![]() ![]() ![]() The California Digital Library Guidelines for Digital Images recommend 150-200 pixels for each dimension.The Denver Public Library Digitization and Cataloguing Program produces thumbnails that are 160 pixels in the long dimension.The use of the word "thumbnail" in the specific context of computer images as 'a small graphical representation, as of a larger graphic, a page layout, etc.' appears to have been first used in the 1980s. The word was then used figuratively, in both noun and adjective form, to refer to anything small or concise, such as a biographical essay. While the earliest use of the word in this sense dates back to the 17th century, the American Heritage Dictionary of Idioms is reported to have documented that the expression first appears in the mid-19th century to refer to 'a drawing the size of the thumbnail'. The word "thumbnail" is a reference to the human thumbnail and alludes to the small size of an image or picture, comparable to the size of the human thumbnail. Arriba Soft Corporation ruled that it was fair use for Internet search engines to use thumbnail images to help web users find what they seek. In 2002, the court in the US case Kelly v. Thumbnail makes for smaller, more easily viewable pages and also allows viewers to have control over exactly what they want to see. However, this may mislead the viewer about what the image contains, so is more suited to artistic presentations than searching or catalogue browsing. For example, when thumbnailing a full-body portrait of a person, it may be better to show the face slightly reduced than an indistinct figure. This results in no saved bandwidth, and the visual quality of browser resizing is usually less than ideal.ĭisplaying a significant part of the picture instead of the full frame can allow the use of a smaller thumbnail while maintaining recognizability. Some web designers produce thumbnails with HTML or client-side scripting that makes the user's browser shrink the picture, rather than use a smaller copy of the image. Thumbnails are ideally implemented on web pages as separate, smaller copies of the original image, in part because one purpose of a thumbnail image on a web page is to reduce bandwidth and download time. ( March 2022) ( Learn how and when to remove this template message) Unsourced material may be challenged and removed. Please help improve this section by adding citations to reliable sources. ![]()
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