IMAGE TECHNOLOGY

Image Technology – Cont’d

• The storage of documents or other data that includes text, graphics, tables, and pictures is called image technology.

Technologies considered to be image technology

• Optical disk• Micrographics• Facsimile• Scanning• Digital camera

Optical Disks• An electronic image media.• Advantages:High storage capacity and durability.High speed retrieval (random access).High resolution output to monitors.

Optical Disks – cont’d• Disadvantages:ExpensiveLegal admissibility of documents on optical

disks has not been determined.

Types of Optical Disk Storage• Compact Disk – Read-Only Memory (CD-

ROM).• Compact Disk (WORM) - Write-Once/Read

Many times.• Compact Disk rewritable (CD-RW) - Erasable

Optical Disk. • Digital Videodisk or digital versatile disk

(DVD) – A read-only optical storage medium that stores approx. 130 minutes of full-motion video.

Types of Optical Disk Storage – cont’d

• Recordable Disk (DVD-R) – A recordable DVD.• Digital videodisk – rewritable (DVD-RW) – A

rewritable DVD.• Computer output to laser disk (COLD) – A

technique for the transfer of computer-generated output to optical disk so that it can be viewed or printed without using the original programme.

Types of Optical Disk Storage – cont’d

• Optical card – A small electronic device about the size of a credit card.

Integrated Image Systems

• Computer-Assisted Retrieval (CAR)• Computer-Output Microform (COM)• Computer-Input Microform (CIM)• Computer Output to Laser Disk (COLD)• Hybrid Imaging Systems

Image Records Retention

• Microfilm records can be stored for hundreds of years under carefully controlled environment.

• Optical disks have life spans ranging from 10 to 100 years (depending on brand, storage, and use conditions).

Micrographics

• Micrographics technology minimizes information. It refers to the procedures for creating, using and storing micro-records.

Micrographics – cont’d

• Microforms are any forms, either films or paper, containing micro-reproductions of documents for transmission, storage, reading, and printing.

• Microform images are commonly reduced to about one twenty-fifth (1/25) of the original document size.

Types of Microforms

• Roll film

Microfiche

Ultrafiche

Jacket

Aperture Card

Non-standard Microform

Types of Camera

Planetary Camera

Rotary Camera

Microfilm Reader-Printer

Microfiche Reader

Microfiche Reader-Printer

Microform Procedures & Equipment

• Document preparation• Camera film• Image size• Image Orientation• Types of cameras• Auxiliary equipment