Humanist Discussion Group, Vol. 33, No. 85. Department of Digital Humanities, King's College London Hosted by King's Digital Lab www.dhhumanist.org Submit to: firstname.lastname@example.org Date: 2019-06-12 09:29:09+00:00 From: Dr. Hartmut Krech
Subject: Re: [Humanist] 33.74: how to improve many photos? Hi Amir, While there may be ready-made filters available, the outcome of your processing will depend upon the quality of the original scans you are working on. If the lighting conditions are the same, as in scanning, batch processing will do the trick for you. Please find a brief description of the workflow to follow here: https://learn.zoner.com/the-batch-filter/ Have you considered reproducing your books with a digital camera and a good macro lens? Photographic reproduction will not only be faster, but you may also adjust some variables like light temperature etc. beforehand. With halftone photos from printed books, you would slightly soften the image to eliminate the moiré effect, then increase the overall contrast by adjusting the white and black points, as you don't want to have a photo of the paper surface, but of the information contained in the original photo. A flat gradation curve will retain as many shades of the original as possible. Adjust as neccessary and apply your custom-made batch filter. Don't forget to backup your zero versions first. Best regards, Hartmut Am 09.06.2019 um 07:17 schrieb Humanist: > Humanist Discussion Group, Vol. 33, No. 74. > Department of Digital Humanities, King's College London > Hosted by King's Digital Lab > www.dhhumanist.org > Submit to: email@example.com > > > > > Date: 2019-06-07 06:06:11+00:00 > From: Amir Simantov > Subject: How to improve the quality of photos scanned from old books? > > Hi, > > I am wondering whether I can improve the quality of photos scanned > from old > books. The photos are printed in a poor quality paper, black and white, > please see an example attached. I have many of them and I need them in > order to display on a digital database of my client. Do you know how can I > achieve it? > > I need some tool that will do it automatically, as there are many photos. > Do it by hand with Photoshop one by one is neither cheap nor needed. Even > slight improving will help. > > Thanks a lot! > > Amir _______________________________________________ Unsubscribe at: http://dhhumanist.org/Restricted List posts to: firstname.lastname@example.org List info and archives at at: http://dhhumanist.org Listmember interface at: http://dhhumanist.org/Restricted/ Subscribe at: http://dhhumanist.org/membership_form.php
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