问脚本Photoshop Difference Blendmode

EN

var doc1 = app.open(new File("~/Desktop/test1.bmp"));
var doc2 = app.open(new File("~/Desktop/test2.bmp"));

doc2.selection.selectAll();
doc2.selection.copy();

app.activeDocument = doc1;
var newLayer = doc1.paste();
newLayer.blendMode = BlendMode.DIFFERENCE;

var histogram = doc1.histogram;
for (var i = 1; i < histogram.length; ++i) {
    if (histogram[i] > 0) {
        alert('Different!');
        break;
    }
}