User:Proteins/Finding images tutorial

From Wikipedia, the free encyclopedia

Wikipedia articles generally have a high density of images, typically 3-10 per article but sometimes as many as one per major section. Wikipedia's images are usually of high quality and covered by a free license. This tutorial explains how to find good articles to illustrate your article, using "vaccination" as an example.

The preferred source of images for Wikipedia is the Wikimedia Commons, which vets its images to ensure that they don't violate copyright laws. The Commons does not allow "fair-use" images, which are allowed by other Wikimedia projects, including the English Wikipedia. Therefore, your goal should be to find an image for your article on the Commons.

Mayflower search engine[edit]

The Wikimedia toolserver offers an image search engine called Mayflower

whose front page looks like this:

Front page of the Mayflower search engine. the Mayflower logo is at the top, followed by a single-line textbox for the search term, followed by the copyright notice and Wikimedia toolserver logo, followed by a list of links to see the same page in various languages.

For illustration, a search for "vaccination"

yields the following results

Search results for "vaccination" returned by the Mayflower search engine, arranged in rows of six thumbnail images. One image is shown magnified at the far right, the result of hovering the mouse over its thumbnail.

Restricted Google Images search[edit]

Another approach is to search Google Images restricted to the Commons. Here's an example

which will produce something like this:


It's easiest to follow the links that say "commons.wikimedia.org" or "upload.wikimedia.org". You can follow the others, but you'll need to work out the name of the image to find it on the Commons.

Searching the Commons directly[edit]

You can search the Commons directly by following this link

This will take you to a page similar to the following image:

Special search page on the Wikimedia Commons. Three things are indicated: (1) the alternative searches using other search engines such as Mayflower and Google; (2) the ability to restrict the Commons search to specific name spaces; and (3) the search bar itself.

Typically, you will type your search string into the bar, and click on the adjacent button labeled "Advanced search". Prior to clicking, you may restrict the search of the Commons to various "namespaces", as shown above.

Searching by association[edit]

Another approach to find images is by association, that is, to search the categories of related images. For example, to find images for "vaccination", you might begin by searching the categories on the Commons for the images found in related articles, such as public health or polio or smallpox. To arrive at the Commons page for those images, click on the image in the related article, which takes you to its English Wikipedia page. Just below the image, you may see a grey box saying that the image has a counterpart on the Wikimedia Commons.

This image shows part of an image page on the English Wikipedia. The link to the corresponding Wikimedia Commons page is highlighted, as is the link for a full-resolution version of the image.

Click on that link and then click on the Categories at the bottom of the resulting page. You should see a wealth of images in each category, some of which may be appropriate for your article.

This image shows the categories associated with an image of an immune-system cell on the Wikimedia Commons. One such category, "Blood cells", is indicated and a textbox explains that clicking on that category will take the reader to other images of blood cells.

Other search engines[edit]

Other search engines have been developed to search Wikipedia's images. Examples include:

See also[edit]