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Joint Photographic Experts Group 2000 (.jp2)

JPEG 2000 is a file format for encoding raster images created in 2000 by the Joint Photographic Experts Group to improve JPEG. It stands out to be one of the most scalable standards. Different parts of an image can be stored using diverse qualities.
JPEG 2000 supports progressive encoding, an efficient method for image encoding that displays the lower-quality recognizable version of an image during data transmission; the quality improves as more data bits arrive. It also delivers both lossy and lossless image compression which for JPEG it was only lossy.
JPEG 2000 also supports transparency in images and preserves higher quality than JPEG images for the same size. On the other hand, not all the major browser supports it and it has a CPU intensive encoding.

JP2 Specifications

Name Joint Photographic Experts Group 2000
File Extension(s) .jp2
Category Raster Images
Use For Multimedia Devices, digital cameras, mobile phones, printers and scanners, biometrics, medical imagery, and satellite images.
Developer Joint Photographic Experts Group
MIME Type(s) image/jp2 image/jpx image/jpm
License ISO 15444 is covered by patents, but the contributing companies and organizations agreed that licenses for its first part—the core coding system—can be obtained free of charge from all contributors.
File Sample(s) N/A
Compression lossless and lossy compression in a single compression architecture. Lossless compression is provided by the use of a reversible integer wavelet transform in JPEG 2000.
Max Dimensions 4,294,967,295×4,294,967,295 pixels
Color Modes
Mode Bits Description
Greyscale N/A JPEG 2000 has no distinct greyscale mode.
True color 8 and 16 Each pixel is described by the red, blue, and green color components.
Indexed color N/A JPEG 2000 does not offer an indexed color mode.
Greyscale with alpha N/A JPEG 2000 does not support an alpha channel.
True color with alpha 8 and 16 Each pixel is described by the red, blue, green and alpha color components.
Animation No
Transparency Yes
Interlacing Yes
Metadata Yes
Layers No
Multipage No