gray_bothatGrayBothatGrayBothatgray_bothatgray_bothat

HALCON ScriptCpp++.NETPythonC

Short description

gray_bothatGrayBothatGrayBothatgray_bothatgray_bothat — Perform a gray value bottom hat transformation on an image.

Signature

gray_bothat( image Image, image SE, out image ImageBotHat )void GrayBothat( const HObject& Image, const HObject& SE, HObject* ImageBotHat )static void HOperatorSet.GrayBothat( HObject image, HObject SE, out HObject imageBotHat )def gray_bothat( image: HObject, se: HObject ) -> HObject

Herror gray_bothat( const Hobject Image, const Hobject SE, Hobject* ImageBotHat )

Herror T_gray_bothat( const Hobject Image, const Hobject SE, Hobject* ImageBotHat )

HImage HImage::GrayBothat( const HImage& SE ) const

HImage HImage.GrayBothat( HImage SE )

Description

gray_bothatGrayBothat applies a gray value bottom hat transformation to the input image Imageimageimage with the structuring element SESEse. The image type of the structuring element SESEse must match the image type of the input image Imageimageimage. The gray value bottom hat transformation of an image \(i\) with a structuring element \(s\) is defined as

\[\begin{eqnarray*} \textit{bothat}(i,s) = (i \bullet s) - i , \end{eqnarray*}\]

i.e., the difference of the closing of the image with \(s\) and the image (see gray_closingGrayClosing). For the generation of structuring elements, see read_gray_seReadGraySe.

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

Execution information

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).

• Multithreading scope: global (may be called from any thread).

• Automatically parallelized on internal data level.

Parameters

Imageimageimage (input_object) (multichannel-)image(-array) → object (byte / uint2 / real)HObject (byte / uint2 / real)HImage (byte / uint2 / real)HObject (byte / uint2 / real)Hobject (byte / uint2 / real)

Input image.

SESEse (input_object) singlechannelimage → object (byte / uint2 / real)HObject (byte / uint2 / real)HImage (byte / uint2 / real)HObject (byte / uint2 / real)Hobject (byte / uint2 / real)

Structuring element.

ImageBotHatimageBotHatimage_bot_hat (output_object) (multichannel-)image(-array) → object (byte / uint2 / real)HObject (byte / uint2 / real)HImage (byte / uint2 / real)HObject (byte / uint2 / real)Hobject * (byte / uint2 / real)

Bottom hat image.

Result

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

Combinations with other operators

Combinations

Possible predecessors

read_gray_seReadGraySe, gen_disc_seGenDiscSe, read_imageReadImage

Possible successors

thresholdThreshold

Alternatives

gray_closingGrayClosing

See also

gray_tophatGrayTophat, top_hatTopHat, gray_erosion_rectGrayErosionRect, sub_imageSubImage

Module

Foundation