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.
解释
JPEG uses a lossy compression algorithm, and in doing so reduces the file size of an image.