how to extract exif data from jpeg

First to understand what is the image of EXIF information EXIF is an image file format that has exactly the same data storage as the JPEG format. In fact, the EXIF format is a digital photo inserted in the header of the JPEG format. Including the

Read_exif_data(PHP 4)Read_exif_data -- Reads header information stored in TIFF and JPEG imagesDescriptionArray exif_read_data (string filename, string sections, bool arrays, bool thumbnail)Note: The read_exif_data () function is an alias for

PHP writes and reads image user-defined information _ exif or something? PHP image Requirement description: PHP is used to optimize image files, but this optimization process can only be performed once. secondary operations will cause irreparable

The image format is used to store images on a computer. Common storage formats include BMP, JPG, Tiff, GIF, PCX, TGA, EXIF, fpx, SVG, PSD, CDR, PCD, DXF, UFO, EPS, AI, raw, etc. BMP Image File Format BMP is an image file format unrelated to hardware

Feature overview about feature Features:　 Input/output:　 Provides different loading/saving operations　 Load and save it as JPEG (RGB, grayscale, YCbCr, CMYK, ycbcrk) format to the file (with also 1/2, 1/4 and 1/8 subsizes for fast preview ).

AspJpeg is a powerful image processing component based on the Microsoft IIS environment, and there are not many Chinese articles on the network for detailed and in-depth introduction, even if there is a general only involves picture thumbnails and

Read_exif_data (PHP 4) Read_exif_data--Reads header information stored in TIFF and JPEG images Description Array Exif_read_data (string filename, string sections, bool arrays, bool thumbnail) Note:the Read_exif_data () function is a alias for

1, what is AspJpeg? AspJpeg is a powerful image processing component based on the Microsoft IIS environment, and there are not many Chinese articles on the network for detailed and in-depth introduction, even if there is a general only involves

Recently fascinated by the Www.wechall.net website, there are some computer-related problems challenges. There are many types of topics, such as: Encryption and decryption, steganography, network attack and defense, fun programming, mathematical

This article is originally from abroad this article: PHP performance Evolution 2016, thanks to the high-availability architecture of the public number translated into the Chinese version, here is reproduced in the highly available architecture