User Manual (Ver. 1.0) - Main Functions
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4. Use
ImageScalingHorizontal
and
ImageScalingVertical
to specify the horizontal and vertical
scaling ratio. For more information on how to specify the scaling ratio, see
.
Specifying the Scaling Ratio
Specify the scaling ratio in decimal point (maximum six decimal places) for ImageScalingHorizontal
and ImageScalingVertical. The setting range is 0.0625 to 1. If "1" is specified, the image will not be
scaled.
Cautions
:
l
Xscale automatically rounds down the width to the nearest value that is a multiple of 4 and
rounds down the height to the nearest value that is a multiple of 2.
Before rounding down, width and height calculations are first rounded (up or down) to seven
significant digits. If the subsequent rounding down to the nearest multiple of 4 (or 2) results in
a value that is beyond Xscale’s maximum 16X scaling limit, the value is rounded up to the
nearest multiple of 4 (or 2) and the corresponding ImageScalingHorizontal/Vertical value is
adjusted accordingly.
l
eBUS Player may automatically round the value and display a different value.
Note:
When using Xscale, the horizontal and vertical scaling factors determine the size of the
virtual pixels in the scaled image. This information, plus any ROI that has been preset by the user,
determines the maximum number of whole virtual pixels possible in the output image.
Example 1
If you want to output an image with 50% scaling both horizontally and vertically, set
ImageScalingHorizontal and ImageScalingVertical to "0.5". (This is equivalent to the traditional 2 x 2
binning.)