Axis P3904-R, Руководство пользователя

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AXIS P3904-R Network Camera
About video settings
About overlay images
An overlay image is a static image superimposed over the video stream. The image, for example a company logo, is first uploaded to
the Axis product and then used to provide extra information or to mask a part of the image.
Image specifications:
• The uploaded image should be a Windows 24-bit BMP image with maximum 250 colors.
• The image width and height, in pixels, must be exactly divisible by four.
• The image cannot be larger than the maximum image resolution.
• If you combine a text overlay with and image overlay, the text overlay always takes presidence over the overlay image in
height. A text overlay always stretches across the whole video image which means you cannot shrink the overlay strip to
make room for an image. For information about the different text overlay heights, see
About overlay text .
Since it is static, the position and size of an overlay image remains the same regardless of resolution and pan, tilt or zoom movements.
To cover a part of the monitored area, use privacy masks. See About privacy masks on page 22 .
How to upload an overlay image
1. Go to Video > Overlay Image .
2. Click Browse and browse to the file.
3. Click Upload .
4. The Transparency Settings page is now displayed:
- To make a color in the overlay image transparent, select Use transparency and enter the RGB hexadecimal value
for the color. Example: To make white transparent, enter FFFFFF.
For more examples of hexadecimal values, see the online help .
- To scale the image automatically, select Scale with resolution . The image will be scaled down to fit the
resolution used by the Axis product.
5. Click Save .
How to include an overlay image
1. Go to Video > Overlay Image .
2. Select the image to use from the Use overlay image list and click Save .
3. Go to Video > Video Stream and select the Image tab.
4. Under Overlay Settings , select Include overlay image at the coordinates .
5. To control the image’s position, enter the X (horizontal) and Y (vertical) coordinates. The
X=0
and
Y=0
position is
the top left corner. If a part of the image is positioned outside the video image, the overlay image will be moved so
that the whole image is visible.
6. Click Save .
About privacy masks
A privacy mask is a user-defined area that covers parts of the monitored area. Privacy masks appear as blocks of solid color and are
applied on the video stream. Privacy masks cannot be bypassed using the VAPIX® application programming interface (API).
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