Beginning with the cornea and the lens which focuses the images on the retina, our active vision begins with bottom up processing (features, patterns, and objects). After many saccades, scan paths, and fixations on the image we gain more vivid color, shape, motion, and spacial layout (feature channels). The more effective feature channels are listed by a hierarchy of effectiveness. These channels are all pre-attentive (we dont pay attention to this because of we are looking ahead [just in time]) Our visual working memory tells us this is a chameleon. Yet, this is no normal chameleon! The designer made the wires red. This was a good use of the "pop out effect" enabling the user to see that and realize easily that this is a robotic creation. The shape is a chameleon, yet there are features that most would relate to technology, robotic (man made). Color, shape, and spacial layout are the most widely used visual feature channels in this image. The white is very effective with the black background. the light shining off the metal is good at demonstrating depth, and the shape is important because it is a common pose a chameleon would have.
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