Photoshop Selections: The Lasso Tool
Learn Photoshop with Photoshop Basics Tutorials at Photoshop Essentials.com
Written by Steve Patterson. So far in our journey through Photoshop's various selection tools, we've looked at how the Rectangular Marquee Tool allows us to easily draw selections based on simple rectangular or square shapes, and how the Elliptical Marquee Tool extends our selection making abilities into the exciting world of ovals and circles.
But what if we need to select something in a photo that's a little more complex, like someone's eyes, an item of clothing, or maybe a car or a bottle? Something that still has a clearly defined form to it but is beyond the capabilities of Photoshop's geometry-based Marquee Tools.
If you're a more advanced Photoshop user, you'll probably head straight for the Pen Tool, the tool of choice for making professional quality form-based selections. But if you have a good quality mouse (or even better, a pen tablet), decent drawing skills and a little patience, you may find that the Lasso Tool, another of Photoshop's basic selection tools, is all you need.
Download our tutorials as printable PDFs! Learning Photoshop has never been easier!
Photoshop actually gives us three variations of lasso to work with. The one we'll be looking at in this tutorial is the standard Lasso Tool, which you can access by clicking on its icon in the Tools panel. It's the tool that looks like the sort of lasso you'd find a cowboy swinging at a rodeo:
For a faster way to select the Lasso Tool, simply press the letter L on your keyboard. There are two other types of lasso tools as well - the Polygonal Lasso Tool and the Magnetic Lasso Tool, both of which are hiding behind the standard Lasso Tool in the Tools panel. We'll look at both of these tools in separate tutorials, but to access either of them, simply click and hold your mouse button down on the standard Lasso Tool until a small fly-out menu appears, then select either tool from the menu:
All three lasso tools share the letter L as their keyboard shortcut for selecting them, so depending on how you have things set up in Photoshop's Preferences, you can cycle through the three tools either by pressing the letter L repeatedly or by pressing Shift+L. We covered how to change the option in the Preferences for switching between tools in the Elliptical Marquee Tool tutorial.
Drawing Freehand Selections
Of all the selection tools in Photoshop, the Lasso Tool is probably the easiest to use and understand because you simply drag a freehand selection around the object or area you want to select, in a similar way to how you would outline something on a piece of paper with a pen or pencil. With the Lasso Tool selected, your mouse cursor will appear as a small lasso icon, and you simply click at the spot in the document where you want to begin the selection, then continue holding your mouse button down and drag to draw a freeform selection outline:
To complete the selection, simply return to the spot where you began and release your mouse button. You don't necessarily have to return the same spot you started from, but if you don't, Photoshop will automatically close the selection for you by drawing a straight line from the point where you released your mouse button to the point where you began, so in most cases, you will want to finish where you started:
To say that the Lasso Tool is not the most accurate of Photoshop's selection tools would be an understatement, but its usefulness is greatly improved with Photoshop's ability to add to and subtract from selections. I find that the best way to work with the Lasso Tool is to drag an initial selection around the object or area I'm selecting, ignoring any obvious mistakes I made, then going back around and fixing up the problem areas by adding to or subtracting from the selection as needed.
Here's a photo I currently have open on my screen of two people shaking hands. I want to select the handshake and place it into a different image:
To begin my selection, I'll first grab the Lasso Tool from the Tools panel as we saw earlier. Then I'll click somewhere along the top of the sleeve of the person on the left to begin my selection, although it really makes no difference where along the object you begin your selection with the Lasso Tool. Once I've clicked on a starting point, I'll continue holding my mouse button down as I drag to draw an outline around the area of the photo I need. I can already see that I've made some mistakes, but I'll ignore them for now and continue on:
If you need to scroll your image around inside the document window as you're drawing the selection, hold down your spacebar, which will temporarily switch you to Photoshop's Hand Tool, scroll the image as needed, then release your spacebar and continue drawing the selection.
To make sure I select all of the pixels I need along the edge of the photo, I'll press the letter F on my keyboard to switch to Full Screen Mode with Menu Bar and I'll drag my selection outline into the gray pasteboard area surrounding the image. Don't worry about selecting the pasteboard, since Photoshop only cares about the image itself, not the pasteboard area:
If you want to switch back to the document window view mode, press the letter F a couple more times to cycle through Photoshop's screen modes. I'll continue dragging around the area I need to select until I'm back to my starting point, and to complete my initial selection with the Lasso Tool, I'll simply release my mouse button. An animated outline, commonly known as "marching ants", now appears around the selected area:
Since the Lasso Tool is essentially a manual selection tool that relies heavily on your own drawing skills, as well as on the accuracy and performance of your mouse, you'll probably end up with an initial selection outline that falls well short of perfect, as mine did. Not to worry though, since we can easily go back and fix up the problem areas, which we'll do next!
Now there's a better way to learn! Download our tutorials as print-ready PDFs!
Go to page: 1 | 2