A neural field model for color perception unifying assimilation and contrast
Fig 6
Connectivity kernel in 3D physical and color space.
Left. W1 defined with r0 = 0 and c0 = 1. Right. W2 defined with r0 = 0 and c0 = .5. The color bar extends between −1 and 1, going from dark green (negative values, strong inhibition) to dark orange (positive values, strong excitation). We provide an interactive 3D animation of the connectivity kernels ω(r0, c0, ⋅, ⋅) for all values of in S1 File. For varying r0, the kernel is just spatially translated along r0. However, for varying c0, the positive and negative gaussian kernels in f follow c0 and −c0, collide when c0 goes through zero, then exchange of position when |c0| grows again.