jpeq

[kaat2001.livejournal.com]

вот Фотошоп умеет сохранять jpeg двумя способами - progressive и baseline. Такие файлы по разному загружаются.

Кто-нить знает, как узнать, каким способом был сохранен файл, не открывая его через браузер? И где про это еще можно спросить?
Очень надо.

Comments

[morruth.livejournal.com]

rdjpgcom -verbose ~intel/pic/CF/dcim/100canon/img_0007.jpg
JPEG image is 1600w * 1200h, 3 color components, 8 bits per sample
JPEG process: Baseline

утилита из libjpeg

[kaat2001.livejournal.com]

так, а что такое libjpeg?

[morruth.livejournal.com]

wajig detail libjpeg62
Package: libjpeg62
Priority: optional
Section: libs
Installed-Size: 192
Maintainer: Bill Allombert <ballombe@debian.org>
Architecture: i386
Source: libjpeg6b
Version: 6b-10
Depends: libc6 (>= 2.3.2.ds1-4)
Filename: pool/main/libj/libjpeg6b/libjpeg62_6b-10_i386.deb
Size: 80920
MD5sum: 1517db939ba3894b12298d8fd19cbc10
Description: The Independent JPEG Group's JPEG runtime library
The Independent JPEG Group's JPEG library is a library for handling
JPEG files.
.
This package contains the shared library.
Tag: devel::library, role::sw:shlib, works-with::image:raster

ARCHIVE LOCATIONS
=================

The "official" archive site for this software is ftp.uu.net (Internet
address 192.48.96.9). The most recent released version can always be found
there in directory graphics/jpeg. This particular version will be archived
as ftp://ftp.uu.net/graphics/jpeg/jpegsrc.v6b.tar.gz. If you don't have
direct Internet access, UUNET's archives are also available via UUCP; contact
help@uunet.uu.net for information on retrieving files that way.

Numerous Internet sites maintain copies of the UUNET files. However, only
ftp.uu.net is guaranteed to have the latest official version.

You can also obtain this software in DOS-compatible "zip" archive format from
the SimTel archives (ftp://ftp.simtel.net/pub/simtelnet/msdos/graphics/), or
on CompuServe in the Graphics Support forum (GO CIS:GRAPHSUP), library 12
"JPEG Tools". Again, these versions may sometimes lag behind the ftp.uu.net
release.