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Kernel based neighbourhood operation on 2D images

The pattern loops over all pixels in the image and applies the neighbourhood functor to each pixel. The result is written to the corresponding position in the result image.

Instantiations of the pattern are invoked via

• HxImageRep::neighbourhoodOp(HxImageRep,HxString,HxTagList&)

Instantiation is done via the HxImgFtorKernelNgb2d functor, with the following template parameters:

• DstImgSigT is the signature type of the destination image
• SrcImgSigT is the signature type of the source image
• KerImgSigT is the signature type of the kernel image
• NgbT is the type of the neighbourhood functor

The requirements for the NgbT parameter and an example of its use are given in the sections on variations:

• 1 phase, loop neighbourhood operation with kernel
• 2 phase, loop neighbourhood operation using a kernel
• N phase, loop neighbourhood operation using a kernel

Tags for NgbT variations:

• PhaseCategory : HxTag1Phase or HxTag2Phase or HxTagNPhase
• IteratorCategory : HxTagCnum or HxTagLoop

For further reference :

• Method frame : HxMfNgb
• HxImageData member : HxImageData::neighbourhoodOp(HxImageData*,HxImageData*,HxString,HxTagList&)

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