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:
“What images are these
That turn dull-eyed away,
Or shift Time’s filthy load,
Straighten aged knees,
Hesitate or stay?
What heads shake or nod?”
—William Butler Yeats (1865–1939)
“I tell it stories now and then
and feed it images like honey.
I will not speculate today
with poems that think they’re money.”
—Anne Sexton (1928–1974)
“For thousands the world is a freak show, the images flicker past and disappear, the impressions remain flat and disconnected in the soul. Thus, they are easily led by the opinions of others, are willing to let their impressions be reordered, rearranged, and reevaluated.”
—Johann Wolfgang Von Goethe (1749–1832)