[Updated] How to detect color in region per second?

Hi , you will need to know the RGB from green and the image width before aply this code

RBar = Region(175, 675, 600, 375)
RBar:highlight()

-- target will be left side (green)
local pattern = Pattern("redwithgreen.png"):targetOffset("2 - (image width/2) ", 0)

-- set rgb color from green
local green = { r = 0, g = 0, b = 0 }

local match = regionFindAllNoFindException(RBar, pattern)

if #match > 0 then
   print("Total match = " .. #match)
   for i, m in ipairs(match) do

       -- get left color from match
       local r, g, b = getColor(m:getTarget())

       print("*******************")
       print("m = " .. i)
       print("r = " .. r .. " | g = " .. g .. " | b = " .. b)

       if r == green.r and g == green.g and b == green.b then
           m:highlight("redwithgreen")
           print("id = redwithgreen")

       else
           m:highlight("full red")
           print("id = full red")
       end
   end
end

RBar = Region(175, 675, 600, 375)
RBar:highlight()

-- target will be left side (green)
local pattern = Pattern("red.png"):targetOffset(-23, 0)

-- set rgb color from green
local green = { r = 0, g = 0, b = 0 }
local delay_btw_images = 4

while RBar:exists(pattern, delay_btw_images) do

   local match = RBar:getLastMatch()

   -- get left color from match
   local r, g, b = getColor(match:getTarget())
   match:highlight(0.1)

   print("*******************")
   print("r = " .. r .. " | g = " .. g .. " | b = " .. b)

   if r == green.r and g == green.g and b == green.b then
       toast("click")
   else
       toast("Next")
   end
end
this one will repeat until it can't find the red image, after img found, he compare the color at left side and if is green will click it
set delay_btw_images as you need

Thanks for the help. I learned alot from codes given and taking the steps slowly.

Now my script looks like this.

-- ========== Settings ================
Settings:setCompareDimension(true, 960)
Settings:setScriptDimension(true, 960)
Settings:set("MinSimilarity", 0.65)

-- ========== main program ===========

RBar = Region(425, 220, 170, 40) -- landscape... region of bar
RBar:highlight()

function searchFunc()
--toast("function working")

x=470
while(x<=560) do -- while1

local r, g, b = getColor(Location(x, 233))

-- scanning region preview
--local SReg = Region(x, 233, 5, 5)
--SReg:highlight()

-- check if pixel's color is same to assigned RGB
if(r==167 and g==115 and b==127) then -- if1
-- stop loop
-- check if pixel's color changed every second

s=1
clickLoc=Location(850, 480) -- DESIRED CLICK LOCATION

while(s<=100) do -- while2 THIS WILL ACT LIKE A TIMER

local r2, g2, b2 = getColor(Location(x, 233))
if(r2~=167 and g2~=115 and b2~=127) then -- if2 IF COLOR CHANGED
-- go click
--print("click")
click(clickLoc)
searchFunc()
break

else
if(s==100) then -- if3
s=1
end -- END of if3

end -- END of if2

s=s+1
end -- END of while2
break

else
if(x==550) then -- if4
-- search again
x=470
end -- END of if4

end -- END of if1

x=x+15 -- INCREMENT of while1
end -- END of while1

end -- END of function

-- print("Process Completed")

searchFunc() -- RUN function


I'm sorry if my codes looked messy. I use comments for now to avoid confusion until I get used to it. I used while loop in line 31 to act like a timer. I do not know if there is a proper code for this yet. My intention in line 31 is to be a pixel's color checker.
I'd like to check the detected pixel per second if it changed it's color... then if it is, it will perform a click in a location. So far, it is working but 30-40% of the time, the click is delayed. I suspect that it is because of the inner while loop in line 31.
Any suggestion to make the performance faster and accurate?
I am still newbie and sorry if my english is bad.

From mobile using QLua App.

It's 720x1280.

ok sorry for late reply

in this example i added color function, it will help you a lot to detect the color, so how it works?

look at the image and set properly

"color_search_timer" - timeout until green is over red
img "onlyRed.png" - crop a new image only with the red square
"redColor -> color" - set RGB red color
"click("desired Location")" - click location

once done the code will search for the image, once found will look at red color until timeout or green pass over it.
If timeout he will search for a new image, if color red pass over will click at the desired location


-- color functionc
-- ========================================
function colorExists(obj, time)
   time = time or 1
   local timer = Timer()
   local r, g, b
   -- while in time
   while true do
       r, g, b = getColor(obj.location)

       if obj.diff then
           if math.abs(obj.color[1] - r) <= obj.diff[1] then
               if math.abs(obj.color[2] - g) <= obj.diff[2] then
                   if math.abs(obj.color[3] - b) <= obj.diff[3] then
                       return true
                   end
               end
           end
       else
           if r == obj.color[1] and g == obj.color[2] and b == obj.color[3] then return true end
       end

       --
       r, g, b = nil, nil, nil

       if timer:check() > time then return false end
   end
end


-- ========================================
RBar = Region(175, 675, 600, 375)
RBar:highlight()

-- ========================================
local function searchMyColor()
   -- color obj
   local redColor = {
       color = { 167, 115, 127 }, -- red RGB
       diff = { 10, 10, 10 }, -- Diff red RGB
   }

   -- color timer
   local timer = Timer()
   local color_search_timer = 30

   -- only look at the image for 1 sec
   if RBar:exists("onlyRed.png", 1) then

       -- get location color if image found
       redColor.location = RBar:getLastMatch():getTarget()

       -- while color search
       while true do

           -- seach next image if color timeout
           if timer:check() > color_search_timer then
               break
           end

           -- since is in time and color red is NOT visible then click
           if not colorExists(redColor, 0) then
               click("desired Location")
               return true
           end
       end
   end

   toast("next search")
   return false
end


-- infinite loop
-- ========================================
while true do
   searchMyColor()
end