Sensoray 711 - Manual (Page 13)

14 Sensoray Model 711 Instruction Manual
Member Description
interlace Defines input image format. Can be one of the following:
Value Description
IMG_INTERLACED
Interlaced input image.
IMG_NONINTERLACED Noninterlaced input image.
xTotal Total number of output horizontal pixels (including horizontal
blanking). Should be between 100 and 910 (NTSC), or
1135 (PAL). This is the number of pixels generated by the
frame grabber internally.
xActive Number of active output horizontal pixels. Should be between
80 and 900 (NTSC), or 1000 (PAL). This is the number of
pixels in the output image.
xDelay The horizontal offset of the start of the active area relative to
horizontal sync, pixels. The following condition should always
be met: xDelay + xActive <= xTotal.
yFactor Vertical scaling factor. The actual number of lines generated
by the video source (525 for NTSC, 625 for PAL) is divided by
yFactor to get the number of lines in the output image. Should
be between 1.0 and 8.0.
yActive Number of active output lines (before vertical scaling is
applied).
Should be between 60 and 525 (NTSC), or 625 (PAL). For
example, to grab the whole NTSC image scaled down by the
factor of 2, set yActive to 525, yFactor to 2.0. To grab the upper
half of the NTSC image scaled down by the factor of 2, set
yActive to 262, yFactor to 2.0.
yDelay The vertical offset of the start of the active area relative to
vertical sync, lines (before vertical scaling is applied). The following
condition should always be met:
yDelay + yActive <= (total lines, 525 or 625).
FORMAT Input signal format. Can be one of the following:
Value Description
FORMAT_NTSC
NTSC input signal.
FORMAT_NTSCJ NTSC (Japan) input signal.
FORMAT_PAL PAL input signal.
FORMAT_PALM PAL(M) input signal.
FORMAT_PALN PAL(N) input signal.
FORMAT_PALNC PAL(N-combination) input signal.
FORMAT_SECAM SECAM input signal.
BRIGHT Controls the brightness (luminance) of the output signal. Takes
the values between 0 and 0xFF which are treated as a
signed offset, from -128 (0x80) to +127 (0x7F). The resolution
of brightness change is one LSB (0.4% of the full range).
CONTRAST This 9-bit value is multiplied by the luminance value to
provide contrast (gain) adjustment. Takes values from 0 to
0x1FF (237%), with 0x0D8 corresponding to 100%.
SAT_U A 9-bit value used to add a gain adjustment to the U
component