Posterization

Posterization or posterisation of an image is the conversion of a continuous gradation of tone to several regions of fewer tones, causing abrupt changes from one tone to another. This was originally done with photographic processes to create posters. It can now be done photographically or with digital image processing, and may be deliberate or an unintended artifact of color quantization.

Posterization is often the first step in vectorization (tracing) of an image.

Back to Colour & Editing →

Source: Wikipedia · Image: Wikimedia Commons · CC BY 2.5

PIXCS

The photo-editing numbers, made simple — free calculators for image resizing, aspect ratios, DPI and print size, megapixels, file size, and aspect-ratio cropping, plus plain-English guides to resolution, file formats, color, and the basics of editing software.

Get new guides by emailOccasional emails. No spam. Unsubscribe anytime.

InformationAbout Contact Privacy Policy Terms of Service Disclaimer Affiliate Disclosure Cookie Policy

Every museum entry, image, and fact is drawn from Wikipedia and Wikimedia Commons, used under public-domain and Creative Commons licenses. No content is AI-generated.