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. Author manuscript; available in PMC: 2009 May 1.
Published in final edited form as: Ophthalmic Physiol Opt. 2008 May;28(3):204–217. doi: 10.1111/j.1475-1313.2008.00537.x

Figure 5.

Figure 5

Cartooning. a) Overlaid full-colour views of the ball game and hand game. b) Edge filter output with the ball game view as input. White and black edges appear on a field of grey. c) Cartooned ball game edges over the full-colour hand game. The bipolar edges stand out against light and dark backgrounds. d) The same scene with just white edges (not used in this study). Note the difficulty of seeing them against the bright sleeves. e) Hand game edges over the full-colour ball game. f) Both views cartooned. Only the white edges are used for this condition.