{"id":110,"date":"2011-10-04T17:00:34","date_gmt":"2011-10-04T21:00:34","guid":{"rendered":"http:\/\/blogs.vassar.edu\/digitallibrary\/"},"modified":"2016-05-20T14:18:43","modified_gmt":"2016-05-20T18:18:43","slug":"imaging-specifications","status":"publish","type":"page","link":"https:\/\/pages.vassar.edu\/digitallibrary\/qc-and-standards\/imaging-specifications\/","title":{"rendered":"Imaging Specifications"},"content":{"rendered":"<p><em>In general, the Digital Initiatives Program follows the guidelines specified by <a href=\"http:\/\/www.digitizationguidelines.gov\/\">FADGI,<\/a> the U.S. federal guidelines for digitization.\u00a0 BCR\u2019s<\/em> <a href=\"http:\/\/mwdl.org\/public\/mwdl\/digital-imaging-bp_2.0.pdf\" rel=\"nofollow\">CDP Digital Imaging Best Practices<\/a> <em>is also useful here. \u00a0<\/em><em>Additionally, refer to the University of Illinois&#8217;<\/em> <a href=\"http:\/\/www.library.illinois.edu\/dcc\/bestpractices\/contents.html\" rel=\"nofollow\">Best Practices for Creating Digital Content<\/a> <em>for more information.<\/em><\/p>\n<h3><a name=\"ImagingSpecifications-Photograph\"><\/a>Photograph<\/h3>\n<p>Archival:<\/p>\n<ul>\n<li>File format: TIFF<\/li>\n<li>Bit depth: 48-bit color<\/li>\n<li>Spatial dimensions: 3000-4000px on longest dimension<\/li>\n<li>Resolution: 400ppi-600ppi<\/li>\n<\/ul>\n<p>Service master:<\/p>\n<ul>\n<li>File format: TIFF<\/li>\n<li>Bit depth: 48-bit color<\/li>\n<li>Spatial dimensions: 3000px on longest dimension<\/li>\n<li>Resolution: 400ppi-600ppi<\/li>\n<\/ul>\n<p>Derivatives \/ access copies:<\/p>\n<ul>\n<li>File format: JPG<\/li>\n<li>Bit depth: 8 bit grayscale \/ 24 bit color<\/li>\n<li>Dimensions:\n<ul>\n<li><em><del>Thumbnail: 100px on longest dimension<\/del><\/em><\/li>\n<li><em><del>Small: 300px on longest dimension<\/del><\/em><\/li>\n<li><em><del>Medium: 600px on longest dimension<\/del><\/em><\/li>\n<li>Large: 1200-1500px on longest dimension<\/li>\n<\/ul>\n<\/li>\n<li>Resolution: 100ppi<\/li>\n<\/ul>\n<h3><a name=\"ImagingSpecifications-PrintedText\"><\/a>Printed Text<\/h3>\n<p><em>N.B.: In general, use your discretion \u2013 if a printed text item contains images, color, etc., it is best to treat it as a photograph.\u00a0 We recommend a consultation with the Digital Initiatives Program before beginning any scanning project to determine the best method of capture.<\/em><\/p>\n<p>Archival:<\/p>\n<ul>\n<li>File format: TIFF<\/li>\n<li>Bit depth: <em>bitonal<\/em><\/li>\n<li>Spatial dimensions: 3000-4000px on longest dimension<\/li>\n<li>Resolution: 300ppi (may need to increase if using OCR software)<\/li>\n<\/ul>\n<p>Service master:<\/p>\n<ul>\n<li>Same as archival<\/li>\n<\/ul>\n<p>Derivatives \/ access copies:<\/p>\n<ul>\n<li>File format: JPG<\/li>\n<li>Bit depth: <em>8 bit grayscale \/ 24 bit color<\/em><\/li>\n<li>Dimensions: 1200-1500px on longest dimension<\/li>\n<li>Resolution: <em>300ppi<\/em><\/li>\n<\/ul>\n<p>In some cases, a JPEG2000 can be used as a derivative. Contact the Digital Initiatives Program for more information.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In general, the Digital Initiatives Program follows the guidelines specified by FADGI, the U.S. federal guidelines for digitization.\u00a0 BCR\u2019s CDP Digital Imaging Best Practices is also useful here. \u00a0Additionally, refer to the University of Illinois&#8217; Best Practices for Creating Digital Content for more information. Photograph Archival: File format: TIFF Bit depth: 48-bit color Spatial dimensions: &hellip; <a href=\"https:\/\/pages.vassar.edu\/digitallibrary\/qc-and-standards\/imaging-specifications\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Imaging Specifications<\/span><\/a><\/p>\n","protected":false},"author":938,"featured_media":0,"parent":78,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-110","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pages.vassar.edu\/digitallibrary\/wp-json\/wp\/v2\/pages\/110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pages.vassar.edu\/digitallibrary\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pages.vassar.edu\/digitallibrary\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pages.vassar.edu\/digitallibrary\/wp-json\/wp\/v2\/users\/938"}],"replies":[{"embeddable":true,"href":"https:\/\/pages.vassar.edu\/digitallibrary\/wp-json\/wp\/v2\/comments?post=110"}],"version-history":[{"count":8,"href":"https:\/\/pages.vassar.edu\/digitallibrary\/wp-json\/wp\/v2\/pages\/110\/revisions"}],"predecessor-version":[{"id":563,"href":"https:\/\/pages.vassar.edu\/digitallibrary\/wp-json\/wp\/v2\/pages\/110\/revisions\/563"}],"up":[{"embeddable":true,"href":"https:\/\/pages.vassar.edu\/digitallibrary\/wp-json\/wp\/v2\/pages\/78"}],"wp:attachment":[{"href":"https:\/\/pages.vassar.edu\/digitallibrary\/wp-json\/wp\/v2\/media?parent=110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}