cimg.limit.openmp()
#Find the lines along the boundary of a square
px <- px.square(30,80,80) %>% boundary
plot(px)
#Hough transform
hough_line(px,ntheta=200) %>% plot
df <- hough_line(px,ntheta=800,data.frame=TRUE)
#Plot lines with the highest score
plot(px)
with(subset(df,score > quantile(score,.9995)),nfline(theta,rho,col="red"))
plot(boats)
df <- hough_line(boats,ntheta=800,data=TRUE)
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