Help for Detecting a Cirlce Shape same color as the background

[Chris10Lyn]

As What you can see in the image above i need to detect the circle shape but the problem is its the same color as the background so i can't detect it.

This is the code i use :

#cs ----------------------------------------------------------------------------
	AutoIt Version: 3.3.0.0
	Author: Chris10Lyn Symbianize 
#ce ----------------------------------------------------------------------------
#include <GUIConstantsEx.au3>

HotKeySet ("{F5}","_Exit")

While 1
   $pixel = PixelSearch(278,309,432,405,0x2C2C2C)
	  If IsArray($pixel) = True Then;
	  MouseClick('left', $pixel[0], $pixel[1], 1, 0);
   EndIf 
WEnd

Func _Exit()
   Exit
   EndFunc

can you help me or give me a code that can detect the circle shape ?

thanks in advance sir/madam.

Ps. Please answer back in english i can't understand any language other thank english. thank you.

[Ludder231]

This is the only way to do it, but i dont get it Try it urself

[lolkop]

ausgehend davon, das es sich um ein kleines bild handelt, reicht es durchaus einfach jeden pixel in einem radius von x zu durchsuchen, um zu sehen ob dort im radius befindlich weitere schwarze pixel sind.

[Chris10Lyn]

Originally Posted by lolkop

ausgehend davon, das es sich um ein kleines bild handelt, reicht es durchaus einfach jeden pixel in einem radius von x zu durchsuchen, um zu sehen ob dort im radius befindlich weitere schwarze pixel sind.

thank you for your comment sir but i cant understand your language..

[lolkop]

Originally Posted by Chris10Lyn

thank you for your comment sir but i cant understand your language..

a circle is defined by a infinite number of dots, where each of those dots got a static distance to the middle of the circle (radius).

using this definition, it's pretty easy to detect circles.

http://en.wikipedia.org/wiki/Midpoint_circle_algorithm