Fill image with other colors - (Moved)

[Miliardsto]

hello Im wondering if it is possible to process image in autoit like this

1. firstly there is colorfull wallpaper

2. Fill all colors (exception rose color) - with white

3. Fill rose color with black color

I see Gdi functions have things to manipulate images

https://imgur.com/a/lFdY26g

[Melba23]

Moved to the appropriate forum, as the AutoIt Example Scripts forum very clearly states:

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Share your cool AutoIt scripts, UDFs and applications with others.

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[Nine]

Look at _GDIPlus_BitmapGetPixel in the autoit help file.  It is pretty much all you need in there.  You will need to adjust the, lets call it, filter. And you will need to read a file instead of a screencapture. This one easy way to do it, among other solutions.

Good scripting !

[InnI]

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#include <GDIPlus.au3>

; base color 0xFF0080 (255,0,128)
Global $iBaseR = 255, $iBaseG = 0, $iBaseB = 128
; shade-variation (0-255)
Global $iVary = 107
; color to change base color
Global $iChangeBaseColor = 0x000000
; color to change other colors
Global $iChangeOtherColor = 0xFFFFFF

Global $sSourceFile = "1.jpg"
Global $sDestFile = "2.jpg"

SplashTextOn("", "Processing...", 300, 100, Default, Default, 33)
_GDIPlus_Startup()

$hImage = _GDIPlus_ImageLoadFromFile($sSourceFile)
$iW = _GDIPlus_ImageGetWidth($hImage)
$iH = _GDIPlus_ImageGetHeight($hImage)

$tBits = _GDIPlus_BitmapLockBits($hImage, 0, 0, $iW, $iH, BitOR($GDIP_ILMWRITE, $GDIP_ILMREAD))
$iScan0 = DllStructGetData($tBits, "Scan0")
$tPixel = DllStructCreate("int[" & $iW * $iH & "];", $iScan0)
For $iY = 0 To $iH - 1
  $iOffset = $iY * $iW + 1
  For $iX = 0 To $iW - 1
    $iColor = DllStructGetData($tPixel, 1, $iOffset + $iX)
    $iR = BitAND(BitShift($iColor, 16), 0xFF)
    $iG = BitAND(BitShift($iColor, 8), 0xFF)
    $iB = BitAND($iColor, 0xFF)
    If  $iR > $iBaseR - $iVary And $iR < $iBaseR + $iVary _
    And $iG > $iBaseG - $iVary And $iG < $iBaseG + $iVary _
    And $iB > $iBaseB - $iVary And $iB < $iBaseB + $iVary Then
      DllStructSetData($tPixel, 1, $iChangeBaseColor, $iOffset + $iX)
    Else
      DllStructSetData($tPixel, 1, $iChangeOtherColor, $iOffset + $iX)
    EndIf
  Next
Next
_GDIPlus_BitmapUnlockBits($hImage, $tBits)

_GDIPlus_ImageSaveToFile($hImage, $sDestFile)
_GDIPlus_ImageDispose($hImage)
_GDIPlus_Shutdown()

SplashOff()
ShellExecute($sDestFile)

 

[Nine]

Or you can wait for someone to write it for you 

[qwert]

@Innl: that's a nifty script. But while it's fresh on your mind, can you add just a few comments. For example, the statements for Lock and Unlock Bits are not familiar to most of us.

Thanks for the script.

[UEZ]

Check this out (example is from help file but modified appropriately):

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;coded by UEZ
#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <MsgBoxConstants.au3>

Example()

Func Example()
    Local $sFile = "C:\Temp\Ballons_364x227.png"
    If Not FileExists($sFile) Then
        MsgBox(BitOR($MB_SYSTEMMODAL, $MB_ICONHAND), "", $sFile & " not found!", 30)
        Return False
    EndIf

    _GDIPlus_Startup()
    Local $hImage = _GDIPlus_ImageLoadFromFile($sFile) ;create an image object based on a file
    If @error Then
        _GDIPlus_Shutdown()
        MsgBox(BitOR($MB_SYSTEMMODAL, $MB_ICONHAND), "", "An error has occured - unable to load image!", 30)
        Return False
    EndIf

    Local $iW = _GDIPlus_ImageGetWidth($hImage), $iH = _GDIPlus_ImageGetHeight($hImage) ;get width and height of the image
    Local $hBitmap = _GDIPlus_BitmapCreateFromScan0($iW, $iH)
    Local $hContext = _GDIPlus_ImageGetGraphicsContext($hBitmap)
    _GDIPlus_GraphicsDrawImageRect($hContext, $hImage, 0, 0, $iW, $iH)

    Local $tBitmapData = _GDIPlus_BitmapLockBits($hBitmap, 0, 0, $iW, $iH, BitOR($GDIP_ILMWRITE, $GDIP_ILMREAD), $GDIP_PXF32ARGB) ;locks a portion of a bitmap for reading and writing. More infor at http://msdn.microsoft.com/en-us/library/windows/desktop/ms536298(v=vs.85).aspx
    Local $iScan0 = DllStructGetData($tBitmapData, "Scan0") ;get scan0 (pixel data) from locked bitmap
    Local $tPixel = DllStructCreate("int argb[" & $iW * $iH & "];", $iScan0)
    Local $iRGBA, $iRowOffset, $aHSL

    For $iY = 0 To $iH - 1
        $iRowOffset = $iY * $iW + 1
        For $iX = 0 To $iW - 1 ;get each pixel in each line and row
            $iRGBA = DllStructGetData($tPixel, 1, $iRowOffset + $iX)
            $aHSL = RGB2HSL($iRGBA) ;convert color to HSL color space
            ;check if HSL color is in the red / purple range -> see http://hslpicker.com for details
            If ($aHSL[0] < 30 And InRange(Round(100 * $aHSL[1]), 100) And InRange(Round(100 * $aHSL[2]), 50)) Or _
               ($aHSL[0] > 300 And InRange(Round(100 * $aHSL[1]), 100) And InRange(Round(100 * $aHSL[2]), 50)) Then
                DllStructSetData($tPixel, 1, 0xFFFFFFFF, $iRowOffset + $iX) ;if yes then set white pixel
            Else
                DllStructSetData($tPixel, 1, 0xFF000000, $iRowOffset + $iX) ;else black pixel
            EndIf
        Next
    Next
    _GDIPlus_BitmapUnlockBits($hBitmap, $tBitmapData) ;unlocks a portion of a bitmap that was locked by _GDIPlus_BitmapLockBits


    ;display manipulated image
    Local $hGUI = GUICreate("_GDIPlus_BitmapLockBits Demo", $iW, $iH)
    GUISetState(@SW_SHOW)

    Local $hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI) ;create a Graphics object from a window handle
    _GDIPlus_GraphicsDrawImageRect($hGraphic, $hBitmap, 0, 0, $iW, $iH) ;copy manipulated image to graphics handle

    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE

    ;cleanup resources
    _GDIPlus_ImageDispose($hImage)
    _GDIPlus_GraphicsDispose($hContext)
    _GDIPlus_BitmapDispose($hBitmap)
    _GDIPlus_GraphicsDispose($hGraphic)
    _GDIPlus_Shutdown()
    GUIDelete($hGUI)
EndFunc   ;==>Example

Func InRange($iNumber, $iRange, $iPlus = 25, $iMinus = 25)
    If $iNumber > ($iRange - $iMinus) And $iNumber < ($iRange + $iPlus) Then Return 1
    Return 0
EndFunc

Func RGB2HSL($iColor)
    Local $r = BitAND(BitShift($iColor, 16), 255) / 255, $g = BitAND(BitShift($iColor, 8), 255) / 255, $b = BitAND($iColor, 255) / 255
    Local $Cmax = Max(Max($r, $g), $b), $Cmin = Min(Min($r, $g), $b), $deltaChroma = $Cmax - $Cmin
    Local $L = ($Cmin + $Cmax) / 2, $H, $S
    If $deltaChroma = 0 Then
        $H = 0
        $S = 0
    Else
        $S = $deltaChroma / (1 - Abs(2 * $L - 1))
        If $r = $Cmax Then ;r is max
            $H = Mod(($g - $b) / $deltaChroma, 6)
        ElseIf $g = $Cmax Then ;g is max
            $H = ($b - $r) / $deltaChroma + 2
        Else ;else b is max
            $H = ($r - $g) / $deltaChroma + 4
        EndIf
        $H *= 60
        If $H < 0 Then $H += 360
    EndIf
    Local $aHSL[3] = [$H, $S, $L]
    Return $aHSL
EndFunc

Func Min($a, $b)
    Return ($a < $b) ? $a : $b
EndFunc

Func Max($a, $b)
    Return ($a > $b) ? $a : $b
EndFunc

Replace $sFile with proper path to the image before you run the script!

[qwert]

@UEZ: thanks for that annotated variation. I now have plenty to look at for a few days. I'm still determined to have a tunable script than can render a monochome result. This looks promising.

[UEZ]

8 hours ago, qwert said:

@UEZ: thanks for that annotated variation. I now have plenty to look at for a few days. I'm still determined to have a tunable script than can render a monochome result. This looks promising.

Have a look to 

There is a function called _GDIPlus_BlackAndWhite() which can convert an image to b/w aka monochrom.