// Procedures
public void GetRegionByGrayInvert(HObject ho_Image, out HObject ho_FoundRegion,
HTuple hv_MeanMaskWidth, HTuple hv_MeanMaskHeight, HTuple hv_EmpMaskWidth, HTuple hv_EmpMaskHeight,
HTuple hv_EmpFactor1, HTuple hv_EmpFactor2, HTuple hv_ThresholdMinGray, HTuple hv_ThresholdMaxGray,
HTuple hv_AreaMin, HTuple hv_AreaMax)
{
// Local iconic variables
HObject ho_ImageMean, ho_ImageEmphasize, ho_ImageInvert;
HObject ho_ImageAbsDiff, ho_ImageEmphasize2, ho_Areas, ho_ConnectedRegions1;
HObject ho_RegionFillUp, ho_SelectedRegions;
// Initialize local and output iconic variables
HOperatorSet.GenEmptyObj(out ho_FoundRegion);
HOperatorSet.GenEmptyObj(out ho_ImageMean);
HOperatorSet.GenEmptyObj(out ho_ImageEmphasize);
HOperatorSet.GenEmptyObj(out ho_ImageInvert);
HOperatorSet.GenEmptyObj(out ho_ImageAbsDiff);
HOperatorSet.GenEmptyObj(out ho_ImageEmphasize2);
HOperatorSet.GenEmptyObj(out ho_Areas);
HOperatorSet.GenEmptyObj(out ho_ConnectedRegions1);
HOperatorSet.GenEmptyObj(out ho_RegionFillUp);
HOperatorSet.GenEmptyObj(out ho_SelectedRegions);
//extract and enhance edges
ho_ImageMean.Dispose();
HOperatorSet.MeanSp(ho_Image, out ho_ImageMean, hv_MeanMaskHeight, hv_MeanMaskWidth,
1, 254);
ho_ImageEmphasize.Dispose();
HOperatorSet.Emphasize(ho_ImageMean, out ho_ImageEmphasize, hv_EmpMaskWidth,
hv_EmpMaskHeight, hv_EmpFactor1);
ho_ImageInvert.Dispose();
HOperatorSet.InvertImage(ho_ImageEmphasize, out ho_ImageInvert);
ho_ImageAbsDiff.Dispose();
HOperatorSet.AbsDiffImage(ho_ImageEmphasize, ho_ImageInvert, out ho_ImageAbsDiff,
1);
ho_ImageEmphasize2.Dispose();
HOperatorSet.Emphasize(ho_ImageAbsDiff, out ho_ImageEmphasize2, hv_EmpMaskWidth,
hv_EmpMaskHeight, hv_EmpFactor2);
//extract regions
ho_Areas.Dispose();
HOperatorSet.Threshold(ho_ImageEmphasize2, out ho_Areas, hv_ThresholdMinGray,
hv_ThresholdMaxGray);
ho_ConnectedRegions1.Dispose();
HOperatorSet.Connection(ho_Areas, out ho_ConnectedRegions1);
ho_RegionFillUp.Dispose();
HOperatorSet.FillUp(ho_ConnectedRegions1, out ho_RegionFillUp);
//select region
ho_SelectedRegions.Dispose();
HOperatorSet.SelectShape(ho_RegionFillUp, out ho_SelectedRegions, "area", "and",
hv_AreaMin, hv_AreaMax);
ho_FoundRegion.Dispose();
HOperatorSet.MoveRegion(ho_SelectedRegions, out ho_FoundRegion, 0, 0);
ho_ImageMean.Dispose();
ho_ImageEmphasize.Dispose();
ho_ImageInvert.Dispose();
ho_ImageAbsDiff.Dispose();
ho_ImageEmphasize2.Dispose();
ho_Areas.Dispose();
ho_ConnectedRegions1.Dispose();
ho_RegionFillUp.Dispose();
ho_SelectedRegions.Dispose();
return;
}