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Fig. 7. (A) Image of cuttlefish showing disruptive coloration on sand (i.e. no
camouflage). (B) Filtered image using same LoG edge-detection algorithm as in
Fig. 6. (C) LoG-filtered image
of substrate only. This figure demonstrates that in addition to a human
observer being able to discern the animal on the sand substrate easily, the
LoG shows that the animal's false edges stand out conspicuously. This makes
parts of the animal's body distinct objects on sand.
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