Image File Formats: EXIF Exif Formats (TIFF and JPG)

Exif is a standard for image files created with digital cameras and other input devices. The standard is set by the Japan Electronic Industry Development Association, and formally it is called the Digital Still Camera Image File Format Standard.

Exif files contain either uncompressed TIFF images or compressed JPEG images. In addition, these files can contain many comment fields of various types. You can use the L_ReadFileComment function to read comments in an existing file. Before writing a file, you can use the L_SetComment function to create an array of comments to be saved in the file.

LEADTOOLS reads and writes the following Exif formats:

• TIFF: This is a tag-based file format designed to promote universal interchanges of digital image data. You can save any image size.
• LEADTOOLS can read and write 24 bits per pixel.
• JPG: This is the JPEG format with YUV 4:2:2 sampling. You can save any image size.
• LEADTOOLS can read and write 24 bits per pixel.

An Exif JPG file can also contain a stamp (thumbnail) image, which is a small copy of the main image. The stamp stamp size has been restricted to 160x120x24. That limitation has been imposed in order to conform with the ExifR98 interoperability rules imposed by Japanese digital camera manufacturers.
If you are working with uncompressed (TIFF) Exif files, the stamp size is (width x height x 24 bpp), with no limitations on width and height.

 

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The following products included the above functionality:

Pricing Structure

Product	Price	Purchase	Try
LEADTOOLS Imaging Pro	†$995		Free Trial
LEADTOOLS Document Imaging	*$2495		Free Trial
LEADTOOLS Medical Imaging	*$4495		Free Trial
LEADTOOLS Vector Imaging	†$1995		Free Trial

* Deployment requires runtime license. Marked toolkits require runtime licensing based on the deployment of the application you develop. Several purchase options are available. For more information, please contact oemsales@leadtools.com or call a LEAD sales representative. Click here for more information on LEADTOOLS Runtime Licensing requirements.