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Term entries in the full glossary matching "image"

W3C Glossaries

Showing results 1 - 11 of 11

background image interference

From User Agent Accessibility Guidelines 1.0 (2002-12-17) | Glossary for this source

The requirement of checkpoint 3.1 to allow the user to turn off rendering of background images does not extend to multi-layered rendering.

delivered image

From Portable Network Graphics (PNG) Specification (Second Edition) (2003-11-10) | Glossary for this source

image constructed from a decoded PNG datastream .

image

From User Agent Accessibility Guidelines 1.0 (2002-12-17) | Glossary for this source

This content type label refers to all of the requirements related to images (excluding animated images) for the following checkpoints: 3.1 and 3.6. When this label is part of a conformance profile, the user agent must implement at least one image format. Furthermore, when this label is part of a profile, the user agent must satisfy these requirements for all implemented image formats, not just those identified in a conformance profile. The image requirements apply to image content that is recognized as distinct and that, according to the encoding format, may be rendered as a coherent unit.

This document uses the term "image" to refer (as is commonly the case) to pictorial content. However, in this document, term image is limited to static (i.e., unmoving) visual information. See also the definition of animation.

image

From Web Content Accessibility Guidelines 1.0 (1999-05-05) | Glossary for this source

A graphical presentation.An image that has been divided into regions with associated actions. Clicking on an active region causes an action to occur.When a user clicks on an active region of a client-side image map, the user agent calculates in which region the click occurred and follows the link associated with that region. Clicking on an active region of a server-side image map causes the coordinates of the click to be sent to a server, which then performs some action.Content developers can make client-side image maps accessible by providing device-independent access to the same links associated with the image map's regions. Client-side image maps allow the user agent to provide immediate feedback as to whether or not the user's pointer is over an active region.

image data

From Portable Network Graphics (PNG) Specification (Second Edition) (2003-11-10) | Glossary for this source

1-dimensional array of scanlines within an image.

image map

From Web Content Accessibility Guidelines 1.0 (1999-05-05) | Glossary for this source

An image that has been divided into regions with associated actions. Clicking on an active region causes an action to occur.When a user clicks on an active region of a client-side image map, the user agent calculates in which region the click occurred and follows the link associated with that region. Clicking on an active region of a server-side image map causes the coordinates of the click to be sent to a server, which then performs some action.Content developers can make client-side image maps accessible by providing device-independent access to the same links associated with the image map's regions. Client-side image maps allow the user agent to provide immediate feedback as to whether or not the user's pointer is over an active region.

interlaced PNG image

From Portable Network Graphics (PNG) Specification (Second Edition) (2003-11-10) | Glossary for this source

sequence of reduced images generated from the PNG image by pass extraction .

PNG image

From Portable Network Graphics (PNG) Specification (Second Edition) (2003-11-10) | Glossary for this source

result of transformations applied by a PNG encoder to a reference image , in preparation for encoding as a PNG datastream , and the result of decoding a PNG datastream.

reduced image

From Portable Network Graphics (PNG) Specification (Second Edition) (2003-11-10) | Glossary for this source

pass of the interlaced PNG image extracted from the PNG image by pass extraction .

reference image

From Portable Network Graphics (PNG) Specification (Second Edition) (2003-11-10) | Glossary for this source

rectangular array of rectangular pixels , each having the same number of samples , either three (red, green, blue) or four (red, green, blue, alpha ). Every reference image can be represented exactly by a PNG datastream and every PNG datastream can be converted into a reference image. Each channel has a sample depth in the range 1 to 16. All samples in the same channel have the same sample depth. Different channels may have different sample depths.

source image

From Portable Network Graphics (PNG) Specification (Second Edition) (2003-11-10) | Glossary for this source

image which is presented to a PNG encoder .

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