diff options
Diffstat (limited to 'libjpegtwrp/rdjpgcom.1')
-rw-r--r-- | libjpegtwrp/rdjpgcom.1 | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/libjpegtwrp/rdjpgcom.1 b/libjpegtwrp/rdjpgcom.1 deleted file mode 100644 index 2bba04e1a..000000000 --- a/libjpegtwrp/rdjpgcom.1 +++ /dev/null @@ -1,54 +0,0 @@ -.TH RDJPGCOM 1 "11 October 1997" -.SH NAME -rdjpgcom \- display text comments from a JPEG file -.SH SYNOPSIS -.B rdjpgcom -[ -.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 \-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 |