Chapter 8

1. Chapter 8 Digital Image Imagination Skills

2. Chapter 8 Lessons Lesson 8-1 Scan and Enhance Digital Graphics Lesson 8-2 Capture Images from a Camera to a PC Lesson 8-3 Manipulate Graphics in Documents Chapter 8

3. Image is Everything • Images include: • Graphics • Videos • Charts • Graphs • Photos • Drawings • Pictures • Images can make the difference between captivating presentations and a failed message. Chapter 8

4. In this Lesson You Will: 1. Learn about pixels, rasters, vectors, and resolution. 2. Learn about appropriate file formats for both online and printed documents. 3. Select images, learn the basics of scanners, position images, and consider the orientation of an image. 4. Preview, adjust, and scan images. 5. Scan color, grayscale, and black-and-white images. 6. Use Windows Live Photo Gallery to manipulate images. 7. Tag images for convenient recovery and easy retrieval. 8. Adjust the brightness, contrast, hue, and saturation levels of an image. 9. Acquire and adjust images from cameras. Lesson 8-1 Scan and Enhance Digital Graphics Chapter 8

5. Rasters, Bitmaps, Vectors, and Dots • Digitizingdivides an image into tiny squares in a grid pattern. • Each tiny square is given a mathematical value. • That value is translated into black, white, or another color. • The result is a bitmap image – a collection of dots. • Resolution is often expressed in dots per inch (DPI). • Pixels are little dots of light on a monitor; the resolution is measured in pixels per inch (PPI). • Raster graphics capture little dots as squares of color. • Vector graphics use mathematical formulas to define all the shapes of an image and so do not display jagged squares on edges when you zoom in. Chapter 8

6. Save the Image in Either a Web or Printed Format Chapter 8

7. Image Selection • Scanners are great tools for capturing existing images. • Scanners can also be used to capture and preserve artwork, awards, certificates, etc. in a digital format. • Choose the best-quality image available for scanning • Not all images will scan well – they may be too dark, too faded, or lack color definition. • A scanned image can be improved using digital software tools. Chapter 8

8. Scanner Basics • There are hundreds of different scanner models and each works a little differently. • There are, however, three basic steps to scanning: • Position the image. • Preview, adjust, and scan the image. • Save the image in an appropriate file format. Chapter 8

9. Position the IMage • Portrait Orientation • Landscape Orientation • The way an image is positioned is called its orientation. • When the long side of the image is at the top, it is in landscape orientation. • When the short side of the image is at the top, it is in portrait orientation. Chapter 8

10. Preview, Adjust, and Scan the IMage • After an image is scanned, you can preview and adjust it before you save it. • An image scanned at a slant is called skewed. • You can also preview and adjust the type of image that will be saved. Most scanners give the option to scan: • Color images • Grayscale images • Black-and-white documents • When saving, file type and resolution settings can be adjusted. Chapter 8

11. Scan an image with your OS software Windows 7 and Windows Vista provide Windows Live Photo Gallery scanning utility for capturing an image. Chapter 8

12. Using Windows Live Photo Gallery to Improve Images • Windows Live Photo Gallery gives you many different ways to view and manage images. • It is a great tool for adjusting color, contrast, and brightness. • You can review all of the images as a group. • You can view images by categories by choosing the name of the tag for the category. • You can search for images but the date they were taken or establish a ratings scale for photos. Chapter 8

13. Image Options in Photo Gallery • Windows Live Photo Gallery provides several tools for improving your images: • Use Auto adjust to let Windows Live Photo Gallery improve your image automatically. • Use the Adjust exposure feature to control the brightness and contrast of your images. • Use the Adjust color features to change the hue and saturation of your images. • Use the Crop photo feature to cut out any unwanted information from your image and to focus on certain parts of the photo. • Use the Fix redeye feature when the eyes of your subject have turned red in a flash photo. • Use Straighten Photo to exaggerate the angle of an image. Chapter 8

14. Digital Snapshot:Image Exposure and Color • Brightness determines how light or dark pixels are inside an image. • Contrast is the difference between the dark and light pixels in an image. Changing the contrast can change the sharpness of an image. • Hue refers to whether a color is red, green, blue, purple, and so forth. • Saturation refers to the purity of a color or hue. • The tint feature changes the qualities of a hue so it differs slightly from a primary color. • Grayscale substitutes existing colors with gradations of gray. Chapter 8

15. Scanning photos with Grayscale • Grayscalesubstitutes color for 256 gradations of gray, from black (0) to pure white (255). • Grayscalecan turn a color photograph into a black-and-white image or preserve an old-fashioned black-and-white photograph. Chapter 8

16. Lesson 8-2 Capture Images from a Camera to a PC In this Lesson You Will: 1. Learn about the powerful features of today’s digital cameras. 2. Experiment with the settings of a digital camera. 3. Take pictures with a digital camera. 4. Download digital images to a PC from a camera. 5. Analyze picture fi le size and resolution. 6. Manipulate photos using Photo Gallery. Chapter 8

17. Many Marvelous MegaPixels • Megapixels is how digital camera resolution is measured. • LCDs or liquid crystal displays allow you to see the pictures you have taken immediately. • Optical zoom physically adjusts the lenses and will close in on a subject without sacrificing quality. • Digital zoom zooms in on a subject, but image quality is sacrificed if the zoom is too “tight” (close). Chapter 8

18. Many Marvelous MegaPixels (continued) • Digital cameras can store images on memory devices. • The number of picture stored depends upon the size of the memory card and the number of megapixels captured. Chapter 8

19. Get to know your Camera’s Settings • Most digital cameras allow for various quality settings. • Increasing the quality of the image will increase the megapixels. • Increasing megapixels allows more flexibility in the size and resolution of the photo you can print. • High-quality images take up more memory and increase file size. Chapter 8

20. Downloading Images to your PC • There are several ways to import images from a camera to a computer: • The camera can be attached by a cable directly to the computer. • The camera’s memory card can be removed and read by a card reader that is built into or attached to a computer. • The camera may have wireless capabilities. Chapter 8

21. Lesson 8-3 Manipulate Graphics in Documents In this Lesson You Will: 1. Insert, size, and move graphics in a document. 2. Add styles, recolor, and add special effects to your graphics. 3. Reset pictures to original settings, switch images, and experiment with image settings. 4. Create a picture gallery. Chapter 8

22. Manipulating Graphics • Projects are more visually appealing with images, charts, tables, and graphs. • A colorful photo or drawing can catch the reader’s eye and focus an audience on the message. • Graphics can spice up any report, flyer, brochure, invitation, letter, press release, business card, memo, presentation, or media kit. • Microsoft Office allows you to manipulate graphics in most of its applications. Chapter 8

23. Picture it in 3-D • You can apply styles and graphics to images. • Some of the styles apply three-dimensional (3D) effects. • Other styles are less dramatic, but equally effective. Chapter 8

24. Adjusting the Contrast, Brightness, and color Variation • You can use brightness and contrast settings to improve the look of images. • You can change the color of your picture and apply interesting light variations. Chapter 8

25. Reset, Switch out, and Experiment with your Graphics Experimenting with your photos is the best way to learn how the multimedia publishing tools work. Chapter 8