autocrop | R Documentation |
Autocrop image region
autocrop(im, color = color.at(im, 1, 1), axes = "zyx")
im |
an image |
color |
Colour used for the crop. If missing, the colour is taken from the top-left pixel. Can also be a colour name (e.g. "red", or "black") |
axes |
Axes used for the crop. |
#Add pointless padding padded <- pad(boats,30,"xy") plot(padded) #Remove padding autocrop(padded) %>% plot #You can specify the colour if needs be autocrop(padded,"black") %>% plot #autocrop has a zero-tolerance policy: if a pixel value is slightly different from the one you gave #the pixel won't get cropped. A fix is to do a bucket fill first padded <- isoblur(padded,10) autocrop(padded) %>% plot padded2 <- bucketfill(padded,1,1,col=c(0,0,0),sigma=.1) autocrop(padded2) %>% plot
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