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T
Tsu-tey
Known Participant
July 2, 2021
Answered

Script that finds and removes all black layers.

  • July 2, 2021
  • 2 replies
  • 2589 views

Hello,

I am looking for a script that can locate and delete all black layers in PS.

 

 

I don't know how to write Javascript, and I can't find any thread explaining how to do this.

I am looking for something that is similar to "Delete All Empty Layers" script, but that finds black layers instead.

 

Thank you for taking your time,

 

Tsu-tey

This topic has been closed for replies.
Correct answer r-bin

Give an example. Upload your PSD file.

Noticed that scripts (mine and yours) remove the black layer if there is one RGB pixel (0,0,1) in it, which is wrong. Corrected my script

 

// important, the active layer must not have to be a group. 

var inv = false; // depends on channels settings. true = masked areas, false = selected areas. check what you have.


var r = new ActionReference();
r.putProperty(stringIDToTypeID("property"), stringIDToTypeID("count"));
r.putEnumerated(stringIDToTypeID("layer"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));
var count = executeActionGet(r).getInteger(stringIDToTypeID("count"));


var n = 0; 
try { app.activeDocument.backgroundLayer; } catch(e) { n = 1; ++count; }


var r_idx = new ActionReference();
var do_it = false;

for (var i = count-1; i >= n; i--)
    {
    var r = new ActionReference();
    r.putIndex(stringIDToTypeID("layer"), i);
    if (executeActionGet(r).getInteger(stringIDToTypeID("layerKind")) != 1) continue; 

    var d = new ActionDescriptor();
    var r = new ActionReference();
    r.putProperty(stringIDToTypeID("channel"), stringIDToTypeID("selection"));
    d.putReference(stringIDToTypeID("null"), r);
    var d1 = new ActionDescriptor();
    var r1 = new ActionReference();
    r1.putEnumerated(stringIDToTypeID("channel"), stringIDToTypeID("channel"), stringIDToTypeID("gray"));
    r1.putIndex(stringIDToTypeID("layer"), i);
    d1.putBoolean(stringIDToTypeID("invert"), inv);
    d1.putReference(stringIDToTypeID("to"), r1);
    d1.putEnumerated(stringIDToTypeID("calculation"), stringIDToTypeID("calculationType"), stringIDToTypeID("normal"));
    var r2 = new ActionReference();
    r2.putEnumerated(stringIDToTypeID("channel"), stringIDToTypeID("channel"), stringIDToTypeID("gray"));
    r2.putIndex(stringIDToTypeID("layer"), i);
    d1.putReference(stringIDToTypeID("source2"), r2);
    d1.putBoolean(stringIDToTypeID("invertSource2"), inv);
    d.putObject(stringIDToTypeID("to"), stringIDToTypeID("calculation"), d1);
    executeAction(stringIDToTypeID("set"), d, DialogModes.NO);


    var r = new ActionReference();
    r.putProperty(stringIDToTypeID("property"), stringIDToTypeID("selection"));
    r.putEnumerated(stringIDToTypeID("document"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));

    if (!executeActionGet(r).hasKey(stringIDToTypeID("selection")))  { r_idx.putIndex(stringIDToTypeID("layer"), i); do_it = true; }
    }

app.activeDocument.selection.deselect();

if (do_it)
    {
    var d = new ActionDescriptor();
    d.putReference(stringIDToTypeID("null"), r_idx);
    executeAction(stringIDToTypeID("delete"), d, DialogModes.NO);
    }

alert("done");

2 replies

Kukurykus
Kukurykus
Legend
July 2, 2021

 

sTT = stringIDToTypeID; function tggl() {
	(ref = new ActionReference()).putIdentifier(sTT('layer'), idntfr);
	(lst = new ActionList()).putReference(ref); (dsc = new ActionDescriptor())
	.putList(sTT('null'), lst), dsc.putBoolean(sTT('toggleOptionsPalette'), true)
	executeAction(sTT('show'), dsc)
}

lrs = [].slice.call((aD = activeDocument).artLayers)
wh = aD.width * aD.height; while(lrs.length)
	idntfr = (shft = lrs.shift()).id, tggl(),
	blck = aD.histogram[0] == wh,
	tggl(), blck && shft.remove()

 

    R
    r-bin
    Legend
    July 2, 2021

    Kukurykus, what's this?

    Kukurykus
    Kukurykus
    Legend
    July 3, 2021

    The solution 🙂

    R
    r-bin
    Legend
    July 2, 2021

    Try this script (not CS6 compatible)

     

     

    // important, the active layer must not have to be a group. 

var inv = true; // depends on channels settings. true = masked areas, false = selected areas. check what you have.


var r = new ActionReference();
r.putProperty(stringIDToTypeID("property"), stringIDToTypeID("count"));
r.putEnumerated(stringIDToTypeID("layer"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));
var count = executeActionGet(r).getInteger(stringIDToTypeID("count"));


var n = 0; 
try { app.activeDocument.backgroundLayer; } catch(e) { n = 1; ++count; }


var r_idx = new ActionReference();

for (var i = count-1; i >= n; i--)
    {
    var r = new ActionReference();
    r.putIndex(stringIDToTypeID("layer"), i);
    if (executeActionGet(r).getInteger(stringIDToTypeID("layerKind")) != 1) continue; 

    var d = new ActionDescriptor();
    var r = new ActionReference();
    r.putProperty(stringIDToTypeID("channel"), stringIDToTypeID("selection"));
    d.putReference(stringIDToTypeID("null"), r);
    var d1 = new ActionDescriptor();
    var r1 = new ActionReference();
    r1.putEnumerated(stringIDToTypeID("channel"), stringIDToTypeID("channel"), stringIDToTypeID("gray"));
    r1.putIndex(stringIDToTypeID("layer"), i);
    d1.putBoolean(stringIDToTypeID("invert"), inv);
    d1.putReference(stringIDToTypeID("to"), r1);
    d1.putEnumerated(stringIDToTypeID("calculation"), stringIDToTypeID("calculationType"), stringIDToTypeID("linearDodge"));
    var r2 = new ActionReference();
    r2.putEnumerated(stringIDToTypeID("channel"), stringIDToTypeID("channel"), stringIDToTypeID("gray"));
    r2.putIndex(stringIDToTypeID("layer"), i);
    d1.putReference(stringIDToTypeID("source2"), r2);
    d1.putBoolean(stringIDToTypeID("invertSource2"), inv);
    d.putObject(stringIDToTypeID("to"), stringIDToTypeID("calculation"), d1);
    executeAction(stringIDToTypeID("set"), d, DialogModes.NO);


    var r = new ActionReference();
    r.putProperty(stringIDToTypeID("property"), stringIDToTypeID("selection"));
    r.putEnumerated(stringIDToTypeID("document"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));

    if (!executeActionGet(r).hasKey(stringIDToTypeID("selection")))  r_idx.putIndex(stringIDToTypeID("layer"), i);
    }

app.activeDocument.selection.deselect();

var d = new ActionDescriptor();
d.putReference(stringIDToTypeID("null"), r_idx);

executeAction(stringIDToTypeID("delete"), d, DialogModes.NO);

alert("done");

     

      T
      Tsu-teyAuthor
      Known Participant
      July 3, 2021

      R
      r-bin
      Legend
      July 3, 2021

      change true to false.

      I'll fix the script yet. This also will be an error if there are no black layers.

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