Execution Information

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

Parameters

ImageImageImageimageimage (input_object)  (multichannel-)image(-array) → objectHImageHObjectHObjectHobject (byte / uint2 / real)

Input image.

SESESESEse (input_object)  singlechannelimage → objectHImageHObjectHObjectHobject (byte / uint2 / real)

Structuring element.

ImageDilationImageDilationImageDilationimageDilationimage_dilation (output_object)  (multichannel-)image(-array) → objectHImageHObjectHObjectHobject * (byte / uint2 / real)

Gray-dilated image.

Result

gray_dilationgray_dilationGrayDilationGrayDilationgray_dilation returns 2 ( H_MSG_TRUE) if the structuring element is not the empty region. Otherwise, an exception is raised.

Possible Predecessors

read_gray_seread_gray_seReadGraySeReadGraySeread_gray_se, gen_disc_segen_disc_seGenDiscSeGenDiscSegen_disc_se, read_imageread_imageReadImageReadImageread_image

Possible Successors

sub_imagesub_imageSubImageSubImagesub_image, gray_erosiongray_erosionGrayErosionGrayErosiongray_erosion

Alternatives

gray_dilation_rectgray_dilation_rectGrayDilationRectGrayDilationRectgray_dilation_rect, gray_dilation_shapegray_dilation_shapeGrayDilationShapeGrayDilationShapegray_dilation_shape

See also

gray_openinggray_openingGrayOpeningGrayOpeninggray_opening, gray_closinggray_closingGrayClosingGrayClosinggray_closing, dilation1dilation1Dilation1Dilation1dilation1, gray_skeletongray_skeletonGraySkeletonGraySkeletongray_skeleton

Module

Foundation

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