© 2011 Delmar, Cengage Learning Chapter 15 Performing Image Surgery

Chapter Lessons Delete unnecessary imagery Correct colors in an image Tweak an image © 2011 Delmar Cengage Learning

Problem solving skills are required to evaluate and modify images –Identify color problems to correct –Determine which objects to keep and which to delete –Modify objects to attain a specific look © 2011 Delmar Cengage Learning Understanding Realities

Identify the tools available to modify images Evaluate an image to determine the changes required Identify the best method to use to make the changes © 2011 Delmar Cengage Learning Assessing a Situation

Performing Surgery I Use selection tools to create separate layers Duplicate selected layers Change the background color Use eraser tools to eliminate unwanted imagery © 2011 Delmar Cengage Learning

Performing Surgery II Use eraser tools to remove dirt and smudges Add contrast or modify brightness Use the Liquify feature to modify selected areas Apply filters © 2011 Delmar Cengage Learning

Surgery Results © 2011 Delmar Cengage Learning AfterBefore

© 2011 Delmar Cengage Learning Candles layer is copied before modifications are made Layers Panel

Image Removal Methods © 2011 Delmar Cengage Learning

Removing Imagery Click the Magnetic Lasso tool on the Tools panel Drag the pointer around the image Click to close the selection when the “o” appears on the pointer Click Edit on the Application bar, then click Clear © 2011 Delmar Cengage Learning

Removed Imagery © 2011 Delmar Cengage Learning After Before

Correct Colors in an Image To make color-correcting adjustments: –Click Image on the Application bar –Point to Adjustments –Click the type of color adjustment required © 2011 Delmar Cengage Learning

Questions to Ask Before correcting colors in an image, ask the following questions: –What’s lacking from the image? –Is the problem composition or color-related? –Are colors washed out or vibrant? –Is color deficiency really a problem? –Will changing the colors make the image look unnatural? © 2011 Delmar Cengage Learning

Correcting Colors Modify settings in the Color Balance dialog box Modify settings in the Brightness/Contrast dialog box © 2011 Delmar Cengage Learning

Hue/Saturation Settings in Adjustments panel © 2011 Delmar Cengage Learning

Brightness/Contrast Settings in Adjustments Panel © 2011 Delmar Cengage Learning

Image Resizing: changing the size the image will print without changing the number of pixels in the image Image Resampling: Changing the number of pixels in the image © 2011 Delmar Cengage Learning Resizing vs. Resampling

Use the Crop tool in the Tools panel Use cropped area settings to view how the image will appear after cropping © 2011 Delmar Cengage Learning Cropping Images

Interpolation Methods © 2011 Delmar Cengage Learning

Cropping an Image Process Click the Crop tool on the Tools panel Drag the pointer around the area to retain Click the Commit current crop operation button © 2011 Delmar Cengage Learning

Cropped Area in an Image © 2011 Delmar Cengage Learning Darker area will be deleted after cropping

Adding Layer Styles Apply styles usually applied to type layers, such as Drop Shadow and Inner Shadow to image layers Select the layer to modify, then click the Add a layer style button on the Layers panel © 2011 Delmar Cengage Learning

Style Added to a Layer © 2011 Delmar Cengage Learning Bevel and Emboss style added