PATTERN
Dispersed-dot dithering uses a set matrix of values instead of a random algorithm. This makes the image much clearer because the tones all have the same “dither pattern”, which makes it easier to discern between the available tones.
Bayer matrices are typically used for dispersed-dot dithering because of their nice, even distribution.
A set matrix fixes the number of possible tones, similar to quantization from the last issue. This actually increases the clarity of the image colors versus normal grayscale by creating clear distinctions between them. Image shape detail is still often lost.
BRIDGE CITY
Do you know how many bridges are in Portland aka “Bridge City”?
While you guess I'll tell you that this bridge (idk which one it was oops) is a great demonstration of the good parts of dithering.
Large, flat, images with slight gradients on them look great under dispersed dithering because the contrast of the dithering patterns actually draws out the contrast of the gradient, which would otherwise be hard to consciously notice. Just look at that sky!
It's 12. That doesn't actually seem like a lot, but who am I to question Bridge City?