Images
When performing block-based coding for quantization, as in JPEG-compressed images, several types of artifacts can appear.
- Ringing
- Contouring
- Posterizing
- Staircase noise (aliasing) along curving edges
- Blockiness in "busy" regions (sometimes called quilting or checkerboarding)
Read more about this topic: Compression Artifact
Famous quotes containing the word images:
“TV gives everyone an image, but radio gives birth to a million images in a million brains.”
—Peggy Noonan (b. 1950)
“No healthy man, in his secret heart, is content with his destiny. He is tortured by dreams and images as a child is tortured by the thought of a state of existence in which it would live in a candy store and have two stomachs.”
—H.L. (Henry Lewis)
“A daydream is a meal at which images are eaten. Some of us are gourmets, some gourmands, and a good many take their images precooked out of a can and swallow them down whole, absent-mindedly and with little relish.”
—W.H. (Wystan Hugh)