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 Dh?n ?ideann, cl?raichte an Alba, ?ireamh cl?raidh 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-community/DB9PR05MB76924D0222BC86D85A49D5F7BE462%40DB9PR05MB7692.eurprd05.prod.outlook.com.
