Re: Archival colour spaces

From: David Adams (David.Adams@NATLIB.GOVT.NZ)
Date: Sun Dec 16 2001 - 15:05:45 CST

  • Next message: Robin Dale: "December 2001 Issue of RLG DigiNews is Now Available" 

    Message-Id: <200112162107.fBGL7ES13673@sitelicense.arizona.edu>
Date:         Mon, 17 Dec 2001 10:05:45 +1300
From: David Adams <mailto:David.Adams@NATLIB.GOVT.NZ>
Subject:      Re: Archival colour spaces
To: mailto:IMAGELIB@LISTSERV.ARIZONA.EDU

    <pre> This highlights the usefulness and importance of metadata, an appropriate metadata schema should be employed that allows the documentation of the colour profiles (if used). This may be extra work at the time of scanning, but will be good for the long term storage of the digital files. By using a schema even if profiles are not attached to the TIFF files they a e documented elsewhere for each digital file. We havent used a schema in the past but we are now trailing a metadata schema for one project.

    David Adams Team Leader - Copying and Digital Services National Library of New Zealand
    +64 4 4743151 Visit "Papers Past" Online 19th century New Zealand newspapers http://paperspast.natlib.govt.nz Visit "Timeframes" New Zealands leading source of heritage images http://timeframes.natlib.govt.nz

    >>> mailto:swajon@SLNSW.GOV.AU 12/14/01 05:45 >>>
    This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages.

    --=_D18CF918.B9D8B295 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable

    I would like to gather some opinion/feedback about choices and use of = embedded colour profiles in archival digital files. =20 As a rule, are people embedding the colour profile with the tiff archival = master image?

    If so, which colour spaces are being used? Is ProPhoto RGB a favoured = colour space?

    Do people feel there is a real benefit to saving the image data as 16 bit =
    (as opposed to 8 bit) and using a very wide gamut colour space like = ProPhoto RGB?( Most specifications I have seen indicate 8 bit but few = state which colour profile they embed with the files)

    Scott Wajon Photographic Coordinator Image Library State Library of New South Wales Australia

    ****Please note**** This email and any attachments to it are privileged and confidential. If you are not the intended re ipient, please notify the sender and delete it. The contents of this email are not given or endorsed by the State Librar
     of New South Wales unless otherwise indicated by an authorised officer of the Library. Copyright law may also apply to he contents of this email.

    --=_D18CF918.B9D8B295 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Description: HTML

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
    <HTML><HEAD>
    <META http-equiv=3DContent-Type content=3D"text/html; charset=3Diso-8859-1"=
    >
    <META content=3D"MSHTML 5.50.4522.1800" name=3DGENERATOR></HEAD>
    <BODY style=3D"MARGIN-TOP: 2px; FONT: 8pt MS Sans Serif; MARGIN-LEFT: = 2px">
    <DIV><FONT size=3D1>I would like to gather some opinion/feedback about = choices and=20 use of embedded colour profiles in archival digital files.&nbsp; </FONT><FO= NT=20 size=3D1></FONT></DIV>
    <DIV><FONT size=3D1>As a rule, are people embedding the colour profile = with the=20 tiff archival master image?</FONT></DIV>
    <DIV><FONT size=3D1></FONT>&nbsp;</DIV>
    <DIV><FONT size=3D1>If so, which colour spaces are being used?&nbsp; Is = ProPhoto=20 RGB a favoured colour space?</FONT></DIV>
    <DIV><FONT size=3D1></FONT>&nbsp;</DIV>
    <DIV><FONT size=3D1>Do people feel there is a real benefit to saving the = image=20 data as 16 bit (as opposed to 8 bit) and using a very wide gamut colour = space=20 like ProPhoto RGB?( Most specifications I have seen indicate 8 bit but few = state=20 which colour profile they embed with the files)</FONT></DIV>
    <DIV><FONT size=3D1></FONT>&nbsp;</DIV>
    <DIV><FONT size=3D1>Scott Wajon</FONT></DIV>
    <DIV><FONT size=3D1>Photographic Coordinator</FONT></DIV>
    <DIV><FONT size=3D1>Image Library</FONT></DIV>
    <DIV><FONT size=3D1>State Library of New South Wales</FONT></DIV>
    <DIV><FONT size=3D1>Australia</FONT></DIV>
    <DIV><FONT size=3D1></FONT>&nbsp;</DIV>
    <DIV><FONT size=3D1></FONT>&nbsp;</DIV></BODY></HTML>

    --=_D18CF918.B9D8B295--

    </pre>

    This archive was generated by hypermail 2b29 : Sun Dec 16 2001 - 15:12:47 CST