expand_lineexpand_lineExpandLineExpandLineexpand_line (算子)

名称

expand_lineexpand_lineExpandLineExpandLineexpand_line — 从给定线开始扩大区域。

警告

expand_lineexpand_lineExpandLineExpandLineExpandLineexpand_line 已过时，仅出于向后兼容性考虑而保留。

签名

expand_line(Image : RegionExpand : Coordinate, ExpandType, RowColumn, Threshold : )

描述

expand_lineexpand_lineExpandLineExpandLineExpandLineexpand_line generates a region by expansion, starting at a given line (row or column). The expansion is terminated when the current gray value differs by more than ThresholdThresholdThresholdThresholdthresholdthreshold from the mean gray value along the line (ExpandTypeExpandTypeExpandTypeExpandTypeexpandTypeexpand_type = 'mean'"mean""mean""mean""mean""mean") or from the previously added gray value (ExpandTypeExpandTypeExpandTypeExpandTypeexpandTypeexpand_type = 'gradient'"gradient""gradient""gradient""gradient""gradient").

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

ImageImageImageImageimageimage (输入对象) singlechannelimage(-array) → object (byte)

输入图像。

RegionExpandRegionExpandRegionExpandRegionExpandregionExpandregion_expand (输出对象) region(-array) → object

Extracted segments.

CoordinateCoordinateCoordinateCoordinatecoordinatecoordinate (输入控制) integer → (integer)

Row or column coordinate.

默认值： 256

建议值： 16, 64, 128, 200, 256, 300, 400, 511

限制： Coordinate >= 0

ExpandTypeExpandTypeExpandTypeExpandTypeexpandTypeexpand_type (输入控制) string → (string)

Stopping criterion.

默认值： 'gradient' "gradient" "gradient" "gradient" "gradient" "gradient"

值列表： 'gradient'"gradient""gradient""gradient""gradient""gradient", 'mean'"mean""mean""mean""mean""mean"

RowColumnRowColumnRowColumnRowColumnrowColumnrow_column (输入控制) string → (string)

Segmentation mode (row or column).

默认值： 'row' "row" "row" "row" "row" "row"

值列表： 'column'"column""column""column""column""column", 'row'"row""row""row""row""row"

ThresholdThresholdThresholdThresholdthresholdthreshold (输入控制) number → (real / integer)

Threshold for the expansion.

默认值： 3.0

建议值： 0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 13.0, 17.0, 20.0, 30.0

值范围： 0 ≤ Threshold Threshold Threshold Threshold threshold threshold ≤ 255 (lin)

最小增量： 1.0

建议增量： 1.0

示例 (C++ (HALCON 5.0-10.0))

#include "HIOStream.h"
#if !defined(USE_IOSTREAM_H)
using namespace std;
#endif
#include "HalconCpp.h"
using namespace Halcon;

int main (int argc, char *argv[])
{
  HImage   image (argv[1]),
           gauss;
  HWindow  win;

  win.SetDraw ("margin");
  win.SetColored (12);

  image.Display (win);

  gauss = image.GaussImage (5);

  HRegionArray reg = gauss.ExpandLine (100, "mean", "row", 5.0);

  reg.Display (win);
  win.Click ();

  return (0);
}

示例（C）

read_image(&Image,"fabrik");
gauss_filter(Image,&Gauss,5);
expand_line(Gauss,&Reg,100,"mean","row",5.0);
set_colored(WindowHandle,12);
disp_region(Maxima,WindowHandle);

示例 (C++ (HALCON 5.0-10.0))

#include "HIOStream.h"
#if !defined(USE_IOSTREAM_H)
using namespace std;
#endif
#include "HalconCpp.h"
using namespace Halcon;

int main (int argc, char *argv[])
{
  HImage   image (argv[1]),
           gauss;
  HWindow  win;

  win.SetDraw ("margin");
  win.SetColored (12);

  image.Display (win);

  gauss = image.GaussImage (5);

  HRegionArray reg = gauss.ExpandLine (100, "mean", "row", 5.0);

  reg.Display (win);
  win.Click ();

  return (0);
}

示例 (C++ (HALCON 5.0-10.0))

#include "HIOStream.h"
#if !defined(USE_IOSTREAM_H)
using namespace std;
#endif
#include "HalconCpp.h"
using namespace Halcon;

int main (int argc, char *argv[])
{
  HImage   image (argv[1]),
           gauss;
  HWindow  win;

  win.SetDraw ("margin");
  win.SetColored (12);

  image.Display (win);

  gauss = image.GaussImage (5);

  HRegionArray reg = gauss.ExpandLine (100, "mean", "row", 5.0);

  reg.Display (win);
  win.Click ();

  return (0);
}

示例 (C++ (HALCON 5.0-10.0))

#include "HIOStream.h"
#if !defined(USE_IOSTREAM_H)
using namespace std;
#endif
#include "HalconCpp.h"
using namespace Halcon;

int main (int argc, char *argv[])
{
  HImage   image (argv[1]),
           gauss;
  HWindow  win;

  win.SetDraw ("margin");
  win.SetColored (12);

  image.Display (win);

  gauss = image.GaussImage (5);

  HRegionArray reg = gauss.ExpandLine (100, "mean", "row", 5.0);

  reg.Display (win);
  win.Click ();

  return (0);
}

可能的前趋

binomial_filterbinomial_filterBinomialFilterBinomialFilterBinomialFilterbinomial_filter, gauss_filtergauss_filterGaussFilterGaussFilterGaussFiltergauss_filter, smooth_imagesmooth_imageSmoothImageSmoothImageSmoothImagesmooth_image, anisotropic_diffusionanisotropic_diffusionAnisotropicDiffusionAnisotropicDiffusionAnisotropicDiffusionanisotropic_diffusion, median_imagemedian_imageMedianImageMedianImageMedianImagemedian_image, affine_trans_imageaffine_trans_imageAffineTransImageAffineTransImageAffineTransImageaffine_trans_image, rotate_imagerotate_imageRotateImageRotateImageRotateImagerotate_image

可能的后继

intersectionintersectionIntersectionIntersectionIntersectionintersection, openingopeningOpeningOpeningOpeningopening, closingclosingClosingClosingClosingclosing

替代

regiongrowing_meanregiongrowing_meanRegiongrowingMeanRegiongrowingMeanRegiongrowingMeanregiongrowing_mean, expand_grayexpand_grayExpandGrayExpandGrayExpandGrayexpand_gray, expand_gray_refexpand_gray_refExpandGrayRefExpandGrayRefExpandGrayRefexpand_gray_ref

模块

基础

算子