gray_erosiongray_erosionGrayErosionGrayErosiongray_erosion (Operator)

Name

gray_erosiongray_erosionGrayErosionGrayErosiongray_erosion — Perform a gray value erosion on an image.

Signature

gray_erosion(Image, SE : ImageErosion : : )

Herror gray_erosion(const Hobject Image, const Hobject SE, Hobject* ImageErosion)

Herror T_gray_erosion(const Hobject Image, const Hobject SE, Hobject* ImageErosion)

void GrayErosion(const HObject& Image, const HObject& SE, HObject* ImageErosion)

HImage HImage::GrayErosion(const HImage& SE) const

static void HOperatorSet.GrayErosion(HObject image, HObject SE, out HObject imageErosion)

HImage HImage.GrayErosion(HImage SE)

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

Description

gray_erosiongray_erosionGrayErosionGrayErosionGrayErosiongray_erosion applies a gray value erosion to the input image ImageImageImageImageimageimage with the structuring element SESESESESEse. The image type of the structuring element SESESESESEse must match the image type of the input image ImageImageImageImageimageimage. The gray value erosion 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_seReadGraySeReadGraySeReadGraySeread_gray_se).

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

Execution Information

Parameters

ImageImageImageImageimageimage (input_object)  (multichannel-)image(-array) objectHImageHObjectHImageHobject (byte / uint2 / real)

Input image.

SESESESESEse (input_object)  singlechannelimage objectHImageHObjectHImageHobject (byte / uint2 / real)

Structuring element.

ImageErosionImageErosionImageErosionImageErosionimageErosionimage_erosion (output_object)  (multichannel-)image(-array) objectHImageHObjectHImageHobject * (byte / uint2 / real)

Gray-eroded image.

Result

gray_erosiongray_erosionGrayErosionGrayErosionGrayErosiongray_erosion 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_seReadGraySeReadGraySeReadGraySeread_gray_se, gen_disc_segen_disc_seGenDiscSeGenDiscSeGenDiscSegen_disc_se, read_imageread_imageReadImageReadImageReadImageread_image

Possible Successors

gray_dilationgray_dilationGrayDilationGrayDilationGrayDilationgray_dilation, sub_imagesub_imageSubImageSubImageSubImagesub_image

Alternatives

gray_erosion_rectgray_erosion_rectGrayErosionRectGrayErosionRectGrayErosionRectgray_erosion_rect, gray_erosion_shapegray_erosion_shapeGrayErosionShapeGrayErosionShapeGrayErosionShapegray_erosion_shape

See also

gray_openinggray_openingGrayOpeningGrayOpeningGrayOpeninggray_opening, gray_closinggray_closingGrayClosingGrayClosingGrayClosinggray_closing, erosion1erosion1Erosion1Erosion1Erosion1erosion1, gray_skeletongray_skeletonGraySkeletonGraySkeletonGraySkeletongray_skeleton

Module

Foundation