Javascript colorsamplers only returns 255 or 0

The scriptlistener code I poster does that.  If the Layer Mask is targeted and you click on the layers content icon in the layer palette to target the layers content that is what the Adobe scriptlistener plug-in recorded.  The plug-in is like Photoshop Action recorded. However it records Script code to use Photoshop Action manager. Its like an Action step. All the setting are hard coded for the step and executed. The code is not very readable.

You can create script functions from script listener cord by replacing the variable hard coded constant  setting with  variable.    If you look at the code posted you can set some if the hard coded sets "slct" , "Chnl", "RGB "  select channel RGB

jime75168259​,

sure, it is the code:

// ...
if(layer.isBackgroundLayer) {
    //Pixel sample1
    theSampler1 = doc.colorSamplers.add([1208, 1252);
    layersArr [0] = Math.round(theSampler1.color.rgb.red);
    layersArr [1] = Math.round(theSampler1.color.rgb.green);
    layersArr [2] = Math.round(theSampler1.color.rgb.blue);
    } else { // !!! this is the reason for black or white values if something else in the layers panel is selected
    theSampler1 = doc.colorSamplers.add([580, 380]);
    layersArr [0] = Math.round(theSampler1.color.rgb.red);
    layersArr [1] = Math.round(theSampler1.color.rgb.green);
    layersArr [2] = Math.round(theSampler1.color.rgb.blue);
}
// ...

Have fun

Hi all,

Just a question : when the background layer is active, if you select Layer...New...

Do you read "Layer from Background" or "Background from Layer" ?

Here the code I use It looks like your and worked for me.

preferences.typeUnits = TypeUnits.PIXELS;
preferences.rulerUnits = Units.PIXELS;
var doc = app.activeDocument;
var layersArr = new Array();
var colors = ''; 
 for (var s=0,len=app.activeDocument.colorSamplers.length;s<len;s++) {
  var colorSamplerRef = app.activeDocument.colorSamplers;
  colors = colors + ("ColorSampler" + s + " x=" + colorSamplerRef.position[0].value + " ,y=" + colorSamplerRef.position[1].value + " Color=" 
  + Math.round(colorSamplerRef.color.rgb.red) + "," 
  + Math.round(colorSamplerRef.color.rgb.green) + "," 
  + Math.round(colorSamplerRef.color.rgb.blue) + "\n" );
  }; 
for(var i = 0; i < doc.layers.length; i++){
        var layer = doc.layers;
  //alert(layer.name);
        doc.colorSamplers.removeAll();
        if(layer.isBackgroundLayer){
                    //Pixel sample1
                    theSampler1 = doc.colorSamplers.add([1208, 1252]);
                    layersArr [0] = Math.round(theSampler1.color.rgb.red);
                    layersArr [1] = Math.round(theSampler1.color.rgb.green);
                    layersArr [2] = Math.round(theSampler1.color.rgb.blue);
  colors = colors + ("\ntheSampler1 x=" + theSampler1.position[0].value + " ,y=" + theSampler1.position[1].value + " Color=" 
  + layersArr[0] + ","  + layersArr[1] + "," + layersArr[2] + "\n");
               }
       else{
                    theSampler1 = doc.colorSamplers.add([580, 380]);
                    layersArr [0] = Math.round(theSampler1.color.rgb.red);
                    layersArr [1] = Math.round(theSampler1.color.rgb.green);
                    layersArr [2] = Math.round(theSampler1.color.rgb.blue);
  colors = colors + ("\ntheSampler1 x=" + theSampler1.position[0].value + " ,y=" + theSampler1.position[1].value + " Color=" 
  + layersArr[0] + ","  + layersArr[1] + "," + layersArr[2] + "\n");
               }
          }
alert(colors)

I'm on Windows 10 CC 2015 with the four update you code works on my system once I added the missing bracket ], defining the layerArr and setting doc your code worked.

Are you sure at your sample points your doc has a color  other than black.  I add a layer where  I had red and 50% gray in those areas and that was what was set into you layerArr array. which you reuse for the second sample