Create images available: introduction
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Warning: The original version of this document is Creating Accessible Images: Introduction . This French translation was done by Ideose as part of an agreement between WebAIM and Ideose .
Note: See page documents on web accessibility for a list of all translated documents. Other resources on web accessibility are also listed in the portal accessible digital .
Summary
- You are on Page 1: Introduction
- Page 2: Images to enhance understanding
- Page 3: Color and contrast
- Page 4: Texts in pictures
- Page 5: The graphs that cause spasms
-
Page 6: Creating good text alternatives (attribute
alt) - Page 7: Long Descriptions
Understanding Accessibility images
Most people know that they must provide a text alternative to images.
This is probably the aspect of web accessibility best known.
This is one of the points on a Web page easier to verify (for example, the image did an alt text or not?).
It is also one of the technical accessibility easier to understand (if the image has no alt text, a blind person can not access the image).
Focus on the alt text has been put to good use and was used to reinforce the concept of accessibility in the minds of many developers.
What many people do not know is that the accessibility of an image requires more than just the alt text.
Some people incorrectly assume that the images are bad for accessibility, as the alt text replaces an image with a text version of this image.
The logical extension of this thinking is that the "text version" would be ideal sites for accessibility.
However, the problem with this logic is that it is only based on the needs of people with one type of disability: blindness.
And what about for people with low vision, color blind people, deaf people, people with physical or cognitive disability?
Important
Why a site "text version" would it ideal for a deaf person? The answer is that it is not. A site "text version" is it ideal for someone with a reading disorder? Far from it. Images are not bad for accessibility. They actually increase the understanding and usability for most audiences.
That is why this document on the charts does not start with the concept of text alternative.
It begins with a discussion on how to use graphics effectively to increase accessibility.
After this discussion, we will examine ways to create alt text.
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