Raster
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.
Back
to the formats page
Each of the following product lines includes
at least one product with the above functionality:
Not all products may include all of the
above functionality. Special notations have been added
to help you determine what product you need. If you
have any questions, contact sales@LEADTOOLS.com.
LEADTOOLS Sales:
704-332-5532 | sales@leadtools.com
LEADTOOLS Support: 704-372-9681 | support@leadtools.com
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