3-27
IN1404XT Video Scaler and Switcher • Operation
Active Pixels
Active
Lines
Incorrect Active Area
Active Area
Blanking Area
Figure 3-16 — Incorrect active area setting
Similarly, if the number of active image lines that the scaler is set to scale is set to
less than the amount of actual active lines that are input, the IN1404XT only scales
the set active area and will skip some of the input lines. This early end to the
scaling process results in an output with fewer lines than it should, and looks as if
the image is stretched vertically.
Depending on the RGB source, the input sampling rates in the following table may
have the same horizontal scan rate and vertical refresh rate. The scaler does not
detect pixel space differences (you can have different numbers of pixels in the
same horizontal & vertical rates) between input rates. The scaler applies the
default capture rate to the specified input frequency. It then maintains the aspect
ratio based on the difference between the input active area and the output
resolution (active area) by inserting blank borders around the images. If, however,
you want to fill the entire monitor, you can adjust the input aspect ratio by
tweaking the number of active pixels and active lines to stretch the image. You may
also need to adjust the number of total pixels.
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Содержание IN1404XT
Страница 1: ...IN1404XT Video Scaler and Switcher 68 755 01 Rev B 12 04 ...
Страница 20: ...Installation cont d IN1404XT Video Scaler and Switcher Installation 2 8 ...
Страница 56: ...Operation cont d IN1404XT Video Scaler and Switcher Operation 3 36 ...
Страница 72: ...Programmer s Guide cont d IN1404XT Video Scaler and Switcher Programmer s Guide 4 16 ...
Страница 73: ...IN1404XT Video Scaler and Switcher A Appendix A Reference Information Specifications Part Numbers ...
Страница 80: ...Reference Information cont d IN1404XT Video Scaler and Switcher Reference Information A 8 ...
