Extron Electronics IN1508 User Guide - Manual (Page 46)

Several Input submenu Advanced selections define the active (image) area of the input (see
figure 31):
• Active pixels — The number of pixels per line that are inside the input active area. The
baseline for the active pixels adjustment is the right edge of the image. This value is
often referred to as horizontal resolution.
• Active lines — The number of lines per frame that are inside the input active area. The
baseline for the active lines adjustment is the bottom edge of the image. This value is
often referred to as vertical resolution.
For interlaced input signals, this variable refers to the total number of lines per frame
after deinterlacing, not the number of lines per field.
• Horizontal start — The number of pixels per line that are inside the blanking area to
the left of the active area.
• Vertical start — The number of lines per frame that are inside the blanking area above
the active area.
• Total pixels (RGBHV/RGBS/RGsB and progressive/HDTV component only) — The
total number of pixels per line, including the blanking on both sides of the input active
area and sync (horizontal active, front porch, horizontal sync, and back porch).
Active Pixels
Total Pixels
Total
Lines
Active
Lines
Vertical
Start
Horizontal
Start
Active Area
Blanking Area
Figure 31. Advanced input settings
Use these controls to match the input video signal and to frame the active area.
NOTES: • The active pixels and total pixels adjustments are interactive. Setting one of
these variables may require adjusting the other.
• The total number of lines per frame, including the blanking above and below
the active area, is determined by the input signal and is not user adjustable.
IN1508 • Operation 41