Tue, Jan 16
Imaging Basics
Today's objectives
- Review basic computers handout
- Understand resolution and bit depth
- Learn basic Photoshop operations
- Introduce Basic Photoshop tools
Contextual menus (right-click)
Preparation
- Download Photoshop sample files before class (linked below)
- Download and review handouts
🔰 In class practice task: Pixel dimensions and resolution
Download the resolution task sample files
Submit all three files at the specified pixel dimensions, resolution and file type.
Make sure to pay close attention to file names.
- image-01 - save in JPEG format, 300 ppi. Do not change the number of pixels. Save file as YOURLASTNAME_task1-image-01 and make sure it has the correct file extension for the file format required.
- image-02 - save in PSD format, 240 ppi. Save at print size that will fit an 8x10 inch page - image should fit with or height but may not fit exactly in other dimension. Save file as YOURLASTNAME_task1-image-02 and make sure it has the correct file extension for the file format required.
- image-03 - save in JPEG format, 400px wide. Save file as YOURLASTNAME_task1-image-03 and make sure it has the correct file extension for the file format required.
- image-04 - try changing the resolution to 300ppi while leaving the print dimensions the same. Note: this is not normally a good idea - the point here is to see what happens when you try. Save file as YOURLASTNAME_task1-image-04 and make sure it has the correct file extension for the file format required. Save in PSD format.
For each, make a note for yourself: does the image you have submitted have more, fewer, or exactly the same number of pixels?
Submission:
Upload each file file to Brightspace in class.
Samples
Download sample images for in-class use.
Download a large image to see how to deal with it.
Download In-class practice task files
On you own, explore the "Image size" function with each of these files. Assume you want to end up with a file that will fit on an 8x10 inch page, and is 240 ppi (pixels per inch)
downsample.jpg
you need to reduce both the image dimensions and the resolution in pixels per inch
small-file.jpg
you can try increasing the image dimensions and resoliution but observe the results
72ppi-24MP.jpg
this file is at 72ppi but has lots of pixels - check the image dimensions. Fix it.
Handouts
Download Storage Units handout in Acrobat
PDF format PDF
Download File Formats handout in Acrobat
PDF format PDF
Download Resolution handout in Acrobat
PDF format PDF
Presentations
Tutorials
Video: Brushes
Video: Using the Clone Stamp Tool
Old video - sorry for the bad sound.
Decreasing resolution
Assignment
Assignment 2: Make a version
Start with a photograph. (Not a picture from a book or other commercially printed source.) The photograph needs be your own work. You can create an image with a digital camera or phone. Then, create a new version of the original. Make sure to save your original file and your altered file.
Remember: Images you use in this class need to be your own creation. Any exceptions to this will be noted in the assignment details I post for each assignment.
The unaltered image needs to be an image you created. You many not use any other images as part of the assignment.
The version should be based on
one of the following themes:
-
Colour: Change colours. Make colourful things less colourful. Make less colourful things more colourful. Use selections carefully - both of regions in your image, but also geometrical selections. Show multiple ways of working - painting, cloning, saturation sponge, moving selected areas, etc.
-
Clean up your mess: Start with an image of a messy workspace, the more mess the better. It could be a studio, desk, kitchen or elsewhere. Note that you will need to find multiple things to "clean up" - success on this assignment means showing multiple "fixes" of different types, using different tools.
-
Time: Turn night into day, or day into night. Don't just make the images brighter or darker, think about how everything changes: how busy it is, what people are doing, differences in lighting, etc.
Read all instructions carefully.
Failing to follow assigned instructions may result in lost points.
Technical requirements:
You must demonstrate use of most of the following tools as a
minimum:
- Clone stamp
- Dodge and burn
- Paintbrush
- Selection tools, including marquee and object select tools
General requirements:
- You may not use filters for this assignment.
- Don't be afraid to change the image radically from the original.
- Don't include parts of other images; that will be the next assignment.
- For this assignment, use a resolution 240 pixels/inch. Both your original and altered image should be set to 240 ppi. Your both your original and altered image should be set up to fit on a 8.5 x 11 inch page - either wide or tall orientation are fine.
Submission
Format: Save as Photoshop file. Filename: YOURLASTNAME_Assignment2a.psd for your original and YOURLASTNAME_Assignment2b.psd for your altered version.
In the Brightspace comments, note your "theme" (the option you chose),the pixel dimensions, (x by y pixels, the print size (in inches) and the print resolution in pixels per inch.)
Upload the two files to Brightspace by 6 pm,
Mon, Jan 22
Checklist:
Marking guidance
This is meant to be a general guide. Your mark will be governed by the overall quality of the assignment.
Resolution low: -2 points.
Resolution much too low: -4 points.
Missing information/wrong file name: -1 point per item
Range of tools: 0-4 points
Quality of work: 0-4 points
Technical correctness: 0-2 points
Professional practice
Bitmap images are the foundation of many design activities.
Critical professional practice points include:
- Showing attention to detail in your work - if it looks wrong, it probably is wrong.
- Understanding the resolution and file format requirements for the media you are working in.
- Using techniques that allow you to easily modify an image.
- Being aware of intellectual property aspects - do you have right to use an image for a particular purpose?
Make sure you understand the basic concepts of pixel dimensions, resolution and bit depth.
This web page has more detailed information.
- Practice with the clone stamp tool until you can get good results without effort.
- Open images from different sources - your camera, phone, etc. Make sure you are clear as to why the resolution is shown in the way it is.