SOS 3D - Digital Imaging

Opening a file File > Open and navigate to your file. Never open a file over the network (if your file is on Orca, first copy it to your local hard drive).
Intro to basics Photoshop interface elements
navigating an image
- Zoom: Cmd +/-
- Hand tool: Space Bar (used to move around an image)

Image size and resolution

What is a pixel? Zoom all the way in on your image.
What are the dimensions of your image?
- Go to Image > image Size to see the overall size in pixels of your image
- Resizing photos for various usages including: Web, email attachment, and print
What is the resolution of your image? Why does it matter?
Cropping - using the crop tool to remove portions of the image outside of the crop selection
- You can set the image size to crop to in the properties bar i.e. 400 px (remember the px)

Image adjustments

located under Image > Adjustments

Levels - set your black point

Saving your work

File > Save as. Choose Photoshop as the file format. This will create a uncompressed Photoshop native image file format. It's a good idea to keep an uncompressed copy of your images.

Working with Layers

What are layers in Photoshop?
Create new layers
Hiding and linking layers
Copying between layers
Duplicating layers
Adjustment layers
Clipping layers
Layer masks

Working with selections

intro to selection tools: marquee, lasso, magic wand etc.
adjusting selections
copying selections to another layer

Saving for web

Saving for web: File > Save for Web & Devices
- Choose the highest quality with the best (smallest) file size.

SOS 3D - Digital Imaging

Contents

Scanning

Photoshop interface and navigating an image