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
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And in that terrors name obeyed the call,
And understood, what none have understood,
Those images that waken in the blood.”
—William Butler Yeats (18651939)
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“no images of pastoral will,
But fear, thirst, hunger, and huddled chill.”
—James Vincent Cunningham (19111985)