Error in CropImageFilter example

Hello everybody,
I was adapting this example to my project:

But I think that it is wrong within this statement

// The SetBoundaryCropSize( cropSize ) method specifies the size of
// the boundary to be cropped at both the uppper & lower ends of the
// image eg. cropSize/2 pixels will be removed at both upper & lower
// extents

It seems to me that the filter crops “cropSize” pixels from the top and “cropSize” from the bottom, not half of them as the example specify.

I thought It may be interesting for you to check and maybe fix the error in the example.

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I created a PR to fix this. Thanks for the report.

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