Displaying Live Video From A Specified Angle As Still Pictures - Canon VB-C50I User Manual

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Displaying Live Video from a Specified Angle as Still Pictures

By specifying the camera angle as a parameter in the HTML code beforehand, you can display
the picture from a specified camera angle. The example below displays a still picture 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 underlined portion is a sample IP address. Enter the actual IP address set for the VB-C50i/VB-C50iR
(→ P.3-6).
GetStillImage Parameters
Parameter
p or pan
t or tilt
z or zoom
b or back_light
delay
option
seq
v or image_size
If old still pictures are displayed, you can prevent this recurring by specifying a
sequence number in the seq parameter.
Note
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.
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
picture captured will be bright and when this parameter is set to off, the picture
captured will be dark. If this parameter is omitted, camera backlight compensation
is not controlled.
Waiting time until camera focus is stabilized (in milliseconds).
Specified in the 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 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 (sequence number) to be specified to avoid displaying old
still pictures (numeric value).
S
pecifies picture display size. This can be set to 160 × 120, 320 × 240, and 640
× 480 for NTSC, and 192 × 144, 384 × 288, and 768 × 576 for PAL. The formats
for specifying "v" and "image_size" are different: "v" specifies the horizontal
dimension only and uses the format "v=640", for instance, while "image_size"
specifies both horizontal and vertical dimensions and uses the format
"image_size=320 × 240", for instance.
Distributing Videos Using a Browser Only
Description
5-25

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