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All pixels that belong to a connected region in contact with image boundaries are set to FALSE.
px.remove_outer(px)
a pixset
Simon Barthelme
cimg.limit.openmp() im <- draw_circle(imfill(100,100),c(0,50,100),c(50,50,50),radius=10,color=1) plot(im) as.pixset(im) %>% px.remove_outer %>% plot
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