Replaced selection with channel, can't edit selected area

1. How do I edit a selected area in Photoshop?
2. How do you edit channels in Photoshop?
3. How do I edit a quick selection in Photoshop?
4. How do I select a mask in Photoshop?
5. What are image channels?
6. What are channels in Photoshop used for?
7. How do I get rid of quick selection tool?
8. How do I reverse the quick selection tool?

How do I edit a selected area in Photoshop?

Expand or contract a selection by a specific number of pixels

1. Use a selection tool to make a selection.
2. Choose Select > Modify > Expand or Contract.
3. For Expand By or Contract By, enter a pixel value between 1 and 100, and click OK. The border is increased or decreased by the specified number of pixels.

How do you edit channels in Photoshop?

Select and edit channels

1. To select a channel, click the channel name. Shift-click to select (or deselect) multiple channels.
2. To edit a channel, select it and then use a painting or editing tool to paint in the image. You can paint on only one channel at a time.

How do I edit a quick selection in Photoshop?

Quick Selection tool

1. Select the Quick Selection tool . ...
2. In the options bar, click one of the selection options: New, Add To, or Subtract From. ...
3. To change the brush tip size, click the Brush pop-up menu in the options bar, and type in a pixel size or drag the slider. ...
4. Choose Quick Selection options:

How do I select a mask in Photoshop?

Open an image in Photoshop and do one of the following:

1. Choose Select > Select and Mask.
2. Press Ctrl+Alt+R (Windows) or Cmd+Option+R (Mac).
3. Enable a selection tool, such as Quick Selection, Magic Wand, or Lasso. Now, click Select and Mask in the Options bar.

What are image channels?

A channel in this context is the grayscale image of the same size as a color image, made of just one of these primary colors. For instance, an image from a standard digital camera will have a red, green and blue channel. A grayscale image has just one channel.

What are channels in Photoshop used for?

Photoshop uses channels to store color information about an image or to store selections. Photoshop creates color information channels automatically and all Photoshop images contain at least one channel. Bitmap-mode, grayscale, duotone, and indexed-color images are each single-channel modes.

How do I get rid of quick selection tool?

The Quick Selection tool automatically changes to the Add to selection option. To subtract from the initial selection, press the Option key (MacOS) or Alt key (Windows) as you select an area you want to remove from the selection.

How do I reverse the quick selection tool?

To undo the last click or drag of the Quick Selection tool, press Ctrl-Z/Cmd-Z.