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 Marker Types and How To Use Them

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T O P I C    R E V I E W
w2m Posted - Jun 18 2014 : 12:43:14

From the help file:

TIEMarkerList.MarkerType

Declaration
property MarkerType[idx:integer]:byte;

Description
Get marker type (JPEG_APP0 to JPEG_APP15 and JPEG_COM).

What are the JPEG_APP0 and JPEG_APP15 and JPEG_COM marker types?
How and why they are the marker types different and when should you use one or the other marker type?


Please add more info to the help file and provide some help.


Bill Miller
Adirondack Software & Graphics
Email: w2m@hughes.net
EBook: http://www.imageen.com/ebook/
Custom Commercial ImageEn Development
1   L A T E S T    R E P L I E S    (Newest First)
xequte Posted - Jun 18 2014 : 18:57:46
Hi

I'm not sure that you would generally need to access the JPEG markers directly. It is better to use the EXIF_* and XMP properties.

A good description of the JPEG markers is at:

http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/JPEG.html


Nigel
Xequte Software
www.xequte.com
nigel@xequte.com