3 ms·
It's a dithering effect for sure. Drop shadows aren't actually shadows, either :)
by betenoire 3y ago
It's a dithering effect for sure. Drop shadows aren't actually shadows, either :)
- kookamamie 3y ago"Dithering" is adding noise to randomize quantization errors and to hide banding. The OPs post looks like just adding noise for getting a noisy look.
- itishappy 3y agoIt's the same effect! OP may have done this for style, but the effect also happens to hide any banding that may have be present.
- Someone 3y agoIt may look similar in these high resolution pictures, but it’s different. With dithering, there’s negative correlation between the noise added to neighboring pixels (if one gets a bit blacker, at least one of its neighbors is more likely to be made a bit whiter). This adds Perlin noise. With that, I think that correlation is zero or, possibly, positive.
- itishappy 3y agoThat's how good dithering works, but adding random noise is still dithering. https://commons.wikimedia.org/wiki/User:Gerbrant/Dithering_algorithms https://commons.wikimedia.org/wiki/User:Gerbrant/Dithering_a...
- coldtea 3y agoNot the same. Not in how it's achieved (merely adding grain isn't dithering), and not in the final effect. Google Images "dithering" for examples of how dithering looks.
- deleted 3y ago[deleted]
- itishappy 3y agoIt's bad dithering, but it's still dithering. Random noise gives poor but fast results. Error diffusion is great but slow (pixels are processed sequentially). My favorite technique is using a blue-noise matrix because it gives great results quickly. Creating the matrix is tricky, but you can do it offline and reuse it.
- whilenot-dev 3y agoRather looks like a risograph effect to me