Program to increase the resolution of old photo scans

Discussion in 'Image Processing' started by swandy, Nov 11, 2015.

  1. swandy

    swandy SC Regular

    Nov 16, 2013
    Can anyone suggest a good program for a Mac (or a Lightroom plug-in) for increasing the resolution of old photo scans?

    Years ago I had purchased a scanner to scan my old 35mm slide collection. The problem is that the resolution of the scans is very small by today's standards and I can no longer find the original slides (moved several times over the years) to have the scans redone on a more modern scanner.

    Thanks, Steve
  2. Lawrence A.

    Lawrence A. SC All-Pro

    Nov 8, 2012
    New Mexico
    Real Name:
    Well, you can resample up in Photoshop. I used that method years ago to upsample file from a 3MP camera so I could make a 20x24 inch print of it. It came out well, but I've not had as much luck with other images. I hate it when the original gets lost. It's why I now scan my 35mm film at 4800 ppi at the original file size into a 16 bit Tiff. It's probably overkill, but at least I'm certain to have the information I need to work with.

    With all the technical wizardry out there now there must be something better than upsampling in Photoshop.
  3. ajramirez

    ajramirez SC All-Pro

    Jul 9, 2010
    Caguas, Puerto Rico
    Real Name:
    I have not tried it for scans, but very recently I used Perfect Resize (formerly Genuine Fractals) to upsample some files that ended up being printed at 36" x 48" and 85" x 85" with fantastic results. The Mac version is available in the App Store for about $30.
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  4. bilzmale

    bilzmale Super Moderator Emeritus

    Jul 17, 2010
    Perth, Western Australia
    Real Name:
    Bill Shinnick
    Perfect Resize from ON1 is the industry standard. A free trial may be available HERE.