mirror of
https://foundry.openuru.org/gitblit/r/CWE-ou-minkata.git
synced 2025-07-20 12:19:10 +00:00
Reorganization of SDK placement and references for CWE-ou
Phase 1: reorganize StaticSDK directories to better reflect origin of each SDK, platform, etc. Add SDK-binary as submodule.
This commit is contained in:
@ -0,0 +1,63 @@
|
||||
.TH RDJPGCOM 1 "02 April 2009"
|
||||
.SH NAME
|
||||
rdjpgcom \- display text comments from a JPEG file
|
||||
.SH SYNOPSIS
|
||||
.B rdjpgcom
|
||||
[
|
||||
.B \-raw
|
||||
]
|
||||
[
|
||||
.B \-verbose
|
||||
]
|
||||
[
|
||||
.I filename
|
||||
]
|
||||
.LP
|
||||
.SH DESCRIPTION
|
||||
.LP
|
||||
.B rdjpgcom
|
||||
reads the named JPEG/JFIF file, or the standard input if no file is named,
|
||||
and prints any text comments found in the file on the standard output.
|
||||
.PP
|
||||
The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file.
|
||||
Although the standard doesn't actually define what COM blocks are for, they
|
||||
are widely used to hold user-supplied text strings. This lets you add
|
||||
annotations, titles, index terms, etc to your JPEG files, and later retrieve
|
||||
them as text. COM blocks do not interfere with the image stored in the JPEG
|
||||
file. The maximum size of a COM block is 64K, but you can have as many of
|
||||
them as you like in one JPEG file.
|
||||
.SH OPTIONS
|
||||
.TP
|
||||
.B \-raw
|
||||
Normally
|
||||
.B rdjpgcom
|
||||
escapes non-printable characters in comments, for security reasons.
|
||||
This option avoids that.
|
||||
.PP
|
||||
.B \-verbose
|
||||
Causes
|
||||
.B rdjpgcom
|
||||
to also display the JPEG image dimensions.
|
||||
.PP
|
||||
Switch names may be abbreviated, and are not case sensitive.
|
||||
.SH HINTS
|
||||
.B rdjpgcom
|
||||
does not depend on the IJG JPEG library. Its source code is intended as an
|
||||
illustration of the minimum amount of code required to parse a JPEG file
|
||||
header correctly.
|
||||
.PP
|
||||
In
|
||||
.B \-verbose
|
||||
mode,
|
||||
.B rdjpgcom
|
||||
will also attempt to print the contents of any "APP12" markers as text.
|
||||
Some digital cameras produce APP12 markers containing useful textual
|
||||
information. If you like, you can modify the source code to print
|
||||
other APPn marker types as well.
|
||||
.SH SEE ALSO
|
||||
.BR cjpeg (1),
|
||||
.BR djpeg (1),
|
||||
.BR jpegtran (1),
|
||||
.BR wrjpgcom (1)
|
||||
.SH AUTHOR
|
||||
Independent JPEG Group
|
Reference in New Issue
Block a user