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Selections and Masks

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Jessica Vallelungo

on 12 September 2013

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Transcript of Selections and Masks

Photoshop: Selections and Masks
Understanding Layers
Destruction and Editing
Layer Masks
Quick Keys, Short Cuts, and Extras
Turn in Question Sheet
You place images, effects, styles, and type on separate layers so that you can manipulate each component independently.

You can modify each layer individually without affecting other layers.

The true functionality of Photoshop is found in its ability to manipulate selections and layers.
Why Are Layers Important?

Provides ability to isolate effects and images on one layer without affecting other layers
Why do we use layers?
Advantages of Using Layers:
Disadvantage of Using Layers:
An image containing multiple layers can get very large
Always be aware of what layer you have selected!

Before you do anything to your image, look to the right of your screen and make sure you are on the correct layer!
This is something even Ms. Vallelungo does!
Change the order of layers
What Can You Do With Layers

Add, delete, and move layers
Drag a portion of an image to another Photoshop image
Hide and display layers
Change the opacity of a layer
Know what the layer's panel contains
Examining Layers
Deleting Layers
Eye Ball
hides and shows layers
Layer thumbnails
A miniature picture of each layer’s content
Name of each layer
Layer Mask
Creating Layers
Gourd in front of Wreath

Gourd behind Wreath

Layer Organization: Example

Naming a layer based on the contents of a layer is an ESSENTIAL component to ensuring you are manipulating the correct layer.
Naming Layers
Double-click directly on the layer name in the Layers panel and type a new name
Changing a layer name is EASY and QUICK:
You should always rename EVERY layer in a project. It will ALWAYS be part of your overall craft grade!
Ultimately, if you save your file as a non-native format (other than TIFF), your file will flatten
File Format and Layers
Not all formats can hold layers
Sometimes you have the option of saving with or without layers
Non-Native Files
Native File
(.jpg, .pdf, .eps, .png)
Permanently changes your pixels
Destructive editing in Photoshop
Examples: Adjustments of brightness, contrast, tools, color changes, filters, paint brush, eraser, red eye tool, transform control, etc.
Think of it this way, you’re permanently changing your pixels
We’re not talking about going back in your history or reverting a file
(finger painting directly onto artwork)
Non-Destructive Editing in PS
No pixels are destroyed in non-destructive editing
There are several Non-Destructive functions
Smart Objects
Adjustment layers
Layer Masks
(different kinds of…)
If you want to block of part of your image but still want to keep the pixels?
You can create a mask
Masks let you isolate and protect areas of an image as you apply color changes, filters, or other effects to the rest of the image
Used for precision
Temporary Masks
Quick Mask
Black adds Mask
Default color is red due to traditional printing mask technique involving “rubyliths”
White removes Mask
Go to your Layers palette
Click on the “Add Layer Mask” button
Layer Masks
Also non-destructive way to edit parts of a layer
Need to have the layer mask selected to work on it
X on the keyboard is shortcut for switching foreground/background colors
White removes mask
Black adds masks
Background Layer
resolution-dependent bitmap images that are edited with the painting or selection tools.
Layer masks
Smart Objects
Background Layer
Important Definitions
preserve an image’s source content with all its original characteristics, enabling you to perform ONLY
nondestructive editing to the layer
An image can have only one background layer. You cannot change the stacking order of a background layer, its blending mode, or its opacity. The word background is italicized and the layer is locked. You CAN convert a background layer to a regular layer.
{we will get into this later in the semester}
1.) Add mask
4.) Make sure Foreground color is BLACK to add or WHITE to remove
5.) Hardness at 0% for non overlapping areas or 100% for overlapping areas.
3.) Select BRUSH tool
2.) Make sure mask is activated
After Masking
Before Masking
When should the brush hardness be at 100%?
0% hardness versus 100% hardness
{hard edge}
{"feathered" edge}
Blurs edges by building a transition boundary between the selection and its surrounding pixels. This blurring can cause some loss of detail at the edge of the selection.
Important Definitions
Controls the size of the brush’s hard center. Type a number, or use the slider to enter a value that is a percentage of the brush diameter.
Size of the brush. Bigger the number, bigger the brush.
Brush Diameter
switch foreground/ background
brush tool
undo last step
undo more than one step
In the visual arts,composition is the placement or arrangement of visual elements in a work of art, as distinct from the subject of a work. The term composition means 'putting together,' and can apply to any work of art, from music to writing to photography, that is arranged or put together using conscious thought. The term composition is often used interchangeably with various terms such as design, form, visual ordering, formal structure, or page layout.
A project management term for the quantifiable goods or services that will be provided upon the completion of a project. Deliverables can be tangible or intangible parts of the development process, and are often specified functions or characteristics of the project.
The process and art of combining text and graphics and communicating an effective message in the design of logos, graphics, brochures, newsletters, posters, signs, and any other type of visual communication
Graphic Design
The creative convergence of digital arts, science, technology and business for human expression, communication, social interaction and education.
Digital Media
Steps to Masking:
After Masking
Before Masking
Articulate ALL of the visual differences in the before and after images.
0% Hardness
100% Hardness
Brush Diameter
move tool
Why do we use "Save As" for the first save of the project and the last save of the project, but no other time?
Do you get this reference?
Start Brainstorming Worksheet
This is called flattening
Important Definitions
Resolution is the term used to describe the number of dots, or pixels, used to display an image. Higher resolutions mean that more pixels are used to create the image, resulting in a crisper, cleaner image.
Refers to the width and the height of the workspace.
Canvas Size
Refers to the Pixel Dimension, Canvas Size, and Resolution.
Image Size
Short for Picture Element, a pixel is a single point in a graphic image. Graphics monitors display pictures by dividing the display screen into thousands (or millions) of pixels, arranged in rows and columns. The pixels are so close together that they appear connected.
Important Definitions
Artwork that is composed of mathematical descriptions of a series of lines and geometric shapes. Vector Images are resolution independent; they can be freely scaled and are automatically output at the resolution of the output device.
Vector Image
Condenses all the image layers into a single layer image. This process cannot be undone.
The process of converting a vector image into a bitmap image
A grid of individual pixels (rasters or bits) in rows and columns called a bitmap). Raster Image files are resolution dependent which is usually determined when you scan, photograph or create the file originally.
Raster Image
The process of combining any two or more objects into an overall design
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