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ART CORNER
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December 2, 2023
Answered

create a adjustment layer using javascript and change value for separate color in separate channel.

  • December 2, 2023
  • 1 reply
  • 691 views

// Create a new group named "A1"
var group = app.activeDocument.layerSets.add();
group.name = "A1";

// Set the document color mode to CMYK
app.activeDocument.mode = DocumentMode.CMYK;
createChannelMixerAdjustmentLayer();

// Function to create a Channel Mixer adjustment layer
function createChannelMixerAdjustmentLayer() {
// Create a new adjustment layer
var desc18 = new ActionDescriptor();
var desc19 = new ActionDescriptor();
var desc20 = new ActionDescriptor();
var ref8 = new ActionReference();
ref8.putClass(charIDToTypeID("AdjL"));
desc18.putReference(charIDToTypeID("null"), ref8);
desc20.putEnumerated(stringIDToTypeID("presetKind"), stringIDToTypeID("presetKindType"), stringIDToTypeID("presetKindDefault"));

// CMYK values
var idCyn = charIDToTypeID("Cyn ");
var desc674 = new ActionDescriptor();
desc674.putUnitDouble(idCyn, charIDToTypeID("#Prc"), 80.000000); // Set to 80%
var idChMx = charIDToTypeID("ChMx");
desc20.putObject(idCyn, idChMx, desc674);

var idMgnt = charIDToTypeID("Mgnt");
var desc675 = new ActionDescriptor();
desc675.putUnitDouble(idMgnt, charIDToTypeID("#Prc"), 60.000000); // Set to 60%
desc20.putObject(idMgnt, idChMx, desc675);

var idYlw = charIDToTypeID("Ylw ");
var desc676 = new ActionDescriptor();
desc676.putUnitDouble(idYlw, charIDToTypeID("#Prc"), 70.000000); // Set to 70%
desc20.putObject(idYlw, idChMx, desc676);

var idBlck = charIDToTypeID("Blck");
var desc677 = new ActionDescriptor();
desc677.putUnitDouble(idBlck, charIDToTypeID("#Prc"), 50.000000); // Set to 50%
desc20.putObject(idBlck, idChMx, desc677);

desc19.putObject(charIDToTypeID("Type"), charIDToTypeID("ChnM"), desc20);
desc18.putObject(charIDToTypeID("Usng"), charIDToTypeID("AdjL"), desc19);
executeAction(charIDToTypeID("Mk "), desc18, DialogModes.NO);

}


this is my code, but in this code only change same channel with same color, but i want change in
cyan channel, color value cyan=100, magenta=10, yellow=25, black=2
magenta channel, color value cyan=45, magenta=100, yellow=2, black=1
yellow channel, color value cyan=3, magenta=10, yellow=85, black=-2
black channel, color value cyan=-5, magenta=6, yellow=0, black=100


if any have solution please help me to solve my problem and if you have better solution please help me.

thank you.

    This topic has been closed for replies.
    Correct answer Stephen Marsh

    @ART CORNER 

     

    Try this:

     

    #target photoshop

// Create a new group named "A1"
var group = app.activeDocument.layerSets.add();
group.name = "A1";
// Set the document color mode to CMYK
app.activeDocument.mode = DocumentMode.CMYK;
// Function to create a Channel Mixer adjustment layer
makeChaMix();
// Function to set the Channel Mixer adjustment layer CMYK values
setChaMix();


///// FUNCTIONS /////

function makeChaMix() {
    var idmake = stringIDToTypeID("make");
    var desc793 = new ActionDescriptor();
    var idnull = stringIDToTypeID("null");
    var ref89 = new ActionReference();
    var idcontentLayer = stringIDToTypeID("contentLayer");
    ref89.putClass(idcontentLayer);
    desc793.putReference(idnull, ref89);
    var idusing = stringIDToTypeID("using");
    var desc794 = new ActionDescriptor();
    var idtype = stringIDToTypeID("type");
    var idchannelMixer = stringIDToTypeID("channelMixer");
    desc794.putClass(idtype, idchannelMixer);
    var idcontentLayer = stringIDToTypeID("contentLayer");
    desc793.putObject(idusing, idcontentLayer, desc794);
    executeAction(idmake, desc793, DialogModes.NO);
}

function setChaMix() {
    cTID = function (s) {
        return app.charIDToTypeID(s);
    }
    sTID = function (s) {
        return app.stringIDToTypeID(s);
    }
    var desc1 = new ActionDescriptor();
    var ref1 = new ActionReference();
    ref1.putEnumerated(cTID('AdjL'), cTID('Ordn'), cTID('Trgt'));
    desc1.putReference(cTID('null'), ref1);
    var desc2 = new ActionDescriptor();
    desc2.putEnumerated(sTID("presetKind"), sTID("presetKindType"), sTID("presetKindCustom"));
    var C = new ActionDescriptor();
    C.putUnitDouble(cTID('Cyn '), cTID('#Prc'), 100);
    C.putUnitDouble(cTID('Mgnt'), cTID('#Prc'), 10);
    C.putUnitDouble(cTID('Ylw '), cTID('#Prc'), 25);
    C.putUnitDouble(cTID('Blck'), cTID('#Prc'), 2);
    desc2.putObject(cTID('Cyn '), cTID('ChMx'), C);
    var M = new ActionDescriptor();
    M.putUnitDouble(cTID('Cyn '), cTID('#Prc'), 45);
    M.putUnitDouble(cTID('Mgnt'), cTID('#Prc'), 100);
    M.putUnitDouble(cTID('Ylw '), cTID('#Prc'), 2);
    M.putUnitDouble(cTID('Blck'), cTID('#Prc'), 1);
    desc2.putObject(cTID('Mgnt'), cTID('ChMx'), M);
    var Y = new ActionDescriptor();
    Y.putUnitDouble(cTID('Cyn '), cTID('#Prc'), 3);
    Y.putUnitDouble(cTID('Mgnt'), cTID('#Prc'), 10);
    Y.putUnitDouble(cTID('Ylw '), cTID('#Prc'), 85);
    Y.putUnitDouble(cTID('Blck'), cTID('#Prc'), -2);
    desc2.putObject(cTID('Ylw '), cTID('ChMx'), Y);
    var K = new ActionDescriptor();
    K.putUnitDouble(cTID('Cyn '), cTID('#Prc'), -5);
    K.putUnitDouble(cTID('Mgnt'), cTID('#Prc'), 6);
    K.putUnitDouble(cTID('Ylw '), cTID('#Prc'), 0);
    K.putUnitDouble(cTID('Blck'), cTID('#Prc'), 100);
    desc2.putObject(cTID('Blck'), cTID('ChMx'), K);
    desc1.putObject(cTID('T   '), cTID('ChnM'), desc2);
    executeAction(cTID('setd'), desc1, DialogModes.NO);
}

     

     

    1 reply

    Stephen Marsh
    Community Expert
    Stephen MarshCommunity ExpertCorrect answer
    Community Expert
    December 2, 2023

    @ART CORNER 

     

    Try this:

     

    #target photoshop

// Create a new group named "A1"
var group = app.activeDocument.layerSets.add();
group.name = "A1";
// Set the document color mode to CMYK
app.activeDocument.mode = DocumentMode.CMYK;
// Function to create a Channel Mixer adjustment layer
makeChaMix();
// Function to set the Channel Mixer adjustment layer CMYK values
setChaMix();


///// FUNCTIONS /////

function makeChaMix() {
    var idmake = stringIDToTypeID("make");
    var desc793 = new ActionDescriptor();
    var idnull = stringIDToTypeID("null");
    var ref89 = new ActionReference();
    var idcontentLayer = stringIDToTypeID("contentLayer");
    ref89.putClass(idcontentLayer);
    desc793.putReference(idnull, ref89);
    var idusing = stringIDToTypeID("using");
    var desc794 = new ActionDescriptor();
    var idtype = stringIDToTypeID("type");
    var idchannelMixer = stringIDToTypeID("channelMixer");
    desc794.putClass(idtype, idchannelMixer);
    var idcontentLayer = stringIDToTypeID("contentLayer");
    desc793.putObject(idusing, idcontentLayer, desc794);
    executeAction(idmake, desc793, DialogModes.NO);
}

function setChaMix() {
    cTID = function (s) {
        return app.charIDToTypeID(s);
    }
    sTID = function (s) {
        return app.stringIDToTypeID(s);
    }
    var desc1 = new ActionDescriptor();
    var ref1 = new ActionReference();
    ref1.putEnumerated(cTID('AdjL'), cTID('Ordn'), cTID('Trgt'));
    desc1.putReference(cTID('null'), ref1);
    var desc2 = new ActionDescriptor();
    desc2.putEnumerated(sTID("presetKind"), sTID("presetKindType"), sTID("presetKindCustom"));
    var C = new ActionDescriptor();
    C.putUnitDouble(cTID('Cyn '), cTID('#Prc'), 100);
    C.putUnitDouble(cTID('Mgnt'), cTID('#Prc'), 10);
    C.putUnitDouble(cTID('Ylw '), cTID('#Prc'), 25);
    C.putUnitDouble(cTID('Blck'), cTID('#Prc'), 2);
    desc2.putObject(cTID('Cyn '), cTID('ChMx'), C);
    var M = new ActionDescriptor();
    M.putUnitDouble(cTID('Cyn '), cTID('#Prc'), 45);
    M.putUnitDouble(cTID('Mgnt'), cTID('#Prc'), 100);
    M.putUnitDouble(cTID('Ylw '), cTID('#Prc'), 2);
    M.putUnitDouble(cTID('Blck'), cTID('#Prc'), 1);
    desc2.putObject(cTID('Mgnt'), cTID('ChMx'), M);
    var Y = new ActionDescriptor();
    Y.putUnitDouble(cTID('Cyn '), cTID('#Prc'), 3);
    Y.putUnitDouble(cTID('Mgnt'), cTID('#Prc'), 10);
    Y.putUnitDouble(cTID('Ylw '), cTID('#Prc'), 85);
    Y.putUnitDouble(cTID('Blck'), cTID('#Prc'), -2);
    desc2.putObject(cTID('Ylw '), cTID('ChMx'), Y);
    var K = new ActionDescriptor();
    K.putUnitDouble(cTID('Cyn '), cTID('#Prc'), -5);
    K.putUnitDouble(cTID('Mgnt'), cTID('#Prc'), 6);
    K.putUnitDouble(cTID('Ylw '), cTID('#Prc'), 0);
    K.putUnitDouble(cTID('Blck'), cTID('#Prc'), 100);
    desc2.putObject(cTID('Blck'), cTID('ChMx'), K);
    desc1.putObject(cTID('T   '), cTID('ChnM'), desc2);
    executeAction(cTID('setd'), desc1, DialogModes.NO);
}

     

     

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