Canon C50Fi VB-C50Fi manual.pdf - Page 155

Creating Web Pages Distributing Videos Using a Browser Only Displaying Live Video from a Specified Zoom Magnification as Still Pictures By specifying the camera zoom magnification as a parameter in the HTML code beforehand, you can display the picture from a specified camera zoom magnification. The example below displays a still picture shot with the camera panned right by 40° and tilted down 10°. * The underlined portion is a sample IP address. Enter the actual IP address set for the VB-C50Fi (→ P.3-6). GetStillImage Parameters Parameter z or zoom b or back_light delay option seq v or image_size Description 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). Specifies 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. If old still pictures are displayed, you can prevent this recurring by specifying a Note sequence number in the seq parameter. 5-25