Data Translation DT3153, Руководство пользователя

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Chapter 2
18
Using software, you can select one of the following types of frame
acquisitions:
• Interlaced frames, starting on the next even field (the default),
• Interlaced frames, starting on the next odd field, or
• Interlaced frames, starting on the next field (odd or even).
Scaling Frames
The DT3153 can perform simultaneous, interpolated, arbitrary
scaling in real-time. This feature is useful if you want to reduce the
size of an image.
Using software, you provide the scale factor for the horizontal and
vertical directions. The scale factor is the ratio of the target values (the
total number of pixels or lines in the resulting scaled image) to the
source values (the total number of pixels or lines in the image to
scale) in each direction.
The minimum scale factor is 1; the maximum scale factor is 100
(nominal is 100).
Frame Storage Mode
You can store the data in one of the following formats:
• YUV (16-bits per pixel), as shown in Figure 5 ;
• RGB16 (16-bits per pixel), as shown in Figure 6 ; and
• RGB (32-bits per pixel), as shown in Figure 7 .