Canon VB101 User Manual download pdf (Page 40)

Chapter

Parameter

Description

p/pan

Specifies the camera pan angle. p is a 1°unit, and pan is a 0.01°unit. For

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.

z/zoom

Specifies the camera tilt angle. t is a 1°unit, and tilt is a 0.01°unit. If this

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

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

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.

b/back_light

camera_id

Assigns the numbers 1 to 4 to camera 1 to 4. If this parameter is omitted, the

camera that is currently selected will be used.

■GetStillImage Parameters

t/tilt

delay

Waiting time until camera focus is stabilized (in milliseconds). Specified in the

range 0 to 10000.

seq

Allows any number to be specified to avoid displaying old images (numeric

value).

option

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

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.

Note

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°.

If old images are displayed, you can prevent this recurring by specifying a

sequence number in the seq parameter.

* The underscored portion is a sample IP address. Enter the actual camera server IP address.

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

Transmitting Video Images Using a Browser Only

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