What is JPG File Format
JPG is the file extension for one of the most popular image formats.
According to statistics on critical
web technologies, approximately 40 percent of all images on the web are
JPGs.
Size versus Quality
JPG images use a lossy compression method, which reduces their storage
size thereby reducing image quality. JPG excels when it comes to its
ability to achieve compression up to 10:1 without any noticeable
degradation in image quality. This makes JPG images ideal for
non-professional casual and web photography.
Differences between JPG and JPEG
JPG and JPEG are generally confused as both are the file extensions of a
lossy graphics format, however JPEG also refers to the compression method
used by said file format, Joint Photographic Experts Group.
Joint Photographic Experts Group, belonging to ISO, is the name of the
subcommittee that helped to create the JPEG standard, as well as other
still image encoding standards, always under the larger group ISO.
ISO sets the standards for many things, including digital images, in an
effort to provide users and consumers with products and services of the
highest quality.
It is important to understand that the JPEG compression method can be
saved with different file extensions: JPG, JPEG, as the extensions simply
tell other programs or applications that they are dealing with an image
file that was saved using the compression method JPEG.
Advantages of JPG
Basically, the goal is not to negatively affect the speed and performance
of a website that contains images, by using large images that waste
resources and take a long time to load in the interface.
In fact, all website owners need to optimize their images in some way to
reduce their image file sizes and preserve load times and user experience.
This is where the JPG enters into play, since, as mentioned above, the
images undergo compression that makes them more friendly with the
resources and loading times of the websites.