octave - Saving image in plot window after placing points in plot -
using octave, able show image , plot red circles on it, follow: tux = imread('tux.png'); imshow(tux); hold on; plot(100,100,'r','markersize', 10); plot(150,200,'r','markersize', 10); the above code display window: my question is: how can save image being showed inside window? thank much! pretty simple. use: print -djpg image.jpg print command in octave allows capture what's seen in current figure window. -d specifies output device want write to. there multiple "devices" can use save file... eps, ps, tex, etc. device can image writer, , here chose jpeg. can choose other valid image formats supported octave. take @ link provided above more details. after, specify file name want save plot to. in case, chose image.jpg . you can take @ saveas . make sure handle current figure first before doing so: h = gcf; saveas(h, "image.jpg"); also... more point-and-click approach go file -> s...