Name
histo_2dimhisto_2dimHisto2dimHisto2dim — Calculate the histogram of two-channel gray value images.
The operator histo_2dimhisto_2dimHisto2dimHisto2dimHisto2dim calculates the 2-dimensional
histogram of two images within RegionsRegionsRegionsRegionsregions. The gray values
of channel 1 (ImageColImageColImageColImageColimageCol) are interpreted as row index,
those of channel 2 (ImageRowImageRowImageRowImageRowimageRow) as column index. The gray
value at one point P(g1,g2) in the output image
Histo2DimHisto2DimHisto2DimHisto2Dimhisto2Dim indicates the frequency of the gray value
combination (g1,g2) with g1 indicating the line index and g2
the column index.
Note that the operator histo_2dimhisto_2dimHisto2dimHisto2dimHisto2dim only considers
the given RegionsRegionsRegionsRegionsregions and ignores any previously set domain
of the input images.
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
Region in which the histogram is to be calculated.
Histogram to be calculated.
read_image(Image,'monkey')
get_domain (Image, Domain)
gauss_filter (Image, ImageGauss, 7)
histo_2dim(Domain,ImageGauss, Image,Histo2Dim)
dev_display(Histo2Dim)
read_image(&Image,"monkey");
get_domain (Image, &Domain)
gauss_filter(Image,&ImageGauss,7);
histo_2dim(Domain,Image,ImageGauss,&Histo2Dim);
set_part(WindowHandle,0,0,511,511);
disp_image(Histo2Dim,WindowHandle);
read_image(Image,'monkey')
get_domain (Image, Domain)
gauss_filter (Image, ImageGauss, 7)
histo_2dim(Domain,ImageGauss, Image,Histo2Dim)
dev_display(Histo2Dim)
read_image(Image,'monkey')
get_domain (Image, Domain)
gauss_filter (Image, ImageGauss, 7)
histo_2dim(Domain,ImageGauss, Image,Histo2Dim)
dev_display(Histo2Dim)
read_image(Image,'monkey')
get_domain (Image, Domain)
gauss_filter (Image, ImageGauss, 7)
histo_2dim(Domain,ImageGauss, Image,Histo2Dim)
dev_display(Histo2Dim)
If F is the plane of the region, the runtime complexity is
O(F + 256^2).
The operator histo_2dimhisto_2dimHisto2dimHisto2dimHisto2dim returns the value 2 (H_MSG_TRUE) if both
images have defined gray values. The behavior in case of empty
input (no input images available) is set via the operator
set_system(::'no_object_result',<Result>:)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>), the behavior
in case of empty region is set via
set_system(::'empty_region_result',<Result>:)set_system("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>).
If necessary an exception is raised.
decompose3decompose3Decompose3Decompose3Decompose3,
decompose2decompose2Decompose2Decompose2Decompose2,
draw_regiondraw_regionDrawRegionDrawRegionDrawRegion
thresholdthresholdThresholdThresholdThreshold,
class_2dim_supclass_2dim_supClass2dimSupClass2dimSupClass2dimSup,
pouringpouringPouringPouringPouring,
local_maxlocal_maxLocalMaxLocalMaxLocalMax,
gray_skeletongray_skeletonGraySkeletonGraySkeletonGraySkeleton
gray_histogray_histoGrayHistoGrayHistoGrayHisto,
gray_histo_absgray_histo_absGrayHistoAbsGrayHistoAbsGrayHistoAbs
get_grayvalget_grayvalGetGrayvalGetGrayvalGetGrayval
Foundation