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Consider that just after the cone cells, there are other cells doing some computation / aggregate of cone signals. Don't forget that color is a brain construct.
by subb 2y ago
Consider that just after the cone cells, there are other cells doing some computation / aggregate of cone signals. Don't forget that color is a brain construct.
For those reasons (and others), there's often a strong disconnect between stimuli and perception, which means there's no such thing as a perceptual uniform color space.
- geon 2y agoThe eyes even do edge detection before sending signals to the brain.
- brookst 2y agoIs this correct? I thought edge detection was done in the primary visual cortex.
- subb 2y agoSidestepping what is defined as an "edge", quite a lot of work is done in the retina, including differential computation across cones - some "aggregator" cells will fire when it detect lines, movement, etc. You can read on ganglion cells, bipolar cells and amacrine cells and see that a lot of preprocessing is done before even reaching the brain!
- geon 2y agohttp://www.rctn.org/bruno/psc129/lecture-notes/vis-info.html#:~:text=%E2%80%9CEdge%2520detection%E2%80%9D&text=Thus%252C%2520activity%2520among%2520the%2520array,of%2520edges%2520in%2520a%2520scene http://www.rctn.org/bruno/psc129/lecture-notes/vis-info.html....