Home / File format / jpeg

JPEG file format

File extension

.jpeg

File category

images

Description

JPEG – is a popular graphic format, which is characterized by a high degree of compression, which leads to a decrease in image quality. It uses the technology of encoding of smooth color renditions, providing the ability to reduce the amount of data frequently during the recording of the image. Because of the small size it is requested by the owners of websites, allowing you to save the traffic effectively. It is also frequently used in memory cards of digital video cameras. The JPEG algorithm is optimally suitable for compressing photographs and pictures, in which realistic scenes with little contrast of colors are present. It is not recommended to use this format for compression of drawings and various kinds of graphics, since a strong contrast between a number of closely located pixels provokes the appearance of visible artifacts.

Technical details

The procedure for compressing the digital images in JPEG format is carried out in several stages. First, the photo is transformed into a color space YCbCr, then it is divided into squares to determine the upper range of the color spectrum. Finally, the colors and brightness are coded. JPEG uses a "lossy" compression system and discrete cosine transform technology. The format acts simultaneously as the standard of ISO and the International Telecommunication Union. The file compression ratio is in the range from 10:1 to 100:1. In this case, the reduction in image quality can vary from insignificant to substantial.

Programs

Adobe Photoshop

Apple Preview

Corel Paint Shop Pro

Main program

MS Paint

Developer

The JPEG Committee

MIME type

image/jpeg

jpeg converter

jpeg to bmp jpeg to cgm jpeg to cur jpeg to fax jpeg to gif jpeg to hdr jpeg to ico jpeg to pbm jpeg to pcx jpeg to pgm jpeg to png jpeg to pnm jpeg to ppm jpeg to psb jpeg to svg jpeg to tiff jpeg to xmp jpeg to xwd jpeg to pdf jpeg to dxf jpeg to jpg jpeg to tif

jpeg converter

arw to jpeg bmp to jpeg cgm to jpeg cr2 to jpeg crw to jpeg cur to jpeg dcm to jpeg dcr to jpeg dng to jpeg emf to jpeg fax to jpeg gif to jpeg hdr to jpeg ico to jpeg nef to jpeg orf to jpeg pbm to jpeg pgm to jpeg pict to jpeg png to jpeg pnm to jpeg psd to jpeg pwp to jpeg raf to jpeg sfw to jpeg svg to jpeg tga to jpeg tiff to jpeg tim to jpeg wpg to jpeg xcf to jpeg xwd to jpeg html to jpeg pdf to jpeg dxf to jpeg eps to jpeg pcd to jpeg pct to jpeg wmf to jpeg jpg to jpeg tif to jpeg htm to jpeg