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manually, otherwise it will be identified with YPbPr input. Signal must access Y interface
(green RCA interface). In fact, the capture card can capture 5 SD signals together with other
4 composite video inputs which XI104XUSB offers.
2.
Signal Status
The relevant parameters of signal are shown, such as total number of rows, frame rate (p is
progressive scan, i is interlaced), mode, audio frequency.
ii.
Image Adjustment
By default, image is auto, but it cannot achieve desired effect, such as black border, unclear
image, picture which needs clipping, you must adjust manually. After adjustment, you can
save the preset. Then you can apply preset values without adjustment when the same
signal accesses.
For example as VGA signal adjustment:
Black border adjustment:
by adjusting left margin and top margin to eliminate black
border. Every time you can adjust 1 pixel.
Text definition adjustment:
adjust line number of samples and sampling phase to
achieve desired definition of text.
Select correct resolution quickly:
the capture card cannot identify correct resolution
with the same number of rows, such as 1024x768, 1280x768, 1360x768, 1368x768, lines are
all 768, auto may be all identified as 1024x768, then click “auto”, a list will pop up as
shown below, user can select the correct resolution.
Figure 10 auto pop-out menu
Image Clipping:
by adjusting image width, height, left margin and top margin to
achieve desired requirement. Increasing/reducing width of image starts from right,
increasing/reducing height of image starts from bottom.
Skills of image clipping as follows:
1.
Set scale “fill output image” to confirm whether clipping adjustment is
appropriate.