🚀 go-pugleaf

Hi Robin,

I have this script for scanning a picture for colored pixels. This works fine for me.
I hope it will help you

var myDoc = app.activeDocument;

if(myDoc.mode != DocumentMode.GRAYSCALE && myDoc.mode != DocumentMode.BITMAP){

	var docWidth = myDoc.width;
	var docHeight = myDoc.height;
	var xPos = 0;
	var yPos = 0;

	app.activeDocument.colorSamplers.removeAll();
	var pixelLoc = [UnitValue(0) , UnitValue(0)];
	var myColorSampler = app.activeDocument.colorSamplers.add(pixelLoc);

	for(xPos = 0; xPos <= docWidth; xPos++) 	{ 		var myColor = myColorSampler.color; 		var hsb_H = myColor.hsb.hue; 		var hsb_S = myColor.hsb.saturation; 		var hsb_B = myColor.hsb.brightness; 		//$.writeln (hsb_H + "/" + hsb_S + "/" + hsb_B) 		if( hsb_H != 0 || hsb_S != 0){ 			alert("Bild ist farbig!"); 			break;}

		if(xPos == docWidth)
		{
			xPos = 0;
			yPos++;
			if(yPos == docHeight){
				alert("Bild ist ein Graustufenbild.");
				break;
			}
			pixelLoc[1] = yPos;
		}
		else
		{
			myColorSampler.move(pixelLoc);
			pixelLoc[0] = xPos;
		}
	}
}