Some types of files are themselves stored in a compressed format, such as what

Some types of files themselves are stored in a compressed format, such as jpg files; jpg files generally refer to the JPEG format, which is a product of the JPEG standard. This standard was developed by the International Organization for Standardization and is oriented to continuous-tone still images. A compression standard.

Some types of files themselves are stored in a compressed format, such as jpg files.

JPG files generally refer to the JPEG format, which is a product of the JPEG standard. This standard was formulated by the International Organization for Standardization (ISO) and is a compression standard for continuous-tone still images. JPEG format is the most commonly used image file format, with the suffix .jpg or .jpeg.

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

1. Standard JPEG format; this type can only display images from top to bottom when downloading a web page. Only when all image data is downloaded can the full image be seen.

2. Progressive JPEG; when downloading a web page, this type first presents a rough appearance of the image, and then slowly presents the complete content, and documents saved in the progressive JPG format are faster than files saved in the progressive JPG format. Documents in the standard JPG format are smaller, so if you want to use images on a web page, you can use this format more often.

3. JPEG2000; it is a new generation of image compression method with higher compression quality. It can improve the mosaic phenomenon and positional disorder caused by signal instability during wireless transmission, and improve the quality of transmission. .

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