The information that is housed in the metadata can be of any type, from the name of the company, to the name of the computer, through tags, modification dates, location, etc. These types of image metadata can be in various formats. Such as the camera with which a photograph was taken or the time it was taken.
The metadata of the photographs is extra data that is added to the files. It is available as a Perl library and a command line application. It is independent of the platform we use. This is a free and open source program for reading, writing and manipulating image, audio, video and PDF metadata. In the next article we are going to take a look at ExifTool.
decoding compressed and/or encrypted information from the indicated file types, calculating digest values for some information types, etc. The following modules/packages are recommended for specific features, e.g. Image::ExifTool is a Perl module with an included command-line application called exiftool for reading and writing meta information in a wide variety of files, including the maker note information of many digital cameras by various manufacturers such as Canon, Casio, FLIR, FujiFilm, GE, HP, JVC/Victor, Kodak, Leaf, Minolta/Konica-Minolta, Nikon, Nintendo, Olympus/Epson, Panasonic/Leica, Pentax/Asahi, Phase One, Reconyx, Ricoh, Samsung, Sanyo, Sigma/Foveon and Sony. Library and program to read and write meta information in multimedia files Install libimage-exiftool-perl by entering the following commands in the terminal: sudo apt update How to Install libimage-exiftool-perl in Ubuntu 18.04
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