Digital Images Copyright 2006 SouthWesternThomson Learning Image Resolution
- Slides: 17
Digital Images Copyright 2006 South-Western/Thomson Learning
Image Resolution n Measured in pixels per inch (PPI) for onscreen images Measured in dots per inch (DPI) for print images More dots mean higher resolution Click the mouse or tap the RIGHT ARROW key to continue. Screen 2
Resolution and File Size n n High-resolution images have large file sizes compared to low-resolution images High-resolution images are good for printed items Low-resolution images are usually okay for displaying on screen Low-resolution images load quickly Click the mouse or tap the RIGHT ARROW key to continue. Screen 3
File Formats BMP JPEG GIF TIFF Used by Microsoft Windows and Office programs Supports millions of colors and can be compressed Small and compressed images; popular for Internet High-resolution format commonly used for print documents Click the mouse or tap the RIGHT ARROW key to continue. Screen 4
Scanners n n Capture images in formats such as TIFF, JPEG, or GIF The capture process is called digitizing Flatbed Scanner Click the mouse or tap the RIGHT ARROW key to continue. Screen 5
Digital Cameras n n Capture images electronically without film Resolution is measured in megapixels LCD screen shows image immediately Image quality settings can be adjusted Click the mouse or tap the RIGHT ARROW key to continue. Screen 6
Moving Images to a PC n n n Attach camera to PC with cable Transfer images to PC Save images on a memory card Attach card reader to PC and move images Use the Scanner and Camera Wizard to copy images to PC Click the mouse or tap the RIGHT ARROW key to continue. Screen 7
Review 1. Which file format is commonly used for high-quality printed documents? a. BMP b. GIF c. TIFF Read the question and decide which answer you think is correct. Click the mouse to see the correct answer. Click the mouse or tap the RIGHT ARROW key to continue. Screen 8
Review 1. Which file format is commonly used for high-quality printed documents? TIFF Click the mouse or tap the RIGHT ARROW key to continue. Screen 9
Review 2. DPI (dots per inch) is used to express resolution for a. On-screen images b. Printed images c. Images created with a digital camera and displayed in a slide show Read the question and decide which answer you think is correct. Click the mouse to see the correct answer. Click the mouse or tap the RIGHT ARROW key to continue. Screen 10
Review 2. DPI (dots per inch) is used to express resolution for Printed images Click the mouse or tap the RIGHT ARROW key to continue. Screen 11
Review 3. High-resolution images a. Have large file sizes b. Load quickly to the computer screen c. Do not look good when printed Read the question and decide which answer you think is correct. Click the mouse to see the correct answer. Click the mouse or tap the RIGHT ARROW key to continue. Screen 12
Review 3. High-resolution images Have large file sizes Click the mouse or tap the RIGHT ARROW key to continue. Screen 13
Review 4. A digital camera a. Captures images on film b. Captures images electronically c. Usually creates images in TIFF format Read the question and decide which answer you think is correct. Click the mouse to see the correct answer. Click the mouse or tap the RIGHT ARROW key to continue. Screen 14
Review 4. A digital camera Captures images electronically Click the mouse or tap the RIGHT ARROW key to continue. Screen 15
Review 5. When using a scanner a. You can save captured images in only one format b. Images can be saved in grayscale but not in color c. Images can be cropped to the desired size Read the question and decide which answer you think is correct. Click the mouse to see the correct answer. Click the mouse or tap the RIGHT ARROW key to continue. Screen 16
Review 5. When using a scanner Images can be cropped to the desired size Click the mouse or tap the RIGHT ARROW key to continue. Screen 17
- Digital image 2006
- Oerdigital
- Copyright 2006
- Copyright 2006
- Translate
- Noise
- Fundamentals of image compression
- Image segmentation in digital image processing
- Analog image and digital image
- Fidelity criteria in digital image processing
- Image sharpening in digital image processing
- Image geometry in digital image processing
- False contouring
- Image transform in digital image processing
- Image geometry in digital image processing
- Image restoration in digital image processing
- High resolution low resolution
- Fair use image search