HxIdentMaskVariance.h File Reference

#include "HxImageRep.h"

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Functions

HxValue L_HXIMAGEREP HxIdentMaskVariance (HxImageRep im, HxImageRep mask, HxPoint p, HxSizes size, int label)

Compute the variance of all pixels in "im" identified by "mask". More...

Detailed Description

HxValue L_HXIMAGEREP HxIdentMaskVariance ( HxImageRep im,

HxImageRep mask,

HxPoint p,

HxSizes size,

int label

)

Compute the variance of all pixels in "im" identified by "mask".
"mask" is assumed to be an identification image with pixel type short. The function considers all pixels within the area starting at point "p" with given "size" and a value equal to label.
Implementation specifics :

Pattern : Export operation with an extra image
Variation : Translation invariant, 1 phase export operation with an extra image
The pixel functor : HxExportExtraIdentMaskStdev
Instantiations : HxInstExportExtraIdentMaskStdev_c

00015 { 00016 HxBoundingBox bb(size); 00017 bb = bb.translate(p); 00018 HxTagList tags; 00019 HxAddTag(tags, "maskVal", label); 00020 HxAddTag(tags, "boundingBox", bb); 00021 HxAddTag(tags, "exportVariance",true); 00022 im.exportOpExtra("identMaskStdev", mask, tags); 00023 HxValue v = HxGetTag(tags, "result", HxValue(0)); 00024 return v; 00025 }

Generated on Tue Feb 3 14:18:48 2004 for C++Reference by

Functions
HxValue L_HXIMAGEREP	HxIdentMaskVariance (HxImageRep im, HxImageRep mask, HxPoint p, HxSizes size, int label)
	Compute the variance of all pixels in "im" identified by "mask". More...