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:
“How clean the sun when seen in its idea,
Washed in the remotest cleanliness of a heaven
That has expelled us and our images . . .
The death of one god is the death of all.
Let purple Phoebus lie in umber harvest,
Let Phoebus slumber and die in autumn umber....”
—Wallace Stevens (1879–1955)
“The mind loves the unknown. It loves images whose meaning is unknown, since the meaning of the mind itself is unknown.”
—René Magritte (1898–1967)
“... I am an instrument in the shape/of a woman trying to translate pulsations/into images for the relief of the body/and the reconstruction of the mind.”
—Adrienne Rich (b. 1929)