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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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Presentation Transcript
shopping for scanners
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

types of scanners
Types of scanners
  • Flatbed, Slide, Drum, handheld, document
  • Price ranges
  • What you get
  • Using Flatbed scanner
  • Placing photos

Learn iT! Introduction to Digital Imaging

scanner software
Scanner software
  • Resolution
  • Color depth
  • Scaling
  • Color correction
  • Sharpening

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scanning
Scanning
  • Photos
  • Line Art
  • Screened Art
  • Objects
  • Text/OCR

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basic elements
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

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types of digital cameras
Types of Digital Cameras

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comparison
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

storage options
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

downloading options
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

shooting tips
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

using images
Using Images
  • Rotating
  • Stitching
  • Cropping
  • Retouching
  • Organizing
  • Output for Web, Print

Learn iT! Introduction to Digital Imaging

downloading from the web
Downloading from the Web
  • Right clicking
  • Copy and paste
  • Clip art sites
  • Emailing photos

Learn iT! Introduction to Digital Imaging

microsoft clip art
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

stock agencies
Stock agencies
  • Most are online now
  • Royalty free vs. paid art
    • unlimited vs. one time use

Learn iT! Introduction to Digital Imaging

dover books
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

film to disk processing
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

kodak photo cds
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

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basic image editing
Basic Image Editing
  • Cropping
  • Selecting
  • Copy/Pasting
  • Retouching
  • Colorizing
  • Filters
  • Sharpening
  • Special Effects

Learn iT! Introduction to Digital Imaging

stitching software
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

special effects
Special Effects
  • Kai’s Power Goo
  • Plug-ins for applications
  • Kai’s Power Tools
  • Alien Skin Software

Learn iT! Introduction to Digital Imaging