"Error Diffusion Dithering" is a common means of improving the appearance of an image that has been constrained to use only a few colors or pixel values.
Use this tool to dither your own image.
| Upload an image of your own... | ||
| Or point the tool to a valid web address: | ||
| Select a dithering algorithm: | ||
| Convert to grayscale: | ||
| Rescale image resolution relative to the window: | ||
| Set the # color bands: | ||
| Set background grayscale: |