Chapter 5 Using The Picture Recording Function - Canon VB101 User Manual

Transmitting Video Images Using a Browser Only
Displaying Live Video from a Specified Angle
as Still Images
By specifying the camera angle as a parameter in the HTML code beforehand, you can display
the image from a specified camera angle. The example below displays a still image shot with the
camera panned right by 40 and tilted down 10 .
<IMG SRC=http://192.168.100.1*/-wvhttp-01-/GetStillImage?p=40&t=-10>
* The underscored portion is a sample IP address. Enter the actual camera server IP address.
GetStillImage Parameters
Parameter
Specifies the camera pan angle. p is a 1 unit, and pan is a 0.01 unit. For
p/pan
example if the camera pans right 20 , then p is 20 and pan is 2000. If this
parameter is omitted, the camera pan angle is not controlled.
Specifies the camera tilt angle. t is a 1 unit, and tilt is a 0.01 unit. If this
t/tilt
parameter is omitted, the camera tilt angle is not controlled.
Specifies camera zoom. z is ten times the zoom ratio of the widest angle, and
z/zoom zoom is the view angle in 0.01 units (horizontal direction. If this parameter is
omitted, camera zoom is not controlled.
Specifies camera backlight compensation. When this parameter is set to on, the image
b/back_light
captured will be bright and when this parameter is set to off, the image captured will be
dark. If this parameter is omitted, camera backlight compensation is not controlled.
Assigns the numbers 1 to 4 to camera 1 to 4. If this parameter is omitted, the
camera_id
camera that is currently selected will be used.
Waiting time until camera focus is stabilized (in milliseconds). Specified in the
delay
range 0 to 10000.
Specifies how errors are dealt with. When skip_on_error is specified, the
process will be continued. When quit_on_error is specified, the process will
option
be aborted. The following errors can occur: failure to acquire camera control
right, loss of camera control, camera selection errors and camera control
errors. To omit, the default value is quit_on_error.
Allows any number to be specified to avoid displaying old images (numeric
seq
value).
c
If old images are displayed, you can prevent this recurring by specifying a
sequence number in the seq parameter.
Note
78
Description
5
Chapter
Using the Picture
Recording Function
This chapter describes a couple of specific examples of the Picture
Recording function using the VB101. This function can be used to
automatically capture still pictures according to a preset schedule
or in response to inputs from an external device, and then display
those pictures on a Web page