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Zer0Velocity

Array help

17 posts in this topic

I have a image(bmp) that i want to scan for 1 pixel that might show more than once. I want to store all the results in a array after scan completes, then click all the pixels and removes the array for that 1 click untill the array empyties. How can I do this ?

Thought that this might be easy but guess was wrong :blink:

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I have the following code for checking the bmp file but it won't find the colour :blink: any ideas?

$img = @MyDocumentsDir & "\GDIPlus_Image1.jpg"
$hImage = _GDIPlus_ImageLoadFromFile ($img)
$hBitmap = _GDIPlus_BitmapCreateHBITMAPFromBitmap ($hImage)
$width = _GDIPlus_ImageGetWidth($hImage)
$height = _GDIPlus_ImageGetHeight($hImage)
$colour = 0xEAFCBE
$coord = PixelSearch(0, 0, $width-1, $height-1, $colour, 0, 300, $hBitmap)
If @error Then
        ToolTip("No colours", 0 ,0)
        Else
        For $x = 1 to $coord
                ToolTip("array" & $coord[0] & $coord[1], 0 ,0)
        sleep (2000)
        Next
EndIf

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Firstly, PixelSearch ends when it finds the first intance of the colour as far as I know.

Secondly, I dont think the base of an array holds a value ($coord) only the array elements hold values, perhaps you are looking for Ubound($coords).

Thirdly, I'm not convinced you can use Pixelsearch in that manner, it uses a window handle, and creates its own bitmap I think.

I know this isnt helping you (I dont know how to do a recursive pixelsearch (if thats even a thing), but it will give you something to think about.


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Monkey's are, like, natures humans.

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Not sure if pixelsearch is recursive, but is there anyway to skip current known postitions from previous pixel searches if stored in an array?

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It would take a bit of coding.

If your picture was on screen and small, I would just do some pixelgetcolor() on each pixel and store it into an array, then loop through that array.

if it were on screen and huge, I would perfom my pixelsearch line by line.

0>1>2>3>4x5>6>7>8>9>

0>1x2>3>4>5>6>7>8>9>

0>1>2>3>4>5>6>7x8>9>

say the ">" are pixels that are not your color and "x" are your colour.

You would pixelsearch the first row from 0 to 9, when the pixelsearch returns at 4, you would start a new on from 5 to 9, then continue another at the second row from 0 to nine and so on.

Its a few loops, if thens, and suchlike.


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Thats 1 way of doing it but think it might be a bit to slow :blink: Found a script that oflight coded I think, would this work?

;=================================   PixelFindAll   ==============================
; Function Name:    _PixelFindAll
; Description:      Finds all instances of a pixel within a given area and returns array with Total and all locations X and Y.
;                   Allows you to limit results by skiping pixels within a given distance to each other.
; Requires:                         None
; Parameters:       $Pixel          Colour value of pixel to find (in decimal or hex).
;                   $XDist          Horizontal distance from found pixel to skip before continueing search (moving right)
;                   $YDist          Vertical distance from found pixel to skip before continueing search (moving down)
;                   $sv             Shade Varience
;                   $SB_l           left coordinate of total area to search. Default is 0 (far left side of screen)
;                   $SB_t           top coordinate of total area to search. Default is 0 (top most Side of screen)
;                   $SB_r           Right coordinate of total area to search. Default is @DesktopWidth (Far Right side of screen)
;                   $SB_b           Bottom coordinate of total area to search. Default is @DesktopHeight (Bottom most side of screen)
; Syntax:         _PixelFindAll($pixel[, $XDist, $YDist, $sv, $SB_l, $SB_t, $SB_r, $SB_b])
; Author(s):    
; Returns:      $Array[0][0] = 0 on failure
;===============================================================================
Func _PixelFindAll($pixel,$XDist=0,$YDist=0,$sv=0,$SB_l=0,$SB_t=0,$SB_r=@DesktopWidth,$SB_b=@DesktopHeight)
    Dim $Array[2][2], $Count = "0", $SB_l_Max = $SB_l, $SB_b_Max = $SB_b
    $Array[0][0] = "0"

    While 1
        $xy = PixelSearch($SB_l,$SB_t,$SB_r,$SB_b,$pixel,$sv)
        If @error And $SB_b = $SB_b_Max Then
            SetError(1)
            
            Dim $Array2[2][2]
            $Array2[0][0] = "0"
            $Count = "0"

            For $i = 1 to $Array[0][0]
                $Write = 1              
                For $j = $i+1 to $Array[0][0]
                    $VarX = _CompareNumbers($Array[$i][0], $Array[$j][0], $XDist)
                    If $VarX = 0 Then
                        $VarY = _CompareNumbers($Array[$i][1], $Array[$j][1], $YDist)
                        If $VarY = 0 Then $Write = 0
                    EndIf
                Next
                If $Write = 1 Then
                    $Count = $Count+1
                    $Array2[0][0] = $Count
                    ReDim $Array2[$Count+1][2]
                        $Array2[$Count][0] = $Array[$i][0]
                        $Array2[$Count][1] = $Array[$i][1]              
                EndIf
            Next

            Return $Array2
        ElseIf @error Then
            $SB_t = $SB_b + 1
            $SB_b = $SB_b_Max
            $SB_l = $SB_l_Max
        Else
            $Count = $Count+1
            $Array[0][0] = $Count
            ReDim $Array[$Count+1][2]
            $Array[$Count][0] = $xy[0]
            $Array[$Count][1] = $xy[1]

            $SB_t = $xy[1]
            $SB_b = $SB_t
            $SB_l = $xy[0]+1+$YDist 
        EndIf
    WEnd
EndFunc;==========================  PixelFindAll   ===============================

Func _CompareNumbers($Number1, $Number2, $byhowmuch);SUB Function of PixelFindAll
    ;Verify that $Number1 is more than $byhowmuch from $Number2
    ;Returns 0 if within $byhowmuch
    If $Number1 = $Number2 Then
        Return 0
    ElseIf $Number1 > $Number2 Then
        If ($Number1-$byhowmuch) >= $Number2 Then Return 1
    ElseIf $Number1 < $Number2 Then
        If ($Number1+$byhowmuch) <= $Number2 Then Return 1
    EndIf
    Return 0
EndFunc

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Ok, got the pixelfindall but how do I use this on a JPG screenshot?

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Im trying this but it won't write the postitions to the ini file any ideas?

$i = 0
$colour = 0xFF710C
$TotalSearches = 0 ;For testing speed only

While 1
    $coord1 = _PixelFindAll($colour,0,0,0,0,@DesktopWidth,@DesktopHeight)
    If Not @error Then
        IniWrite(".\Pixel.ini","Main","PixelPos",$coord1)
    $TotalSearches = $TotalSearches+1 ;For testing speed only
    tOOLTIP($TotalSearches)           ;For testing speed only
    EndIf
WEnd

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#include <Array.au3>

$i = 0
$colour = 0xFF710C
$TotalSearches = 0 ;For testing speed only

While 1
    $coord1 = _PixelFindAll($colour,0,0,0,0,@DesktopWidth,@DesktopHeight)
    If Not @error Then
        _ArrayDisplay($coord1)
        IniWrite(".\Pixel.ini","Main","PixelPos",$coord1)
    $TotalSearches = $TotalSearches+1 ;For testing speed only
    tOOLTIP($TotalSearches)           ;For testing speed only
    Else
        MsgBox(0,"Error","error")
    EndIf
WEnd

What are the results?


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Just comes up with msgbox error.

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How do I write the postitions to the ini file? :blink:

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Well getting somewhere now ;) getting the array listview showing the following.

rows col0 col1

[0] 0

1

It's still not putting postitions into the inifile, but more important, I think it's not actually picking up the colour :blink: .

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#16 ·  Posted (edited)

Ironically You just missed a Zero :blink:

8 inputes to fully specify a searchbox.

_PixelFindAll($pixel[, $XDist, $YDist, $sv, $SB_l, $SB_t, $SB_r, $SB_b])

#include <Array.au3>


$colour = 16777118

$coord1 = _PixelFindAll($colour,0,0,0,0,0,@DesktopWidth,@DesktopHeight)
If IsArray($coord1) Then
    _ArrayDisplay($coord1)
    For $i = 1 to $coord1[0][0]
        IniWrite(".\Pixel.ini","Main","X_PixelPos_"&$i,$coord1[$i][0])
        IniWrite(".\Pixel.ini","Main","Y_PixelPos_"&$i,$coord1[$i][1])
    Next
Else
    MsgBox(0,"Error","error")
EndIf

Edit: forgot to test the ini write part, muh bad ;)

Edited by ofLight

There is always a butthead in the crowd, no matter how hard one tries to keep them out.......Volly

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Would like to say thanks guys for all the help on this, really appreciate it :blink:

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