Scanning old photos for prints & DVD

Discussion in 'Photography' started by Cath, Sep 9, 2005.

  1. Cath

    Cath Guest

    I want to scan in my mother's old photos to archive them and have them
    available to the family should they wish to print them out. I also want
    them to be of high enough quality to be able to create a slide show
    movie on DVD. With the large high quality wide screen TVs around now
    and in the future these photos need to be of a high enough quality for
    this project.
    Can someone please tell me the best dpi and format to use for this
    project. I have a HP ScanJet 6300C.
    Thanking you in advance.
    Catherine
     
    Cath, Sep 9, 2005
    #1
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  2. Cath

    DBLEXPOSURE Guest


    For archiving, you will want to scan at the highest PPI possible. Capture
    as much information as you can, i.e. create the largest file possible. You
    never know what you or your descendants, might want to do with the images
    down the road.

    For displaying as a slide show, this will depend on the device doing the
    displaying. for instance, most computer monitors run at 1024X768 and
    72dpi. Doesn't take much of a file to fill that screen. Use Photoshop to
    sample down to say 1000 pixels wide. If you are outputting to a HDTV find
    out what resolution is being displayed when you have your computer driving
    the monitor and then downsize your image to something just under that width.
     
    DBLEXPOSURE, Sep 9, 2005
    #2
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  3. Cath

    Cath Guest

    Thankyou for your quick reply and information. I may not have made
    myself clear in regards to the DVD slideshow. The images will not be
    coming from the computer as such. Using VideoWave I will be placing
    each scanned image into a storyboard, labeled and add music to, to
    create a DVD movie to be then played on a DVD machine to what in the
    future will possibly to HDTVs. I know for archiving and this project I
    should use the highest possible but when does high become too high in
    regards to the quality you can see vs. the size of the image.
    I have scanned in pictures before using tif. Is tif still the best
    format?
     
    Cath, Sep 9, 2005
    #3
  4. Cath

    DBLEXPOSURE Guest

    Yes, tiff is a good format. However, If you are not going to be opening
    and then re-saving the file, the you can use jpg. JPG is problematic when
    opening and re-saving because you are uncompressing and then re compressing.
    each generation of this will add artifacts. jpg should be fine for your
    slide show. tiff is best for printing.

    Not familiar with "VideoWave". And also no familiar enough with DVD's to
    tell you exactly what size is optimum. Intuition is telling me 800 pixels
    wide is gonna be real close, perhaps 1024 for HDTV.
    It all depends on, to what and how large the image will be rendered. When
    archiving an image you do not know what will become of it down the road.
    Lets say your great great grandkids want to make a poster of an image you
    scanned. Well if they only have an 800 pixel image and want to print it at
    300 dpi there gonna end up with a poster that is 2.6 inches wide. So, for
    archiving, capture as much information as possible. For rendering to your
    TV. 800X600 for NTSC and 1024X768 for HDTV, I think...

    I would scan large and then goto adobe's website and download Photoshop
    elements demo and use it to re size your images for your slide shown. You
    might like it enough to buy it. It is affordable and has all the basic
    tools you will need for photo editing..


    http://www.adobe.com/products/photoshopelwin/main.html
     
    DBLEXPOSURE, Sep 9, 2005
    #4
  5. Cath

    Rob Novak Guest

    DVD in NTSC format is 720x480.

    HDTV is a nebulous definition. The highest resolution "standard" is
    the 1080i/p at 1920x1080. However, your entire A/V chain may not
    support that - your plasma screen or LCD panel may only have a native
    1024x768 resolution. A good HDTV authoring source image would fit
    into a 1024x768 box.

    Also, never MPEG encode from print-source images. Always resize to
    the destination resolution and then encode. Otherwise, the
    field-to-field compression will introduce very odd artifacts. Scan at
    max resolution for archiving, then save two resized copies of the
    full-res source, one at 720x480 SDTV, and one at 1024x768 HDTV.
    Encode from those working files for your desired format.
     
    Rob Novak, Sep 9, 2005
    #5
  6. Cath

    Marvin Guest

    You can get all the spatial detail from a photo print by scanning at 250 dpi; that is all
    the resolution of a print on paper. (A negative is a different story.) Getting all the
    intensity range requires care in setting the black and white points. I assume that you
    have the latest software for your scanner; it sould be the same as for my HP 6200C, and it
    helps you in setting those points. Keep those scans on a CD (or better still, duplicate
    CDs in different locations). For the slide show, you can reduce the size of the files to
    the resolution of a HD TV, and your slide show software may do that for you automatically.
    When higher-resolution TV comes some day, a new slide show could be prepared from the
    original files.
     
    Marvin, Sep 9, 2005
    #6
  7. Cath

    Cath Guest

    Thankyou for your suggestions. I looked at the new software and it
    looks like something I could use. The software I am using I have had
    for a while now and I probably should upgrade to something better.
    Regards,
    Catherine
     
    Cath, Sep 10, 2005
    #7
  8. Cath

    Cath Guest

    Thankyou to everyone above for all your suggestions. You have all been
    a great help. Some of my thoughts have been confirmed and you have all
    given me good suggestions to follow through on.
    Thankyou all very much.

    Regards,
    Catherine
     
    Cath, Sep 10, 2005
    #8
  9. Cath

    Guest Guest

    As far as for scanning for archival purposes use the max optical resolution
    for your scanner not the interpolated resolution, the main difference
    between the two is that optical resolution is true resolution while
    interpolated is just resizing to a higher res in your scanner, the quality
    is not as good. Hope this will help you some.

    Randy J. Dittmar
    Alchemy & Apothecary Shoppe
     
    Guest, Sep 11, 2005
    #9
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