Shulou(Shulou.com)06/02 Report--

This article mainly explains "what is a file with a .jpg extension". The content in the article is simple and clear, and it is easy to learn and understand. let's go deep into the editor's train of thought. Let's study and learn what files with the .jpg extension are usually.

The extension jpg is a file, usually an image file. JPEG is the product of the JPEG standard, which is formulated by the International Organization for Standardization (ISO) and is a compression standard for continuous-tone still images. The JPEG format is the most commonly used image file format, with the suffix .jpg or .jpeg.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

The extension jpg is a file, usually an image file. JPEG is the product of the JPEG standard, which is formulated by the International Organization for Standardization (ISO) and is a compression standard for continuous-tone still images. The JPEG format is the most commonly used image file format, with the suffix .jpg or .jpeg.

The performance of JPEG, measured by the ratio of quality to bit rate, is quite superior.

Its advantages are:

It supports extremely high compression ratio, so the download speed of JPEG images is greatly accelerated. It can easily deal with 16.8m colors and can reproduce full-color images well.

In the process of image compression, the image format allows free choice between the minimum file size (lowest image quality) and the maximum file size (highest image quality). The file size of this format is relatively small, the download speed is fast, and it is beneficial to transfer when the bandwidth is not "rich".

Extended data

JPEG format can be divided into three formats: standard JPEG, progressive JPEG and JPEG2000.

1. Standard JPEG format; this type can only display images in order from top to bottom when downloading a web page, and the full picture can not be seen until all the image materials have been downloaded.

2. Progressive JPEG; this type of download in the web page, first presents the rough appearance of the image, and then slowly presents the complete content, and saved into a progressive JPG format of the document is smaller than the standard JPG format, so if you want to use images on the web page, you can use this format.

3. JPEG2000; it is a new generation of image compression method, which has higher compression quality and can improve the mosaic phenomenon and position disorder caused by signal instability in wireless transmission, and improve the quality of transmission.

Thank you for your reading, the above is the ".jpg file extension is usually what a file" of the content, after the study of this article, I believe that you have a deeper understanding of the file extension .jpg file is usually what this problem, the specific use of the need for you to practice and verify. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.