lightarid: How To Use Marquee Tool In Photoshop

How To Use Marquee Tool In Photoshop

I mentioned in that same tutorial that Photoshop gives us lots of different tools for selecting things in an image, some basic and some more advanced (although it's funny how even so-called "advanced" tools can seem quite basic once you're comfortable with them). In this tutorial, we'll look at one of the most common and easiest selection tools to use, the Rectangular Marquee Tool, one of Photoshop's basic selection tools that, along with the Elliptical Marquee Tool and the Polygonal Lasso Tool, is designed for making selections based on simple geometric shapes. As the name implies, the Rectangular Marquee Tool is perfect for times when you need to draw a selection in the shape of a rectangle or a square.You'll find the Rectangular Marquee Tool sitting at the very top of the Tools panel in Photoshop. It's the tool with the icon that looks like the outline of a square. Click on it to select it:
The Rectangular Marquee Tool in Photoshop. Image © 2009 Photoshop Essentials.com
The Rectangular Marquee Tool is located at the top of the Tools panel.

If you're using Photoshop CS4 as I am here, or Photoshop CS3, and you have your Tools panel set to a single column layout, the Rectangular Marquee Tool will be the second icon from the top:
The Rectangular Marquee Tool in the Tools panel. Image © 2009 Photoshop Essentials.com
The Tools panel in Photoshop CS3 and higher can be displayed in either a single or double column layout.
Drawing Rectangular Selections

Using the Rectangular Marquee Tool in its most basic form is easy. You simply click with your mouse at the point where you want to begin the selection, which will usually be in the top left corner of the object or area you need to select, then continue holding your mouse button down as you drag towards the bottom right corner of the object or area. When you release your mouse button, the selection is complete!

Here's a photo of some wooden blocks:
A photo of wooden blocks. Image licensed from iStockphoto by Photoshop Essentials.com
Colorful wooden blocks.

See that large red block in the top row? Let's say I wanted to change its color, a very simple thing to do. Now, if this was Star Trek, I could simply say "Computer, select red block, top row", followed by "Change color to purple", or whatever color we wanted. Unfortunately, reality hasn't quite caught up to science fiction just yet, but that doesn't mean life in this day and age is unbearably difficult. Far from it! Photoshop may not be able to identify the wooden block, since all it sees are pixels, but not only can you and I see it, we can see that it's very clearly in the shape of a rectangle, which means that the task of selecting it is perfectly suited for the Rectangular Marquee Tool.

First, I'll select the Rectangular Marquee Tool from the Tools panel as we saw a moment ago. You can also select tools using their keyboard shortcuts. Pressing the letter M on your keyboard will instantly select the Rectangular Marquee Tool. Then, to begin the selection, I'll click in the top left corner of the block. While still holding down my mouse button, I'll drag towards the bottom right corner of the block:
Drawing a selection with the Rectangular Marquee Tool. Image © 2009 Photoshop Essentials.com
Click in the top left corner to begin a selection, then drag down to the bottom right corner. Release your mouse button to complete it.

If you find that you didn't begin your selection in exactly the right spot, there's no need to start over. Just hold down your spacebar, then drag your mouse to move the selection where you need it. When you're done, release your spacebar and continue dragging out the selection.

To complete the selection, all I need to do is release my mouse button. The wooden block is now selected (or at least, the pixels that make up what we see as the block are selected), and a selection outline appears around the block in the document window. Any edits I make at this point will affect that specific block and no others:

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