quantization$500624$ - translation to greek
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quantization$500624$ - translation to greek

COMPRESSION TECHNIQUE INVOLVED IN IMAGE PROCESSING
Quantization matrix; Quantization matrices; Image quantization; Quantisation matrix; Quantisation matrices

quantization      
n. κβαντισμός

Definition

quantize
or quantise
¦ verb
1. Physics form into quanta; make subject to quantum theory.
2. Electronics approximate (a continuously varying signal) by one whose amplitude is restricted to prescribed values.
Derivatives
quantization noun
quantizer noun

Wikipedia

Quantization (image processing)

Quantization, involved in image processing, is a lossy compression technique achieved by compressing a range of values to a single quantum (discrete) value. When the number of discrete symbols in a given stream is reduced, the stream becomes more compressible. For example, reducing the number of colors required to represent a digital image makes it possible to reduce its file size. Specific applications include DCT data quantization in JPEG and DWT data quantization in JPEG 2000.