# Week #5 \~ Section ♳
## :knife: Selection and cut out in PS :knife:
### Selection
A selection is the area of an image that you define for manipulation of any kind, allowing you to isolate one or more parts of an image. You can make a selection with various selection tools, commands, and the Select and Mask workspace in Photoshop.
If you have multiple layers, first define the layer you want to make a selection and later manipulate it. Keep in mind that **Select All** (Command/Ctrl + "A") will select everything in your document and **Deselect All** (Command/Ctrl + "D") will deselect everything in your document.
There are three main categories for selection tools in PS:
**Rectangular and Oval selections**
The Rectangular/circular selections tools are used to make basic rectangular/cingular selections. Click on the area you want and drag to make a selection. If you want the same proportion selection (square or circle), press the **Shift** key as you’re dragging.
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**Free-form selections**
The Lasso tool is for making free-form selections. The Polygonal Lasso tool is used to make straight-edged segments of a selection. It comes in handy to select objects with a straight edge.
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**Quick Selection**
This set of tools the most fun category of working with selection tools! It is a fast and easy way to select the area you want! Under this category there are three tools:
**Object Selection tool**
You simply draw a rectangular region or a lasso around the object, the Object Selection tool automatically selects the object inside the defined region. The tool works better on well-defined objects than on regions without contrast.
**Quick Selection tool**
You can use the Quick Selection tool to quickly "paint" a selection using an adjustable round brush tip. As you drag, the selection expands outward and automatically finds and follows defined edges in the image. Hold the **Shift** key to add to the selection and hold the **Alt** key to remove from the selection.
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### **Remove/replace small areas**
This set of tools is good if you want to remove spots or small objects. I will tell you about the **Patch Tool** and leave the rest of the tools for you to explore more!
**Patch Tool** synthesizes nearby content for seamless blending with the surrounding content. Select an area to replace on the image (You can use the Patch tool to draw a selection, or use any of the other selection tools as well). Drag the selection over the area you want to generate a fill from.
### **Additional convenient techniques**
There are tons of ways in PS that you can make selections and cut, remove, or replace a shape! The technique that you use is a matter of habit, speed, and convenience! Here are some different techniques you can try and see which one fits the best based on your need:
Mask out part of a layer based on the luminosity of pixels with **Blend If!**
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Remove and replace part of an image with **Content Aware!**
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