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Get pixel count for specified region & color

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Chris

Post subject: Get pixel count for specified region & color

Posted: September 11th, 2004, 12:47 pm

Joined: March 2nd, 2004, 3:36 pm
Posts: 10720

This small subroutine might be useful to someone. It retrieves the number of pixels in a region that match a certain color:

Code:

GPC_Color = 0x3444b0
GPC_X1 = 100
GPC_X2 = 150
GPC_Y1 = 100
GPC_Y2 = 150
Gosub GetPixelCount
if PixelCount > 7
{
...
}
return

GetPixelCount:
PixelCount = 0
GPC_X = %GPC_X1%
Loop
{
   if GPC_X > %GPC_X2%
      break
   GPC_Y = %GPC_Y1%
   Loop
   {
      if GPC_Y > %GPC_Y2%
         break
      PixelGetColor, GPC_ColorTemp, %GPC_X%, %GPC_Y%
      if GPC_ColorTemp = %GPC_Color%
         ++PixelCount
      ++GPC_Y
   }
   ++GPC_X
}
return

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ProfessorY91

Post subject: Thanks!

Posted: March 3rd, 2008, 3:21 pm

Joined: March 3rd, 2008, 2:48 pm
Posts: 12
Location: Inside your mind.

Is there any way to get a complete list of hex colors of a specified region?
i.e. I am looking to differentiate between a certain shade of red and blue, but red is not the majority color (and thus there are many many colors to try when i use your subroutine)

Thanks!

Um... if you could take a look at the topic labeled

Image Search Fails to recognize screenshot if trigger (game)
http://www.autohotkey.com/forum/viewtopic.php?t=29258

Would be much appreciated. An expert could tell me what im doing wrong in a few secs im sure.

_________________

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