Changing image hue

Mikeman27294 · September 12, 2011

Hey everyone.

I want to add a theming engine to a program of mine, so that there is multiple hues, ie red, green, orange, blue and so on. I also want to be able to change the brightness of the background, ie you can choose between a range oflight greys through to dark greys.

I have searched the forum and came across this:

#include<Array.au3>

#include<Color.au3>

#include<GUIConstantsEx.au3>

GUICreate("",360,350)
$gra = GUICtrlCreateGraphic(0,0,360,20)
GUISetState()
$Color = 0xFFff00
GUISetBkColor($Color)
ConsoleWrite("Color: 0x" & Hex($Color, 6) & @CRLF)
ConsoleWrite("Saturation: " & _Color_GetSaturation($Color) & " %" & @CRLF)
ConsoleWrite("Brightness: " & _Color_GetBrightness($Color) & " %" & @CRLF)
ConsoleWrite("Hue: " & _Color_GetHue($Color) & " º" & @CRLF)
Sleep(1000)
ConsoleWrite("Complementary color: " & _Color_FindComplementary($Color) & @CRLF & @CRLF)
$i = 0
While $i < 2
    $i += 1
    GUISetBkColor(_Color_FindComplementary($Color))
    Sleep(500)
    GUISetBkColor($Color)
    Sleep(500)
WEnd
GUISetBkColor(0)
For $x = 0 To 360 Step 2
    $hue = _Color_SetHue($Color, $x)
    ConsoleWrite("Hue: " & $x & " º" & $hue & @CRLF)
;~  GUISetBkColor($hue)
    GUICtrlSetGraphic($gra,$GUI_GR_COLOR,$hue,$hue)
    GUICtrlSetGraphic($gra,$GUI_GR_RECT,$x,0,2,20)
    GUICtrlSetGraphic($gra,$GUI_GR_REFRESH)
    Sleep(30)
 
Next
Sleep(500)
GUISetBkColor($Color)
GUICtrlDelete($gra)
$gra = GUICtrlCreateGraphic(0,0,350,20)
$gra2 = GUICtrlCreateGraphic(0,20,350,20)
 
 
ConsoleWrite("  Saturation:  Brightness:" & @CRLF)
For $x = 0 To 100
    $sat = _Color_SetSaturation($Color, $x)
    $brigth = _Color_SetBrightness($Color, $x)
    ConsoleWrite($x & " % " & $sat & "   " & $brigth & @CRLF)
    GUICtrlSetGraphic($gra,$GUI_GR_COLOR,$sat,$sat)
    GUICtrlSetGraphic($gra2,$GUI_GR_COLOR,$brigth,$brigth)
    GUICtrlSetGraphic($gra,$GUI_GR_RECT,350*$x/100,0,Ceiling (350/100),20)
    GUICtrlSetGraphic($gra2,$GUI_GR_RECT,350*$x/100,0,Ceiling( 350/100),20)
    GUICtrlSetGraphic($gra,$GUI_GR_REFRESH)
    GUICtrlSetGraphic($gra2,$GUI_GR_REFRESH)
    Sleep(30)
Next
 
Func _Color_SetSaturation($iColor, $nPercent)
    Local $aColorArray[4]
    $nPercent = 1 - ($nPercent / 100)
 
    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)
 
    If $aColorArray[1] = $aColorArray[2] And $aColorArray[2] = $aColorArray[3] Then Return -1
 
    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    $IndexMin = _ArrayMinIndex($aColorArray, 1, 1)
    $IndexMid = 6 - ($IndexMax + $IndexMin)
 
    $aColorArray[$IndexMid] = ($aColorArray[$IndexMax] * ($aColorArray[$IndexMid] - $aColorArray[$IndexMin])) / ($aColorArray[$IndexMax] - $aColorArray[$IndexMin])
    $aColorArray[$IndexMid] = Round($aColorArray[$IndexMid] + ($aColorArray[$IndexMax] - $aColorArray[$IndexMid]) * $nPercent, 0)
 
    $aColorArray[$IndexMin] = Round($aColorArray[$IndexMax] * $nPercent, 0)
    Return 0 & "x" & Hex($aColorArray[1], 2) & Hex($aColorArray[2], 2) & Hex($aColorArray[3], 2)
EndFunc   ;==>_Color_SetSaturation
 
Func _Color_GetSaturation($iColor)
    Local $aColorArray[4]
 
    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)
 
    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    $IndexMin = _ArrayMinIndex($aColorArray, 1, 1)
    $IndexMid = 6 - ($IndexMax + $IndexMin)
    Return Round((1 - $aColorArray[$IndexMin] / $aColorArray[$IndexMax]) * 100, 0)
EndFunc   ;==>_Color_GetSaturation
 
Func _Color_SetBrightness($iColor, $nPercent)
    Local $aColorArray[4]
    $nPercent = $nPercent / 100
 
    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)
 
    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    $ActBrightness = $aColorArray[$IndexMax] / 255
    For $i = 1 To 3
        $aColorArray[$i] = Round($aColorArray[$i] * $nPercent / $ActBrightness, 0)
    Next
    Return 0 & "x" & Hex($aColorArray[1], 2) & Hex($aColorArray[2], 2) & Hex($aColorArray[3], 2)
EndFunc   ;==>_Color_SetBrightness
 
Func _Color_GetBrightness($iColor)
    Local $aColorArray[4]
 
    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)
 
    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    Return Round(($aColorArray[$IndexMax] / 255) * 100, 0)
EndFunc   ;==>_Color_GetBrightness
 
Func _Color_SetHue($iColor, $iHue)
    Local $aColorArray[4]
 
    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)
 
    $iMax = _ArrayMax($aColorArray, 1, 1)
    $iMin = _ArrayMin($aColorArray, 1, 1)
 
    If $iHue >= 61 And $iHue <= 180 Then
        $IndexMax = 2
        If $iHue < 120 Then
            $IndexMin = 3
            $iMid = (($iMax - $iMin) * (120 - $iHue)) / 60 + $iMin
        Else
            $IndexMin = 1
            $iMid = (($iMax - $iMin) * ($iHue - 120)) / 60 + $iMin
        EndIf
    ElseIf $iHue >= 181 And $iHue <= 299 Then
        $IndexMax = 3
        If $iHue <= 240 Then
            $IndexMin = 1
            $iMid = (($iMax - $iMin) * (240 - $iHue)) / 60 + $iMin
        Else
            $IndexMin = 2
            $iMid = (($iMax - $iMin) * ($iHue - 240)) / 60 + $iMin
        EndIf
    ElseIf $iHue >= 300 Or $iHue <= 60 Then
        $IndexMax = 1
        If $iHue <= 60 Then
            $IndexMin = 3
            $iMid = (($iMax - $iMin) * ($iHue)) / 60 + $iMin
        Else
            $IndexMin = 2
            $iMid = (($iMax - $iMin) * (360 - $iHue)) / 60 + $iMin
        EndIf
    EndIf
    $IndexMid = 6 - ($IndexMin + $IndexMax)
    $aColorArray[$IndexMin] = $iMin
    $aColorArray[$IndexMax] = $iMax
    $aColorArray[$IndexMid] = $iMid
    Return 0 & "x" & Hex($aColorArray[1], 2) & Hex($aColorArray[2], 2) & Hex($aColorArray[3], 2)
EndFunc   ;==>_Color_SetHue
 
Func _Color_GetHue($iColor)
    Local $aColorArray[4], $Hue
 
    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)
 
    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    $IndexMin = _ArrayMinIndex($aColorArray, 1, 1)
    $IndexMid = 6 - ($IndexMax + $IndexMin)
    $Lambda = ($aColorArray[$IndexMid] - $aColorArray[$IndexMin]) * 60 / ($aColorArray[$IndexMax] - $aColorArray[$IndexMin])
 
    Switch $IndexMax
        Case 1
            Switch $IndexMin
                Case 2
                    $Hue = 360 - $Lambda
                Case 3
                    $Hue = $Lambda
            EndSwitch
        Case 2
            Switch $IndexMin
                Case 1
                    $Hue = 120 + $Lambda
                Case 3
                    $Hue = 120 - $Lambda
            EndSwitch
        Case 3
            Switch $IndexMin
                Case 1
                    $Hue = 240 - $Lambda
                Case 2
                    $Hue = 240 + $Lambda
            EndSwitch
    EndSwitch
    Return Round($Hue, 0)
EndFunc   ;==>_Color_GetHue
 
Func _Color_FindComplementary($iColor)
    Local $iHue = Mod(_Color_GetHue($iColor) + 180, 360)
    Return _Color_SetHue($iColor, $iHue)
EndFunc   ;==>_Color_FindComplementary

However, I dont quite understand the hue changing function in this, or the brightness function. Are there any easier ways to do something like this? Otherwise, can someone please help me make sense of the hue and brightness functions?

Thanks.

Finally the autoit tags are working so there u go. Sorry bouth that, it was only showing the first few lines and then it swallowed up the edit button and all those buttons and so on.

Edited September 13, 2011 by Mikeman27294

MvGulik · September 12, 2011

Try passing the code, after first switching the post editor in code mode. An post it in that mode to(if posting in normal mode also screws things up.) ...

Erm: Yep ... Don't post in Normal mode

Grr: ... don't even switch to normal mode ... :graduated:

test: (will be removed again) (guess not yet ... )

#include<Array.au3>
#include<Color.au3>
#include<GUIConstantsEx.au3>


GUICreate("", 360, 350)
$gra = GUICtrlCreateGraphic(0, 0, 360, 20)
GUISetState()
$Color = 0xFFff00
GUISetBkColor($Color)
ConsoleWrite("Color: 0x" & Hex($Color, 6) & @CRLF)
ConsoleWrite("Saturation: " & _Color_GetSaturation($Color) & " %" & @CRLF)
ConsoleWrite("Brightness: " & _Color_GetBrightness($Color) & " %" & @CRLF)
ConsoleWrite("Hue: " & _Color_GetHue($Color) & " º" & @CRLF)
Sleep(1000)
ConsoleWrite("Complementary color: " & _Color_FindComplementary($Color) & @CRLF & @CRLF)
$i = 0
While $i < 2
    $i += 1
    GUISetBkColor(_Color_FindComplementary($Color))
    Sleep(500)
    GUISetBkColor($Color)
    Sleep(500)
WEnd
GUISetBkColor(0)
For $x = 0 To 360 Step 2
    $Hue = _Color_SetHue($Color, $x)
    ConsoleWrite("Hue: " & $x & " º" & $Hue & @CRLF)
;~ GUISetBkColor($hue)
    GUICtrlSetGraphic($gra, $GUI_GR_COLOR, $Hue, $Hue)
    GUICtrlSetGraphic($gra, $GUI_GR_RECT, $x, 0, 2, 20)
    GUICtrlSetGraphic($gra, $GUI_GR_REFRESH)
    Sleep(30)

Next
Sleep(500)
GUISetBkColor($Color)
GUICtrlDelete($gra)
$gra = GUICtrlCreateGraphic(0, 0, 350, 20)
$gra2 = GUICtrlCreateGraphic(0, 20, 350, 20)


ConsoleWrite("  Saturation: Brightness:" & @CRLF)
For $x = 0 To 100
    $sat = _Color_SetSaturation($Color, $x)
    $brigth = _Color_SetBrightness($Color, $x)
    ConsoleWrite($x & " % " & $sat & "   " & $brigth & @CRLF)
    GUICtrlSetGraphic($gra, $GUI_GR_COLOR, $sat, $sat)
    GUICtrlSetGraphic($gra2, $GUI_GR_COLOR, $brigth, $brigth)
    GUICtrlSetGraphic($gra, $GUI_GR_RECT, 350 * $x / 100, 0, Ceiling(350 / 100), 20)
    GUICtrlSetGraphic($gra2, $GUI_GR_RECT, 350 * $x / 100, 0, Ceiling(350 / 100), 20)
    GUICtrlSetGraphic($gra, $GUI_GR_REFRESH)
    GUICtrlSetGraphic($gra2, $GUI_GR_REFRESH)
    Sleep(30)
Next

Func _Color_SetSaturation($iColor, $nPercent)
    Local $aColorArray[4]
    $nPercent = 1 - ($nPercent / 100)

    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)

    If $aColorArray[1] = $aColorArray[2] And $aColorArray[2] = $aColorArray[3] Then Return -1

    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    $IndexMin = _ArrayMinIndex($aColorArray, 1, 1)
    $IndexMid = 6 - ($IndexMax + $IndexMin)

    $aColorArray[$IndexMid] = ($aColorArray[$IndexMax] * ($aColorArray[$IndexMid] - $aColorArray[$IndexMin])) / ($aColorArray[$IndexMax] - $aColorArray[$IndexMin])
    $aColorArray[$IndexMid] = Round($aColorArray[$IndexMid] + ($aColorArray[$IndexMax] - $aColorArray[$IndexMid]) * $nPercent, 0)

    $aColorArray[$IndexMin] = Round($aColorArray[$IndexMax] * $nPercent, 0)
    Return 0 & "x" & Hex($aColorArray[1], 2) & Hex($aColorArray[2], 2) & Hex($aColorArray[3], 2)
EndFunc ;==>_Color_SetSaturation

Func _Color_GetSaturation($iColor)
    Local $aColorArray[4]

    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)

    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    $IndexMin = _ArrayMinIndex($aColorArray, 1, 1)
    $IndexMid = 6 - ($IndexMax + $IndexMin)
    Return Round((1 - $aColorArray[$IndexMin] / $aColorArray[$IndexMax]) * 100, 0)
EndFunc ;==>_Color_GetSaturation

Func _Color_SetBrightness($iColor, $nPercent)
    Local $aColorArray[4]
    $nPercent = $nPercent / 100

    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)

    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    $ActBrightness = $aColorArray[$IndexMax] / 255
    For $i = 1 To 3
        $aColorArray[$i] = Round($aColorArray[$i] * $nPercent / $ActBrightness, 0)
    Next
    Return 0 & "x" & Hex($aColorArray[1], 2) & Hex($aColorArray[2], 2) & Hex($aColorArray[3], 2)
EndFunc ;==>_Color_SetBrightness

Func _Color_GetBrightness($iColor)
    Local $aColorArray[4]

    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)

    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    Return Round(($aColorArray[$IndexMax] / 255) * 100, 0)
EndFunc ;==>_Color_GetBrightness

Func _Color_SetHue($iColor, $iHue)
    Local $aColorArray[4]

    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)

    $iMax = _ArrayMax($aColorArray, 1, 1)
    $iMin = _ArrayMin($aColorArray, 1, 1)

    If $iHue >= 61 And $iHue <= 180 Then
        $IndexMax = 2
        If $iHue < 120 Then
            $IndexMin = 3
            $iMid = (($iMax - $iMin) * (120 - $iHue)) / 60 + $iMin
        Else
            $IndexMin = 1
            $iMid = (($iMax - $iMin) * ($iHue - 120)) / 60 + $iMin
        EndIf
    ElseIf $iHue >= 181 And $iHue <= 299 Then
        $IndexMax = 3
        If $iHue <= 240 Then
            $IndexMin = 1
            $iMid = (($iMax - $iMin) * (240 - $iHue)) / 60 + $iMin
        Else
            $IndexMin = 2
            $iMid = (($iMax - $iMin) * ($iHue - 240)) / 60 + $iMin
        EndIf
    ElseIf $iHue >= 300 Or $iHue <= 60 Then
        $IndexMax = 1
        If $iHue <= 60 Then
            $IndexMin = 3
            $iMid = (($iMax - $iMin) * ($iHue)) / 60 + $iMin
        Else
            $IndexMin = 2
            $iMid = (($iMax - $iMin) * (360 - $iHue)) / 60 + $iMin
        EndIf
    EndIf
    $IndexMid = 6 - ($IndexMin + $IndexMax)
    $aColorArray[$IndexMin] = $iMin
    $aColorArray[$IndexMax] = $iMax
    $aColorArray[$IndexMid] = $iMid
    Return 0 & "x" & Hex($aColorArray[1], 2) & Hex($aColorArray[2], 2) & Hex($aColorArray[3], 2)
EndFunc ;==>_Color_SetHue

Func _Color_GetHue($iColor)
    Local $aColorArray[4], $Hue

    $aColorArray[1] = _ColorGetRed($iColor)
    $aColorArray[2] = _ColorGetGreen($iColor)
    $aColorArray[3] = _ColorGetBlue($iColor)

    $IndexMax = _ArrayMaxIndex($aColorArray, 1, 1)
    $IndexMin = _ArrayMinIndex($aColorArray, 1, 1)
    $IndexMid = 6 - ($IndexMax + $IndexMin)
    $Lambda = ($aColorArray[$IndexMid] - $aColorArray[$IndexMin]) * 60 / ($aColorArray[$IndexMax] - $aColorArray[$IndexMin])

    Switch $IndexMax
        Case 1
            Switch $IndexMin
                Case 2
                    $Hue = 360 - $Lambda
                Case 3
                    $Hue = $Lambda
            EndSwitch
        Case 2
            Switch $IndexMin
                Case 1
                    $Hue = 120 + $Lambda
                Case 3
                    $Hue = 120 - $Lambda
            EndSwitch
        Case 3
            Switch $IndexMin
                Case 1
                    $Hue = 240 - $Lambda
                Case 2
                    $Hue = 240 + $Lambda
            EndSwitch
    EndSwitch
    Return Round($Hue, 0)
EndFunc ;==>_Color_GetHue

Func _Color_FindComplementary($iColor)
    Local $iHue = Mod(_Color_GetHue($iColor) + 180, 360)
    Return _Color_SetHue($iColor, $iHue)
EndFunc ;==>_Color_FindComplementary

Last 'Done' (I Hope) edit ... yep. (all edit-code mode, no normal edit-mode involved.)

Edited September 13, 2011 by iEvKI3gv9Wrkd41u

taietel · September 12, 2011

Take a look

UEZ · September 12, 2011

You can checkout or

Br,

UEZ

Mikeman27294 · September 13, 2011

Thanks guys. That image tool looks like it is exactly what will answer my question.

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