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5.
Single JPEG Image
All IQinVision cameras can deliver single JPEG images. The JPEG image format is defined by the Joint
Photographic Experts Group and can be seen in ISO document 10918.
IQinVision cameras include a default comment in the JPEG header to identify the camera which created the
image. This comment consists of the six byte MAC address followed by a single byte which is the camera
product code.
5.1.
Requesting a single JPEG image
The simplest method to get a single frame of data is to use an http request to get an image. The basic URL
used to request a single JPEG image is:
http://<camera_ip>/now.jpg
This http request can be issued in a number of ways:
Using a browser.
Using WinInet calls on a Win32 platform. Please see
http://msdn.microsoft.com
and search for
WinInet for an overview of the provided functionality and interfaces.
Using PERL scripting. For talking over the web with Perl, the defacto standard is the LWP set of
modules. (LWP stands for "Library for WWW in Perl") Please see
http://www.cpan.org/
for LWP
documentation and examples.
Using direct TCP connection requests.
Regardless of the mechanism used to issue the http request, the camera will return the specified image in the
format requested.
