Thread View: comp.sys.concurrent
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Started by patrick daly
Mon, 19 Mar 1990 00:29
Re: Need help digitizing video signals
Author: patrick daly
Date: Mon, 19 Mar 1990 00:29
Date: Mon, 19 Mar 1990 00:29
199 lines
6281 bytes
6281 bytes
REALLY in response to: rick@synapse.neuro.bcm.tmc.edu
(Rick Gray)
|
V
In article <217@gazette.bcm.tmc.edu> you write:
>There is a demo program called 'image.f' in the Masscomp Graphics
>Application Prgramming Manual (Rev. H) that uses the DACP hardware to
>digitize the signal from a video camera and display the image on the
>screen.
I was instructed to remove this program from the GAPM as of Rev K
and from SP-4005 as of Rev 5.2. The reasons were given to me were:
(1) one should be able to compile and run the example programs
without requiring additional software packages (in this case SP-50)
(2) one should be able to run the example programs without additional
hardware (the video camera, DACP, etc)
(3) The program was buggy and incomplete and not considered a good example.
I offered to address (3) by doing some work on the program but since
that would not address (1) and (2) above, I was outvoted.
> The version in the manual is incomplete (or at least doesn't
>include all the connections on the CK10 clock and AD12FA), but I
>remember seeing (and trying out) a corrected/expanded version of this
>program a few years ago.
Sorry, I don't know anything about a corrected or expanded version.
> At that time I had no need to digitize
>images, but now I do and can't find the code. I also can't remember
>whether the corrected code came from the users' group, release notes
>or from someone at Masscomp. ^^^^^^^^^^^^^
The version last appearing in the SP-4005 *kit* follows the end of this mail.
There was no corrected version offered in the release notes. I do not know
how closely the version you described matches the enclosed version.
> I haven't been able to find it in the
>comp.sys.masscomp archives or any of our documentation. Has anyone
>archived a working version of this demo program or written something
>similar?
>Here's the hardware:
> CK10 clock
> AD12FA 1MHz a/d board
> MC 5520 with DACP
> Dage-MTI SIT or Hamamatsu C2400 camera
>We have both 6-plane GA800's and 4-plane GA1000's, some running
>Masscomp graphics (SP-40) and others running X11R3 for display.
>
>Thanks,
>rick
>- --
>Rick Gray uucp: uunet!soma!rick
>Division of Neuroscience Internet: rick@soma.bcm.tmc.edu
>Baylor College of Medicine
>Houston, Tx 77030
>
>Articles to: concurrent@soma.bcm.tmc.edu or uunet!soma.bcm.tmc.edu!concurrent
>Administrative stuff: concurrent-request@soma.bcm.tmc.edu
>Stan Barber, Moderator
=========== Last version of image.f before being removed from sp-4005 =======
* @(#)image.f 6.1 (MASSCOMP) Modified 8/22/88
program image
integer*2 videodata(105000)
character picray(318, 242)
integer i
integer itemp
real rintense
integer adpath, dummy, clkpath(8)
integer statwds(2)
adpath = -1
dummy = -1
do 10 i = 1, 8
clkpath(i) = -1
10 continue
call mropen( adpath, "/dev/dacp0/adf0", 0 )
print *, "adpath\n", adpath
call mrclkopn( clkpath(8), "/dev/dacp0/clk2", 0 )
call mrclkopn( clkpath(1), "/dev/dacp0/clk1", 0 )
call mrclkopn( clkpath(2), "/dev/dacp0/clk0", 0 )
call mrclkopn( clkpath(3), "/dev/dacp0/clk3", 0 )
call mrclkopn( clkpath(4), "/dev/dacp0/clk4", 0 )
call mrclkopn( clkpath(5), "/dev/dacp0/clk5", 0 )
call mrclkopn( clkpath(6), "/dev/dacp0/clk6", 0 )
call mrclkopn( clkpath(7), "/dev/dacp0/clk7", 0 )
* Now the clocks have been openned... wire
* out 3 to src 2
* out 2 to cntrl 1
* out 1 to cntrl 3
* out 2 to cntrl 5
* out 5 to cntrl 6
100 print *, "First clocks armed\n", clkpath
call mrclkcnts( clkpath(3), 27, 300, 84, 4, 1, 2 )
call mrclkcnts( clkpath(8), 19, 242, 20, 0, 1, 2 )
call mrclkcnts( clkpath(2), 19, 242, 20, 0, 1, 2 )
call mrclksetter( clkpath(1), 27,7, 2, 7, 1, 2, 12 )
call mrclksetter( clkpath(5), 27, 5, 5, 6, 0, 2, 0 )
call mrclkcnts( clkpath(6), 27, 4, 2, 4, 0, 2 )
call mrclkcnts( clkpath(4), 27, 5, 1, 0, 0, 2 )
call mrclkarm( 1, clkpath(8) )
print *, "clkset\n"
call mrclkarm( 4, clkpath )
call mradxin( adpath, clkpath(6), -1, 0, 1, 1, 0, 105000, videodata )
print *, "adpath\n", adpath
print *, "Type carriage return to start"
read *
call mrclkarm( 1, clkpath(6) )
print *, "\"
call mrclkarm( 1, clkpath(5) )
print *, "awaiting read completion\n"
call mrevwt( adpath, statwds, 1000000 )
print *, "\"
print *, "Picture taken\n"
call mrclosall
rintense = 2.5
level = -130
250 i = 11
do 260 if = 1, 6
do 300 il = 1, 242
do 400 is = 1, 53
if ( videodata(i) .lt. level ) then
print *, "Videodata lt level", videodata(i), i
videodata(i) = level
endif
itemp = int( float(videodata(i)-level)/rintense )
if ( itemp .ge. 128 ) itemp = 127
picray( (7-if+(is-1)*6), il ) = char(itemp)
i = i + 1
400 continue
i = i + 11
300 continue
i = i + 1280
print *, "after 300 - i=", i
260 continue
call mgiasngp( 0, 0 )
print *, 'Assigned - go for image'
call mgiimage( picray, 301, 201, 618, 442 )
print *, 'End of image - deassign'
call mgideagp
print *, 'Display complete\'
stop
end
--------------------------------------------------------------------------------
___________
/ ________/__ ...!{decvax,uunet}!masscomp!daly
/__/_______/ / daly@westford.ccur.com
Concurrent /__________/
Computer Corporation
--------------------------------------------------------------------------------
Articles to: concurrent@soma.bcm.tmc.edu or uunet!soma.bcm.tmc.edu!concurrent
Administrative stuff: concurrent-request@soma.bcm.tmc.edu
Stan Barber, Moderator
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