Which of the following is a lossy compression type?

JPEG 2000 is indeed a lossy compression type. Lossy compression methods reduce file size by permanently eliminating certain information, particularly details that are less perceivable to the human eye. This means that when the image is decompressed, it will not be identical to the original; some data has been intentionally discarded to achieve a smaller file size.

JPEG 2000, specifically, offers high compression ratios and improved quality compared to older lossy formats, such as standard JPEG, which makes it suitable for applications that require high-quality images with manageable file sizes. This technique is particularly useful in scenarios like web images, where fast loading times are important, but a perfect reproduction of the original image is not critical.

In contrast, options like PNG, TIFF, and RAW generally utilize lossless compression methods or are not inherently compressed formats. PNG is designed for lossless compression, retaining all original image data. TIFF can support both lossy and lossless compression, typically being used for high-quality image storage, and RAW represents unprocessed data from a camera sensor, preserving all captured details for maximum quality.