Multimedia Compression Question:
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What is JPEG Encoder?
Answer:
- JPEG encoder has three main blocks namely, Forward Discrete Cosine Transform, Quantizer and Entropy Encoder.
- JPEG encoder is the main component for lossless and hierarchical encoders.
- It is suitable for gray scale and color images.
- Each image is divided into 8 x 8 blocks.
- A group of 4 tables are specified by JPEG.
- If the table has quality value with 1, then the quality is best and compression is lowest.
- If the table has quality value with 2, then the quality is best and compression is highest.
- JPEG encoder is the main component for lossless and hierarchical encoders.
- It is suitable for gray scale and color images.
- Each image is divided into 8 x 8 blocks.
- A group of 4 tables are specified by JPEG.
- If the table has quality value with 1, then the quality is best and compression is lowest.
- If the table has quality value with 2, then the quality is best and compression is highest.
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