{"id":348,"date":"2024-10-12T20:12:01","date_gmt":"2024-10-12T20:12:01","guid":{"rendered":"https:\/\/www.acugis.com\/gis-tutorials\/?page_id=348"},"modified":"2024-10-12T22:13:06","modified_gmt":"2024-10-12T22:13:06","slug":"geoserver-tiffs-geotiffs-and-cogs","status":"publish","type":"page","link":"https:\/\/www.acugis.com\/gis-tutorials\/geoserver\/geoserver-tiffs-geotiffs-and-cogs\/","title":{"rendered":"GeoServer: TIFFs, GeoTIFFs, and COGs"},"content":{"rendered":"\n

TIFF, GeoTIFF, and Cloud Optimized GeoTIFF (COG) are three Raster file specifications.<\/p>\n\n\n\n

At it’s simplest:<\/p>\n\n\n\n

\"\"
<\/td>		A Tiff <\/strong>file contains only an image<\/strong>.<\/td><\/tr>

\"\" <\/td>		A GeoTiff <\/strong>contains both an image <\/strong>and location data.<\/strong><\/td><\/tr>

\"\" <\/td>		A COG <\/strong>is a GeoTIFF<\/strong> that has been modified to serve only those parts of the GeoTIFF required by an HTTP Get request.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

The ability of a COG to serve only those parts of a GeoTIFF requested, and not the entire GeoTIFF, make a COG more efficient and faster than a GeoTIFF.<\/p>\n\n\n\n

A good analogy to distinguish a GeoTIFF from a COG is viewing a movie on DVD versus viewing a movie on a Streaming Service.<\/p>\n\n\n\n

With a DVD, you take delivery of the entire DVD and then proceed to view it. A COG, conversely, only “streams” the bit you are actually watching at this moment.<\/p>\n\n\n\n

A Cloud Optimized GeoTIFF accomplishes this in two way:<\/p>\n\n\n\n

    \n
  1. By storing the image pixels in smaller untis<\/li>\n\n\n\n
  2. By providing only the required units in response to an HTTP Get request.<\/li>\n<\/ol>\n\n\n\n

    You can convert your GeoTIFF to Cloud Optimized GeoTIFF using GDAL<\/a>. <\/p>\n\n\n\n

    Learn more about <\/p>\n","protected":false},"excerpt":{"rendered":"

    TIFF, GeoTIFF, and Cloud Optimized GeoTIFF (COG) are three Raster file specifications. At it’s simplest: A Tiff file contains only an image. A GeoTiff contains both an image and location data. A COG is a GeoTIFF that has been modified to serve only those parts of the GeoTIFF required by an HTTP Get request. The … <\/p>\n

    Continue reading “GeoServer: TIFFs, GeoTIFFs, and COGs”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":48,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-348","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.acugis.com\/gis-tutorials\/wp-json\/wp\/v2\/pages\/348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.acugis.com\/gis-tutorials\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.acugis.com\/gis-tutorials\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.acugis.com\/gis-tutorials\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.acugis.com\/gis-tutorials\/wp-json\/wp\/v2\/comments?post=348"}],"version-history":[{"count":9,"href":"https:\/\/www.acugis.com\/gis-tutorials\/wp-json\/wp\/v2\/pages\/348\/revisions"}],"predecessor-version":[{"id":367,"href":"https:\/\/www.acugis.com\/gis-tutorials\/wp-json\/wp\/v2\/pages\/348\/revisions\/367"}],"up":[{"embeddable":true,"href":"https:\/\/www.acugis.com\/gis-tutorials\/wp-json\/wp\/v2\/pages\/48"}],"wp:attachment":[{"href":"https:\/\/www.acugis.com\/gis-tutorials\/wp-json\/wp\/v2\/media?parent=348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}