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:
“Rome, the city of visible history, where the past of a whole hemisphere seems moving in funeral procession with strange ancestral images and trophies gathered from afar.”
—George Eliot [Mary Ann (or Marian)
“We picked each other from afar and knew
What hour of terror comes to test the soul,
And in that terror’s name obeyed the call,
And understood, what none have understood,
Those images that waken in the blood.”
—William Butler Yeats (1865–1939)
“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)