CSC 101L Summer 2010 Lab #7 Photoshop I Familiarization Your Name: WFU e-mail address: Objectives of this lab: Lab Questions: There are short-answer questions embedded in the instructions and at the end. Answer these questions by selecting the correct response(s). If you do not finish the lab during the lab period, finish it after the quiz on Wednesday. Post your edited image file thread.jpg to your web page as instructed in Step IV, V, and VI, and submit this lab report to complete the lab. Please feel free to note on your report any comments, feedback, questions, problems encountered during this lab, or topics you want to know more about.
Lab Instructions: I. View these Photoshop videos: Workspace Tutorial http://www.cs.wfu.edu/~sjt/csc101/labs/01-workspace/ylwong-sc-photoshop-cs2- workspace.html Tool Palette Tutorial http://www.cs.wfu.edu/~sjt/csc101/labs/02-toolpalette/ylwong-sc-photoshop-cs2- toolpalette.html Layers Tutorial http://www.cs.wfu.edu/~sjt/csc101/labs/03-layers/ylwong-sc-photoshop-cs2- layers.html YouTube video on hair and eye retouching II. Create a lab7 Folder Within your csc101 folder, create a new folder and name it lab7. Download the file named thread.psd from the Resources link of the course web page and store it under the name thread.psd in your lab7 folder. The file will also be e-mailed to you before lab. III. Familiarization Exercises Some of these exercises are very simple and the answer will be immediately obvious. When that is not the case, it is up to you to use the built-in Photoshop Help facilities to find the answers. The collection of icons on the left side of the Photoshop interface is called the Toolbox. This first exercise will help you become familiar with the location and name of some frequently used Photoshop tools. You will use some of these in this lab and the next lab to edit images.
Draw a line from each of the following tool names to its corresponding icon in the Toolbox. Don t make it difficult!! Lasso Marquee Magic wand Crop Brush Move Heal Clone Eraser Eyedropper Zoom Hand Quick Mask (1.5 points) Circle the correct selection option (found in the Option Bar) to accomplish each task. 1. To add to a selection: 2. To subtract from a selection: 3. To select only an area intersected by other selections:
Match the following description (A-N; with distractors) to the tools/commands in Questions 1-10. 1. Rectangular marquee tool 2. Lasso tool 3. Polygonal lasso tool 4. Magnetic lasso tool 5. Magic wand tool 6. Pen tool 7. Select > All 8. Select > Deselect 9. Select > Inverse 10. Select > Color Range... A. Used to select an area with straight edges; to use it, you click to specify the points that define the boundary of the area. B. Used to select an area/object containing pixels that are different in color from the surrounding area; to use it you move the cursor along the border of the object to be selected and Photoshop adjusts the border to a good fit C. Used to select a rectangular area in an image. D. Used to select a consistently colored area without having to trace its outline. E. Drag to move the selected pixels. F. Draw a hard-edged line. G. Enter a value for the Feather Radius to define the width of the feathered edge. H. Used to select an area with an arbitrarily complex border; to use it, you move the cursor along the edge of the area to be selected. I. Position the pointer over the image or preview area, and click to sample the colors you want included. Adjust the range of colors using the Fuzziness slider or by entering a value. To decrease the range of colors selected, decrease the value. J. Lets you create straight lines and smooth flowing curves with precision; for most users, this tool provides the best control and greatest accuracy for drawing K. Turns off the selection of the currently selected pixels. L. Selects the currently unselected pixels. M. This will reselect the most recent selection. N. Selects all the pixels in the image. III. Changing an object color in an image You will need to work out a solution to this task on your own based on the classroom demonstration. Hint: Use Help to read about "replace color command" 1) Open the image file, thread.psd. Ignore any error messages you receive when you open the file. 2) Change the color of the foremost thread roll from orange to light purple. (See the images below.) Only change the orange color of the roll in the front; all other colors in the image should remain unchanged. Original thread.psd before change of colors Completed image After change of colors
Describe how you approached this task and your process. Note: Your description is more important than the appearance of your recolored image, so please take your time and describe what you did. If you have successfully changed the color of the orange roll of thread: describe how you did it step-by-step, if possible comment which part of the online Help instructions you find useful or confusing IV. Save as a JPEG Once you have finished making changes to thread.psd, use File -> Save As to save it as a JPEG image. Use the default values. V. Upload your thread.psd file Upload your thread.jpg file to your csc101\lab7 folder on the web server VI. Modify your index.html file for your csc101 lab page to add an entry for lab7, similar to that for lab6. All you need for the lab7 entry is a link to your thread.jpg file. **** If you are having problems seeing your files after they are uploaded, try updating your permissions. Goto http://www.wfu.edu/update.html and enter your username and password. - Select Set permissions for personal home page and click continue. - Select yes from pull down menu and click SUBMIT - This should solve most problems.