digitising images ian walker search tech manager media equation
TRANSCRIPT
DIGITISING IMAGES
IAN WALKER
SEARCH TECH MANAGER
MEDIA EQUATION
OVERVIEW
Terminology
Types of Originals
Equipment Used
Resolutions & Image Formats
What’s Next?
DIGITISING IMAGES
TERMINOLOGY
72 dpi V 300 dpi
Mega bytes V Mega Pixels
Optical Zoom V Digital Zoom
DIGITISING IMAGES
DIGITISING IMAGES
72 dpi
DIGITISING IMAGES
300 dpi
72 dpi V 300 dpi
72 dpi 300 dpi
2 meg file 25 meg file
Suitable for Screen display Suitable for A4 printing
Possibly compressed JPEGMost likely uncompressed 150 k bytes TIFF
Can be emailed Not suitable for email
DIGITISING IMAGES
TERMINOLOGY
72 dpi V 300 dpi
Mega bytes V Mega Pixels
Optical Zoom V Digital Zoom
DIGITISING IMAGES
MEGA PIXELS
DIGITISING IMAGES
TERMINOLOGY
72 dpi V 300 dpi
Mega bytes V Mega Pixels
Optical Zoom V Digital Zoom
DIGITISING IMAGES
DIGITAL ZOOM
DIGITISING IMAGES
TYPES OF ORIGINALS
Photographic Prints Proof Sheets
Transparencies Printed Material
Colour negatives Objects
Slides Maps
Glass Plates Engravings
Original Artworks
Newspapers
DIGITISING IMAGES
EQUIPMENTFlatbed Scanner Copy Stand
FbS with Reflective Back Video Camera
Transparency Scanner Digital Camera SLR
Drum Scanner Digital Back
Slide Scanner Digital Camera
S S with Autofeeder
Film Scanner
Wide Format Scanner
DIGITISING IMAGES
FLATBED
DIGITISING IMAGES
FLEXTIGHT
DIGITISING IMAGES
DRUM SCANNER
DIGITISING IMAGES
SLIDE SCANNER
DIGITISING IMAGES
SLIDE FEEDER
DIGITISING IMAGES
FILM SCANNER
DIGITISING IMAGES
LARGE FORMAT
DIGITISING IMAGES
COPY STAND
DIGITISING IMAGES
VIDEO CAMERA
DIGITISING IMAGES
HIGH RES VIDEO
DIGITISING IMAGES
DIGITAL SLR
DIGITISING IMAGES
DIGITAL BACK
DIGITISING IMAGES
DIGITAL CAMERA NON-SLR
DIGITISING IMAGES
OVERVIEW
Terminology
Types of Originals
Equipment Used
Resolutions & Image Formats
What’s Next
DIGITISING IMAGES
75 dpi
DIGITISING IMAGES
150 dpi
DIGITISING IMAGES
300 dpi
DIGITISING IMAGES
600dpi
DIGITISING IMAGES
1,200 dpi
DIGITISING IMAGES
2,400 dpi
DIGITISING IMAGES
4,800 dpi
DIGITISING IMAGES
Size Pixels Megabytes
Screen 17” 1024 x 768 2.36
Postcard 5” x 7” 1500 x 2100 9.45
A4 8” x 11” 2,400 x 3,300 23.76
A3 16” x 22” 4,800 x 6,600 95.04
FILE SIZES
DIGITISING IMAGES
TIFFRGB
TIFFCMYK
JPEGLoss Less
JPEGMod. Com.
Screen 2.4 3.2 600 k 120 k
Postcard 10 13 2.5 meg 1 meg
A4 25 32 5 meg 2 meg
A3 100 133 20 meg 8 meg
FILE TYPES
DIGITISING IMAGES
WHAT’S NEXT?
• Embedded Meta Data in the Image file
• Pict Bridge
• Adobe Photoshop CS2
• XML and Dublin Core
DIGITISING IMAGES