Motion Detection in LUA script - Script Writing - CHDK Forum

Motion Detection in LUA script

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Motion Detection in LUA script
« on: 20 / November / 2008, 15:39:50 »
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Hello guys,

is there any way to use motion detection in a LUA-Script?
Of course the UBasic command does not work in a LUA script but I could not find any command for LUA

Thanks in advance
Cheers!

careyer


OKAY!!! OKAY!!! Got it.... I Just need to use brackets and everything will work fine!
:-)
« Last Edit: 20 / November / 2008, 15:41:58 by careyer »

Re: Motion Detection in LUA script
« Reply #1 on: 08 / January / 2009, 15:05:07 »
Actually I got it to work in Lua script (but had to use a function return value to get the number of rectangles changed)

This works on my A590 for a=1, but it doesn't quite snap the picture when a=0.  Here is my script so far:

Code: [Select]

--[[
@title security cam

rem Based on work done by  MLuna - based om MX3 sample script
rem Tested A590

rem Shot without auto-focus/with auto-focus/continuously (need to put in continuous mode manually)
rem T implies test mode with MD cells drawing and no shots taken
@param a Shot (0=nf/1=f/2=c/3=t)
@default a 1

rem How long the shutter button will be pressed in continuous mode
@param b Continuos shoot (secs)
@default b 10

@param c Threshold (0-255)
@default c 5

@param d Compare Interval (msecs)
@default d 20

@param e Compare Interval (secs)
@default e 0

rem If this value is too small, the camera goes continuously shooting after the 1st shot.
rem Experiment with this value to find one fitted to your needs
@param f Begin Delay (secs)
@default f 5

@param g Pix step(speed/accuracy adj)
@default g 5

@param h Columns
@default h 6

@param i Rows
@default i 6

rem Frame width in which no MD is performed (in cell units)
@param j Dead frame
@default j 0


]]

if a<0 then
  a=0
end

if a>3 then
  a=3
end

if c<0 then
 c=0
end

if d<0 then
  d=0
end

if e<0 then
  e=0
end

if g<1 then
  g=1
end

if h<1 then
  h=1
end

if i<1 then
  i=1
end

if j<0 then
  j=0
end


-- Conversions secs to msecs
b=b*1000
e=e*1000
f=f*1000

d=d+e

-- This is the timeout in msecs. After this period, the motion trap is rearmed.
T=600000

-- Parameters for the Dead Frame
J=j+1
H=h-j
I=i-j

t=0

print( "press Shutter to Stop")



while (  1 ) do



        rectangles = 0

        rectangles = md_detect_motion( h, i, 1, T, d, c, 1, t, 1, J, J, H, I, 0, g, f)


        t=rectangles


        if a==0 and t>0 then click "shoot_full" end
        if a==1 and t>0 then shoot() end
        if a==2 and t>0 then

          X=get_tick_count()
          press("shoot_full")

          while (V<b) do

                 U=get_tick_count()
                 V=(U-X)
          end

          release( "shoot_full" )

        end

        -- Test Mode Output
        if a==3 then

          if t>0 then
              print( "Detected cells: ",t)
          else
              print( "No detection in 10 min!" )

          end

          t=0

        end




-- end of while loop

end




print("END")






*

Offline dom-a

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Re: Motion Detection in LUA script
« Reply #2 on: 11 / January / 2009, 12:14:19 »
I've been trying your script with my A570is and with the addition of "press ( "shoot_half" )" it working as fast as the UBasic script.

 

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