Cut out is process where the designer removes an object or background out of a photo. Mainly, this is used to get a high quality PNG (transparent file) file format of anything
Layers are obviously the single most important addition to Photoshop since the original version was released, but layer masks are a closely second
The word “mask” is not immediately meaningful to someone outside the area of graphic design. For it’s simplest definition a mask is the way of applying something to a very specific part of image
Mainly there are two types of masks: clipping mask and the other is layer mask. These two tools are closely related to each other, but not the same in application though. Let’s start by discovering the layers masks, which are what people are referring to when you are listening them discuss about Photoshop masking.
Why we use layer mask?
So far I have talked about the purpose of layer masks. That is to make some parts of the layer invisible. But we can also do it rather easily with the Photoshop eraser tool. Then why we have to bother about using layer masks? The answer is simple. If we use the eraser tool, erase the any part of the layer and save it, then there is no going back. That means the erased part is gone forever.
But that is not professional. In any case we might need that part again. This is where the layer masks will triumph. If you create a layer mask and remove the selected parts by making them invisible, then you are actually doing the editing on the layer masks, not on the layer. The layer itself remains intact. So does all the image parts. Nothing is getting destructed or erased. It is just getting invisible. So the basic math is if you want to hide some part of the layer then create a layer mask and paint it black. You want to get that part back? No problem. Just edit the layer mask and paint it white. You will get that part back like it was never removed at all! That is why using layers masks are known as non-destructive method of photo editing. Sounds like a pro right?