Computer Science for IGCSE & O level - Data Representation (Section 12 - No. 16)
Which of the following best describes the operation of JPEG compression on an image?
It is a lossless compression technique.
It reduces the file size by discarding some of the image data.
It increases the image resolution.
It is only used for text files.
Giải thích
JPEG uses a lossy compression algorithm, and in doing so reduces the file size of an image.