Uploading local cover images
Hi, All -- I've searched the manual & list archives, but wasn't able to find an answer to this question. What are best practices for uploading local cover images? I'm thinking specifically of image size and aspect ratio. According to github (https://github.com/Koha-Community/Koha/blob/master/tools/upload-cover-image....): "This script is called and presents the user with an interface allowing him/her to upload a single cover image or bulk cover images via a zip file. Images will be resized into thumbnails of 140x200 pixels and larger images of 800x600 pixels. If the images that are uploaded are larger, they will be resized, maintaining aspect ratio." Is this information still accurate? Our source images are typically several megabytes in size & we don't want to spend time preprocessing if this is unnecessary. Any other tips not covered in the manual? (https://koha-community.org/manual/18.11/en/html/tools.html#upload-local-cove...) Many thanks in advance! Cab Vinton, Director Plaistow Public Library Plaistow, NH
Hi, Cab-- We've found that our installation of Koha needs the image file to have dimensions of 9999 pixels or less on each side. In case it's helpful, here's some info on our workflow: We do preservation scanning since we're a museum collection; in short, we usually scan at 300dpi, full color, .tiff, and then create a .jpg from the .tiff with dimensions of less than 9999 pixels per side for uploading into Koha. We store the .tiffs as digital preservation masters, and they're also handy if we get a request for a high quality version of an image (e.g., for publication). We also contribute .jpg cover images to OpenLibrary.org if they're lacking there. Hope this is helpful! Cheerio, h2 ~~~~~~~~~~~~~~ Heather Hernandez (she, her, hers) Technical Services Librarian San Francisco Maritime National Historical Park Research Center 2 Marina Blvd., Bldg. E, 3rd floor, San Francisco, CA 94123-1284 415-561-7032, heather_hernandez@nps.gov Library catalog: http://keys.bywatersolutions.com/
Many thanks, Heather! 9999 x 9999 pixels is a pretty big image :-) In looking at the covers in our catalog, they seem to be in the 300 x 400 pixel range. We could do some experiments, of course, but it would be great to have more official guidance. Thanks again! Cab Vinton Plaistow Public Library On Fri, Jun 14, 2019 at 1:35 PM Hernandez, Heather <heather_hernandez@nps.gov> wrote:
Hi, Cab--
We've found that our installation of Koha needs the image file to have dimensions of 9999 pixels or less on each side.
In case it's helpful, here's some info on our workflow: We do preservation scanning since we're a museum collection; in short, we usually scan at 300dpi, full color, .tiff, and then create a .jpg from the .tiff with dimensions of less than 9999 pixels per side for uploading into Koha. We store the .tiffs as digital preservation masters, and they're also handy if we get a request for a high quality version of an image (e.g., for publication). We also contribute .jpg cover images to OpenLibrary.org if they're lacking there.
Hope this is helpful! Cheerio, h2 ~~~~~~~~~~~~~~ Heather Hernandez (she, her, hers) Technical Services Librarian San Francisco Maritime National Historical Park Research Center 2 Marina Blvd., Bldg. E, 3rd floor, San Francisco, CA 94123-1284 415-561-7032, heather_hernandez@nps.gov Library catalog: http://keys.bywatersolutions.com/
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Cab Vinton -
Hernandez, Heather