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    • Image Evaluation

    IT2 – Image Evaluation

    The Scope of I3A’s Technical Committee IT2 is to develop standards pertaining to instruments and methods for the quantitative evaluation of photographic printing and other imaging systems as manifested in qualities, such as density and resolution, of the resultant images. Quantitative evaluation for response of imaging materials and devices to image-forming agents, such as the sensitivity of photographic film to light.

    Quantification of image-forming agents, such as spectral power distribution of exposure lamps, and conditions for viewing images. This scope specifically excludes the specialized technologies that are exclusive to motion pictures, television, graphic arts, and micrographics.

    I3A/IT2 Technical Committee has five active Subcommittees noted below:

    • IT2-28, Densitometry Chair: David Allen, NIST
    • IT2-31, X-ray Film Image Evaluation Chair: Robert A. Uzenoff, Fujifilm Medical Systems USA, Inc.
    • IT2-36, Image Structure Chair: Efrain Morales, Eastman Kodak Company
    • IT2-39, Light Sources and Lenses
    • IT2-45, Sensitometry of Photographic Films and Papers Chair: Jack Holm, Hewlett-Packard Company

    I3A/IT2 members represent users, governmental agencies, other standards organizations, and companies that manufacture photographic film, paper and plates, as well as other imaging media. Qualified organizations, companies, or individuals willing to actively participate in standards development are encouraged to join I3A/IT2.

    I3A/IT2 meetings are scheduled twice per year. Many members are also USA experts on ISO/TC42 Working Group 3, sponsored by the International Organization for Standardization (ISO).

    How to Join this group
    Contact I3A about IT2

    WG3 – Sensitometry, Image Measurement and Viewing

    WG3 focuses on developing standards pertaining to instruments and methods for the quantitative evaluation of photographic printing and other imaging systems as manifested in qualities such as density and resolution, of the resultant images. The group’s scope includes:

    • Quantitative evaluation for response of imaging materials and devices to image-forming agents, such as the sensitivity of photographic film to light
    • Quantification of image-forming agents, such as spectral power distribution of exposure lamps, and conditions for viewing images

    This scope specifically excludes the specialized technologies that are exclusive to motion pictures, television, graphic arts, and micrographics.

    ISO/TC42/WG3 also typically meets once per year, in conjunction with I3A/IT2. Once every 18 months, TC42 holds a Plenary Meeting at which WG3 holds several working group sessions.

    How to Join this group
    Contact I3A about WG3

    JWG21 – Densitometry

    Revision of the ISO 5 Series, (Joint effort between TC42 and TC130)
    This Joint Working Group was established to prepare revisions to the following standards:

    • ISO 5-1: 1984 (R1994) Photography – Density measurements – Part 1: Terms, symbols and notations
    • ISO 5-2: 2001 Photography – Density measurements – Part 2: Geometric conditions for transmission density
    • ISO 5-3: 1995 Photography – Density measurements – Part 3: Spectral conditions
    • ISO 5-4: 1995 Photography – Density measurements – Part 4: Geometric conditions for reflection density

    How to Join this group
    Contact I3A about JWG21

    JWG24 – Viewing Conditions

    (Joint with ISO/TC130 – Graphic technology) Revision of ISO 3664: 2000 Graphic technology and photography – Viewing conditions

    How to Join this group
    Contact I3A about JWG24