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# What is the best dithering algorithm?

## What is the best dithering algorithm?

Break that graph down for me a little.

Dither Algorithm Noise Reduction Highest Peak
Goodhertz “High” 8 dB 24 dB
POW-R #3 7 dB 27 dB
FabFilter Pro-L “Weighted” 7 dB 27 dB
Goodhertz “Optimal” 6 dB 16 dB

## How does Floyd Steinberg dithering work?

Floyd–Steinberg dithering is an image dithering algorithm first published in 1976 by Robert W. Floyd and Louis Steinberg. The diffusion coefficients have the property that if the original pixel values are exactly halfway in between the nearest available colors, the dithered result is a checkerboard pattern.

Should you dither before mastering?

Dithering is best left for the mastering process. This means that whenever a higher bit depth file is reduced to a lower bit depth file, dithering should be used to mask the effects of quantization distortion. The most common time this happens during post-production is during the mastering process.

### Is dithering necessary?

If you’re going from 32-bit fixed point (not floating point) to 24- or 16-bit, you should dither. However, if you’re bouncing your mix to a data-compression codec like MP3 or AAC, dithering is not necessary. Only dither when you render your audio to a lower bit-depth. Don’t dither before converting to MP3 or AAC.

### Should I dither before mastering?

Should I use dithering in mastering?

#### Which is the algorithm for dithering an image?

Aside from Riemersma (which walks through the pixels in a non-linear order) and Scolorq (which treats an entire image at once), they all use the same algorithm, only differing on the diffusion map that they use. There are many immediate problems one may notice in this picture, the most important being that it simply looks bad .

#### Is the dithering technique still used in photography?

Actually, dithering is still a surprisingly applicable technique, not just for practical reasons (such as preparing a full-color image for output on a non-color printer), but for artistic reasons as well.

Are there different algorithms for error diffusion dithering?

There exist different error diffusion dithers, but they all suffer from the same problem. Aside from Riemersma (which walks through the pixels in a non-linear order) and Scolorq (which treats an entire image at once), they all use the same algorithm, only differing on the diffusion map that they use.

## How does diffused error work in image dithering?

As the algorithm proceeds, the “diffused error” results in an alternating pattern of black and white pixels, which does a pretty good job of mimicking the “96 gray” of the section – much better just forcing the color to black over and over again.