Create New Curve layer with Algorithm options by script

[powerful_Zephyr5EF9]

hi everyone,

I want to create an adjustment curve layer with "Enhance Monochromatic Contrast" algorithm option by using script. 

The image is described as below.

Please guide me the exact command.

I appreciate your help

[Stephen Marsh · Accepted solution]

@powerful_Zephyr5EF9 – Try this, it seems to work:

/*
Auto Curves Adjustment Layer.jsx
Stephen Marsh
https://community.adobe.com/t5/photoshop-ecosystem-discussions/create-new-curve-layer-with-algorithm-options-by-script/m-p/15150149
https://community.adobe.com/t5/photoshop-ecosystem-discussions/create-new-curve-layer-with-algorithm-options-3-by-script/m-p/15161955
*/

#target photoshop

// Create the curves adjustment layer
var desc397 = new ActionDescriptor();
var ref88 = new ActionReference();
ref88.putClass(stringIDToTypeID("adjustmentLayer"));
desc397.putReference(stringIDToTypeID("null"), ref88);
var desc398 = new ActionDescriptor();
var desc399 = new ActionDescriptor();
desc399.putEnumerated(stringIDToTypeID("presetKind"), stringIDToTypeID("presetKindType"), stringIDToTypeID("presetKindDefault"));
desc398.putObject(stringIDToTypeID("type"), stringIDToTypeID("curves"), desc399);
desc397.putObject(stringIDToTypeID("using"), stringIDToTypeID("adjustmentLayer"), desc398);
executeAction(stringIDToTypeID("make"), desc397, DialogModes.NO);

// Set the values of the curves adjustment layer
var desc412 = new ActionDescriptor();
var ref94 = new ActionReference();
ref94.putEnumerated(stringIDToTypeID("adjustmentLayer"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));
desc412.putReference(stringIDToTypeID("null"), ref94);
var desc413 = new ActionDescriptor();
desc413.putEnumerated(stringIDToTypeID("presetKind"), stringIDToTypeID("presetKindType"), stringIDToTypeID("presetKindCustom"));
var list62 = new ActionList();
var desc414 = new ActionDescriptor();
var ref95 = new ActionReference();
ref95.putEnumerated(stringIDToTypeID("channel"), stringIDToTypeID("channel"), stringIDToTypeID("composite"));
desc414.putReference(stringIDToTypeID("channel"), ref95);

// 1) Enhance Monochromatic Contrast = "autoContrast"
// 2) Enhance Per Channel Contrast = "auto"
// 3) Find Dark & Light Colors = "autoBlackWhite"
// 4) Enhance Brightness and Contrast = "autoMachineLearning"
desc414.putBoolean(stringIDToTypeID("auto"), true); // Enter one of the four previous auto parameters here

// Snap neutral midtones
desc414.putBoolean(stringIDToTypeID("autoNeutrals"), true); // Only valid for the first 3 auto parameters

// Apply the auto curves adjustment
list62.putObject(stringIDToTypeID("curvesAdjustment"), desc414);
desc413.putList(stringIDToTypeID("adjustment"), list62);
desc412.putObject(stringIDToTypeID("to"), stringIDToTypeID("curves"), desc413);
executeAction(stringIDToTypeID("set"), desc412, DialogModes.NO);

// Set the layer blend mode
//app.activeDocument.activeLayer.blendMode = BlendMode.LUMINOSITY;

// Set the layer opacity
//app.activeDocument.activeLayer.opacity = 50;

EDIT: I have updated the code to include references to all four auto options and snap neutral midtones.

[powerful_Zephyr5EF9]

it works.
I can't thank you enough, I really appreciate your help.