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:
“The world is for thousands a freak show; the images flicker past and vanish; the impressions remain flat and unconnected in the soul. Thus they are easily led by the opinions of others, are content to let their impressions be shuffled and rearranged and evaluated differently.”
—Johann Wolfgang Von Goethe (1749–1832)
“And images of self-confusednesses
Which hurt imaginations only see—
And from this nothing seen, tells news of devils,
Which but expressions be of inward evils.”
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“In an age of synthetic images and synthetic emotions, the chances of an accidental encounter with reality are remote indeed.”
—Serge Daney (1944–1992)