Informative Image Overview Types of informative images include:
- Pictures and other bitmapped graphics - Charts, examples
include: - Bar Charts - Pie Charts - Organizational Charts -
Flow charts - Scatter plots - Mathematical Equations The type of
text equivalent needed for an informative image depends on the
purpose and information the image represents. For example, a
news photograph of a public official is probably just
highlighting or drawing attention to an article or story
associated with the official, and a simple alt text can be used
to fully describe the purpose of the image. A bar chart, on the
other hand, conveys numerical information; the proper text
description of a bar chart is a tabular data table, probably
with some additional summary information, so that speech reader
users can access the numerical relationships and trends visually
represented in the chart. In cases of mathematical equations,
text equivalents should be available as MathML. Text equivalents
for informative images that contain