Hello Keith, Thank you for your input. I have been using a lower case “I” and below was a typo. The same for the “.” In my density parameter.
Thanks, Ben ____________________________ Ben Parkes Digital Library Software Developer Digital Library, Library & University Collections, University of Edinburgh Argyle House, Lady Lawson Street, Edinburgh EH3 9DR Pronouns: He, him, his From: Keith Gilbertson <[email protected]> Date: Tuesday, 6 February 2024 at 19:18 To: Ben Parkes <[email protected]> Cc: [email protected] <[email protected]> Subject: Re: [dspace-community] ImageMagick Thumbnail Quality This email was sent to you by someone outside the University. You should only click on links or attachments if you are certain that the email is genuine and the content is safe. Ben, just thought of two more things: - there's a "." before the 144 in your density line 'org.dspace.app.mediafilter.ImageMagickThumbnailFilter.density =. 144' - there's also a dspace-tech mailing list if you're stuck where you might get better answers On Tue, Feb 6, 2024 at 2:05 PM Keith Gilbertson <[email protected]<mailto:[email protected]>> wrote: Ben, My colleague Philip sent this to me because we're also working on replacing thumbnails. I can't tell from the email text which character you have in the parameter before the handle. We're using a lowercase "eye" - "-i". If you want you can also try without the -p "ImageMagick PDF Thumbnail" just for your test item. --keith On Tue, Feb 6, 2024 at 6:13 AM Ben Parkes <[email protected]<mailto:[email protected]>> wrote: Hello, I have been trying to improve the quality of the thumbnails produced by dspace in one of the repositories I manage. I have been following the documentation for implementing ImageMagick (https://wiki.lyrasis.org/display/DSDOC7x/ImageMagick+Media+Filters) but now that I have it set up I do not see any improvements in the thumbnail quality. I have increased the density to 144 and above, rerun filter-media on a specific test item and then reloaded the page clearing the cache but each time I do not see any changes in the thumbnail quality. I have set the density configuration in dspace.cfg/local.cfg to be: org.dspace.app.mediafilter.ImageMagickThumbnailFilter.density =. 144 Then run the command to refilter the bitstream on my test item: ./dspace filter-media -p 'ImageMagick PDF Thumbnail' -v -f -I 12345/12345 This should force the thumbnail to be regenerated using ImageMagick for the test item, which I believe it is from the command line output, but the quality of the thumbnail does not appear to change regardless of what value I set the density to. Following the documentation above I have also updated the configuration to include all the other detailed changes to conversion utility path, supported file formats, overwriting the existing thumbnails, flattening the pdfs, and icc profiles in case the pdf is formatted to cmyk. I am curious if ImageMagick has a limit to the quality of the thumbnails it can produce or that somehow dspace is not passing the density value correctly? Any advice would be very welcomed. Thank you, Ben ____________________________ Ben Parkes Digital Library Software Developer Digital Library, Library & University Collections, University of Edinburgh Argyle House, Lady Lawson Street, Edinburgh EH3 9DR Pronouns: He, him, his The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. Is e buidheann carthannais a th’ ann an Oilthigh Dhùn Èideann, clàraichte an Alba, àireamh clàraidh SC005336. -- All messages to this mailing list should adhere to the Code of Conduct: https://www.lyrasis.org/about/Pages/Code-of-Conduct.aspx --- You received this message because you are subscribed to the Google Groups "DSpace Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-community/DB9PR05MB76924D0222BC86D85A49D5F7BE462%40DB9PR05MB7692.eurprd05.prod.outlook.com<https://groups.google.com/d/msgid/dspace-community/DB9PR05MB76924D0222BC86D85A49D5F7BE462%40DB9PR05MB7692.eurprd05.prod.outlook.com?utm_medium=email&utm_source=footer>. -- All messages to this mailing list should adhere to the Code of Conduct: https://www.lyrasis.org/about/Pages/Code-of-Conduct.aspx --- You received this message because you are subscribed to the Google Groups "DSpace Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-community/DB9PR05MB76928DFA42B968AE3B1B5921BE4B2%40DB9PR05MB7692.eurprd05.prod.outlook.com.
