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jpg
JPG file format
File extension
.jpg
File category
Description
JPG – 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 JPG 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 JPG 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
Microsoft Windows Photo Gallery Viewer
Adobe Photoshop
Adobe Suite
Apple Preview
Corel Paint Shop Pro
Most web browsers
Developer
The JPEG Committee
MIME type
image/jpeg
jpg converter
arw to jpg
bmp to jpg
cgm to jpg
cr2 to jpg
crw to jpg
cur to jpg
dcm to jpg
dcr to jpg
dng to jpg
emf to jpg
fax to jpg
gif to jpg
hdr to jpg
ico to jpg
jpeg to jpg
nef to jpg
orf to jpg
pbm to jpg
pict to jpg
png to jpg
pnm to jpg
psd to jpg
pwp to jpg
raf to jpg
sfw to jpg
svg to jpg
tga to jpg
tiff to jpg
tim to jpg
wpg to jpg
xcf to jpg
html to jpg
pdf to jpg
dxf to jpg
eps to jpg
pcd to jpg
pct to jpg
wmf to jpg