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Introduction to Digital Imaging

Introduction to Digital Imaging Part 2 - Scanning Shopping for Scanners Optical, not Interpolated Resolution 300- 1200dpi Color Depth 24-36 bits Image Sensor CMOS vs. CCD Scanning Software Connection - Serial, Parallel, USB, SCSI ($ - $$$) Optical Density commercial 2.8- 3.0

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Introduction to Digital Imaging

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  1. Introduction to Digital Imaging

  2. Part 2 - Scanning

  3. Shopping for Scanners • Optical, not Interpolated Resolution 300- 1200dpi • Color Depth 24-36 bits • Image Sensor CMOS vs. CCD • Scanning Software • Connection - Serial, Parallel, USB, SCSI ($ - $$$) • Optical Density • commercial 2.8- 3.0 • professional 3.0- 3.4 • Color Management -$$$ • Profiles, Calibration • Transparency Adapters, Document feeders Learn iT! Introduction to Digital Imaging

  4. Types of scanners • Flatbed, Slide, Drum, handheld, document • Price ranges • What you get • Using Flatbed scanner • Placing photos Learn iT! Introduction to Digital Imaging

  5. Scanner software • Resolution • Color depth • Scaling • Color correction • Sharpening Learn iT! Introduction to Digital Imaging

  6. Scanning • Photos • Line Art • Screened Art • Objects • Text/OCR Learn iT! Introduction to Digital Imaging

  7. Part 3 Digital cameras

  8. Basic elements • Lens • Viewfinder / SLR; Optical / Digital Zoom • Image sensor • CMOS/ CCD • Storage medium • RAM, Floppy, Compact Flash, Smart Media • Camera features • Exposure/ Focus Lock, LCD, Burst shooting/recovery time • Connection to PC • Serial, Parrallel, USB, SCSI • Downloading options • To PC, Printer, Video • Batteries • Nickel Metal Hydride rechargables Learn iT! Introduction to Digital Imaging

  9. Types of Digital Cameras Learn iT! Introduction to Digital Imaging

  10. Film Lot of camera for the buck Film costs Processing Costs Battery usage low Film Ages Delay for processing Can carry lots of film Fast Shooting Digital Similar camera more expensive No film to buy, process Higher battery usage Can be archived on cdrom Instant gratification Review and delete Storage/ Download challenges Slower shooting Cost of PC Comparison Learn iT! Introduction to Digital Imaging

  11. Storage Options • Internal Memory Only - RAM (Basic models) • Floppy Disc • Big and slow, but cheap and unlimited • Removable memory cards • Compact Flash- Kodak, Nikon, Canon • Smart Media - Olympus, Fuji, Agfa (smaller, not as high capacity) • Sony Memory Stick • Iomega Click drives- often an intermediate storage • Direct Cable connection (Professional Models) • File formats JPEG or TIF • Resolution • 640 x 480, 1024 x 768, 1280 X 960… Learn iT! Introduction to Digital Imaging

  12. Downloading Options • Camera to PC Cable • Serial, USB common, SCSI, Firewire more expensive • Serial ~ 1 minute per megabyte; USB 50x faster • Storage media to PC via • PC card adapter for laptop $20-80 • Floppy adapter for SmartMedia • Card reader drive directly attached to PC • Click drive transfers from card to click disks • Printer, TV for direct output Learn iT! Introduction to Digital Imaging

  13. Shooting Tips • Limitations • Fine details ie leaves • Lighting • Avoid too high contracts • Movement • Not as good at action photography • Subjects • Large areas of color work better, recognizable objects • Composition • Closer; Details; Fore/Background; Rule of Thirds, Symmetry • Use Fill Flash Learn iT! Introduction to Digital Imaging

  14. Using Images • Rotating • Stitching • Cropping • Retouching • Organizing • Output for Web, Print Learn iT! Introduction to Digital Imaging

  15. Part 4 Working with Images

  16. Downloading from the Web • Right clicking • Copy and paste • Clip art sites • Emailing photos Learn iT! Introduction to Digital Imaging

  17. Microsoft Clip Art • Shared by all MS Office Applications • Usually in WMF or EMF formats (vector based) • Scalable, editable • Others in BMP or GIF format • Bitmaps- Not editable Learn iT! Introduction to Digital Imaging

  18. Stock agencies • Most are online now • Royalty free vs. paid art • unlimited vs. one time use Learn iT! Introduction to Digital Imaging

  19. Dover books • Public domain- royalty free • Scan and use • Scan as greyscale or black and white • Adobe Streamline useful for turning bitmapped scans into editable vector art in Illustrator Learn iT! Introduction to Digital Imaging

  20. Film to disk processing • Many film processing services will save your photos to a disk • Usually in JPEG format Learn iT! Introduction to Digital Imaging

  21. Kodak Photo CDs • High quality scans in variety of resolutions • Good for slides • More expensive • Two Quality Levels • Master: includes 5 different Resolutions of each 35 mm slide. • Turnaround time: 2 days, cost: $10 for the disc, plus $2 per scan • Pro: includes an additional hi-resolution scan Turnaround time: 2 days, cost: $18 per disc, plus $20 per scan; less if longer wait Learn iT! Introduction to Digital Imaging

  22. Basic Image Editing • Cropping • Selecting • Copy/Pasting • Retouching • Colorizing • Filters • Sharpening • Special Effects Learn iT! Introduction to Digital Imaging

  23. Stitching software • Has gotten much cheaper, simpler • Overlap photos by ~ 50% • Keep your distance • Watch for exposure changes • Cylindrical vs. Perspective options Learn iT! Introduction to Digital Imaging

  24. Special Effects • Kai’s Power Goo • Plug-ins for applications • Kai’s Power Tools • Alien Skin Software Learn iT! Introduction to Digital Imaging

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