introduction to digital imaging. part 2 - scanning
TRANSCRIPT
Introduction to Digital ImagingIntroduction to Digital Imaging
Part 2 - ScanningPart 2 - Scanning
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
33
Shopping for ScannersShopping for Scanners
• Optical, not Interpolated Resolution 300- 1200dpiOptical, not Interpolated Resolution 300- 1200dpi
• Color Depth 24-36 bitsColor Depth 24-36 bits
• Image Sensor CMOS vs. CCDImage Sensor CMOS vs. CCD
• Scanning SoftwareScanning Software
• Connection - Serial, Parallel, USB, SCSI ($ - $$$)Connection - Serial, Parallel, USB, SCSI ($ - $$$)
• Optical Density Optical Density – commercial 2.8- 3.0commercial 2.8- 3.0
– professional 3.0- 3.4professional 3.0- 3.4
• Color Management -$$$Color Management -$$$– Profiles, CalibrationProfiles, Calibration
• Transparency Adapters, Document feedersTransparency Adapters, Document feeders
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
44
Types of scannersTypes of scanners
• Flatbed, Slide, Drum, handheld, documentFlatbed, Slide, Drum, handheld, document
• Price rangesPrice ranges
• What you getWhat you get
• Using Flatbed scannerUsing Flatbed scanner
• Placing photosPlacing photos
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
55
Scanner softwareScanner software
• ResolutionResolution
• Color depthColor depth
• ScalingScaling
• Color correctionColor correction
• SharpeningSharpening
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
66
ScanningScanning
• PhotosPhotos
• Line ArtLine Art
• Screened ArtScreened Art
• ObjectsObjects
• Text/OCRText/OCR
Part 3 Digital camerasPart 3 Digital cameras
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
88
Basic elementsBasic elements
• LensLens– ViewfinderViewfinder / SLR; Optical / Digital Zoom / SLR; Optical / Digital Zoom
• Image sensorImage sensor– CMOSCMOS/ CCD/ CCD
• Storage mediumStorage medium– RAM, Floppy, Compact Flash, Smart MediaRAM, Floppy, Compact Flash, Smart Media
• Camera featuresCamera features– Exposure/ Focus Lock, LCD, Burst shExposure/ Focus Lock, LCD, Burst shooting/recovery timeooting/recovery time
• Connection to PCConnection to PC– Serial, Parrallel, USB, SCSISerial, Parrallel, USB, SCSI
• Downloading optionsDownloading options– To PC, Printer, VideoTo PC, Printer, Video
• BatteriesBatteries– Nickel Metal Hydride rechargablesNickel Metal Hydride rechargables
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
99
Types of Digital CamerasTypes of Digital Cameras
Image Quality Features Price Use
Basic Low640x 4803 x 5 inch prints
PHD $100-350 Snaps, Web, email
DeluxePoint andShoot
Good1 mega pixel4 x 6 prints
Some control 400-800 Manuals, education,Web
Prosumer Better2 megapixel8 x 10 prints
More control $900-2000 Newsletters,documentation
Professional Best3+ megap’s
Many $3000-50,000
Advertising, news,fashion
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
1010
ComparisonComparison
FilmFilm• Lot of camera for the buckLot of camera for the buck• Film costsFilm costs• Processing CostsProcessing Costs• Battery usage lowBattery usage low• Film AgesFilm Ages• Delay for processingDelay for processing• Can carry lots of filmCan carry lots of film• Fast ShootingFast Shooting
DigitalDigital• Similar camera more Similar camera more
expensiveexpensive• No film to buy, processNo film to buy, process• Higher battery usageHigher battery usage• Can be archived on cdromCan be archived on cdrom• Instant gratificationInstant gratification• Review and deleteReview and delete• Storage/ Download Storage/ Download
challengeschallenges• Slower shootingSlower shooting• Cost of PCCost of PC
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
1111
Storage OptionsStorage Options
• Internal Memory Only - RAM (Basic models)Internal Memory Only - RAM (Basic models)• Floppy Disc Floppy Disc
– Big and slow, but cheap and unlimitedBig and slow, but cheap and unlimited• Removable memory cardsRemovable memory cards
– Compact Flash- Kodak, Compact Flash- Kodak, Nikon, CanonNikon, Canon– Smart Media - Olympus, Fuji, Agfa (smaller, not as high Smart Media - Olympus, Fuji, Agfa (smaller, not as high
capacity)capacity)– Sony Memory StickSony Memory Stick– Iomega Click drives- often an intermediate storageIomega Click drives- often an intermediate storage
• Direct Cable connectionDirect Cable connection (Professional Models) (Professional Models)• File formats JPEG or TIFFile formats JPEG or TIF• ResolutionResolution
– 640 x 480, 1024 x 768, 1280 X 960640 x 480, 1024 x 768, 1280 X 960……
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
1212
Downloading OptionsDownloading Options
• Camera to PC CableCamera to PC Cable
– Serial, USB common, SCSI, Firewire more expensiveSerial, USB common, SCSI, Firewire more expensive
– Serial ~ 1 minute per megabyte; USB 50x fasterSerial ~ 1 minute per megabyte; USB 50x faster
• Storage media to PC viaStorage media to PC via
– PC card adapter for laptopPC card adapter for laptop $20-80 $20-80
– Floppy adapter for SmartMediaFloppy adapter for SmartMedia
– Card reader drive directly attached to PCCard reader drive directly attached to PC
– Click drive transfers from card to click disksClick drive transfers from card to click disks
• Printer, Printer, TV for direct outputTV for direct output
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
1313
Shooting TipsShooting Tips
• LimitationsLimitations– Fine details ie leavesFine details ie leaves
• LightingLighting– Avoid too high contractsAvoid too high contracts
• MovementMovement– Not as good at action photographyNot as good at action photography
• SubjectsSubjects– Large areas of color work better, recognizable objectsLarge areas of color work better, recognizable objects
• CompositionComposition– Closer; Details; Fore/Background; Rule of Thirds, SymmetryCloser; Details; Fore/Background; Rule of Thirds, Symmetry
• Use Fill FlashUse Fill Flash
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
1414
Using ImagesUsing Images
• RotatRotatinging
• StitchingStitching
• CroppingCropping
• RetouchingRetouching
• OrganizingOrganizing
• Output for Web, PrintOutput for Web, Print
Part 4 Working with ImagesPart 4 Working with Images
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
1616
Downloading from the WebDownloading from the Web
• Right clickingRight clicking
• Copy and pasteCopy and paste
• Clip art sitesClip art sites
• Emailing photosEmailing photos
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
1717
Microsoft Clip ArtMicrosoft Clip Art
• Shared by all MS Office ApplicationsShared by all MS Office Applications
• Usually in WMF or EMF formats (vector based)Usually in WMF or EMF formats (vector based)
• Scalable, editableScalable, editable
• Others in BMP or GIF formatOthers in BMP or GIF format
• Bitmaps- Not editableBitmaps- Not editable
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
1818
Stock agenciesStock agencies
• Most are online nowMost are online now
• Royalty free vs. paid artRoyalty free vs. paid art
– unlimitedunlimited vs. vs. one time use one time use
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
1919
Dover booksDover books
• Public domain- royalty freePublic domain- royalty free
• Scan and useScan and use
• Scan as greyscale or black and whiteScan as greyscale or black and white
• Adobe Streamline useful for turning bitmapped scans Adobe Streamline useful for turning bitmapped scans into editable vector art in Illustratorinto editable vector art in Illustrator
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
2020
Film to disk processingFilm to disk processing
• Many film processing services will save your photos Many film processing services will save your photos to a diskto a disk
• UsuallUsually in JPEG formaty in JPEG format
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
2121
Kodak Photo CDsKodak Photo CDs
• High quality scans in variety of resolutionsHigh quality scans in variety of resolutions
• Good for slidesGood for slides
• More expensiveMore expensive
• Two Quality LevelsTwo Quality Levels
• Master: includes 5 different Resolutions of each 35 Master: includes 5 different Resolutions of each 35 mm slide.mm slide.
• Turnaround time: 2 days, cost: $10 for the disc, plus Turnaround time: 2 days, cost: $10 for the disc, plus $2 per scan$2 per scan
• Pro: includes an additional hi-resolution scan Pro: includes an additional hi-resolution scan Turnaround time: 2 days, cost: $18 per disc, plus $20 Turnaround time: 2 days, cost: $18 per disc, plus $20 per scan; less if longer waitper scan; less if longer wait
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
2222
Basic Image EditingBasic Image Editing
• CroppingCropping
• SelectingSelecting
• Copy/PastingCopy/Pasting
• RetouchingRetouching
• ColorizingColorizing
• FiltersFilters
• SharpeningSharpening
• Special EffectsSpecial Effects
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
2323
Stitching softwareStitching software
• Has gotten much cheaper, simplerHas gotten much cheaper, simpler
• Overlap photos by ~ 50%Overlap photos by ~ 50%
• Keep your distanceKeep your distance
• Watch for exposure changesWatch for exposure changes
• Cylindrical vs. Perspective optionsCylindrical vs. Perspective options
Learn iT! Introduction to DigitLearn iT! Introduction to Digital Imagingal Imaging
2424
Special EffectsSpecial Effects
• Kai’s Power GooKai’s Power Goo
• Plug-ins for applicationsPlug-ins for applications
• Kai’s Power ToolsKai’s Power Tools
• Alien Skin SoftwareAlien Skin Software