Position of an object within the two-dimensional space of the retina, augmented with depth information from stereoscopy. (the comparison of the images received from the 2 eyes). The absolute position of something in visual space and the relative position of multiple objects in that space.
The changes in position of an object or group across time in absolute terms and in relation to others.
the mix of colour-related parameters (red vs green and blue vs yellow ) derived initial from the cones in the retina.
the relative light intensity
Predominantly related to the spatial character of the outline of an object
spatial patterns of brightness and colour
the spatial orientation of a shape (horizontal, vertical, angled, tilted toward or away)
relative size of an object
The 3-dimensional contours of the surface of an object
the simultaneous visibility of multiple objects at the same 2 dimensional location in the image field
sections of lower brightness interpreted as shadows cast by objects.
Perception organizes visual input into figures standing out against a background.
This is not really a perceptual feature, but rather a useful attribute of vision. As the eye focussed on objects at a certain depth, things at other depths fall out of focus, providing a fovea-like effect in the depth dimension.
The visual cortex has extra sensitivity to specific combinations of these features. For example, the human vision system devotes a lot of resources to the recognition of faces which depends on a number of these feature in precise combination.