JPEG and LEAD File Comments

You can save comments in JPEG files and in progressive LEAD CMP files (but not in non-progressive CMP files). When reading or updating these comments, you can specify only one type of comment.

Value

Meaning

CMNT_SZDESC

[3] Description of the image. This a variable-length character string. The maximum length is 64K.

Please note that LEADTOOLS also supports IPTC Comments, which can be saved inside JPEG files. For more information, refer to IPTC Comments.

For more information about file comments, refer to L_SetComment, L_GetComment, L_DeleteComment, and L_ReadFileComment.

For more information, refer to:

Compression Using LEAD and JPEG Formats

JPEG and LEAD Compressed Formats

Introduction: Bitmaps in Memory and in Files

Programming with JPEG 2000 Features

Raster Image Functions: Working with JPEG 2000

JPEG 2000 File Comments

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