interlace
VerbOpen English WordNet
Verb (2)interlaced, interlacing
- spin, wind, or twist together“intertwine the ribbons”“Twine the threads into a rope”“intertwined hearts”Synonyms: intertwinetwineentwineenlacelaceMore general twist, twineMore specific pleach, wreathe, splice, ravel, wattleSimilar twine
- hold in a locking position“He locked his hands around her neck”Synonyms: lockinterlockMore general hold
What does it mean? Question 1 of today’s quiz
Webster's Dictionary (1913)
Origin: OE. entrelacen, F. entrelacer. See Inter-, and Lace.
To unite, as by lacing together; to insert or interpose one thing within another; to intertwine; to interweave.
Severed into stripes That interlaced each other.— William Cowper
The epic way is everywhere interlaced with dialogue.— John Dryden
Interlacing arches Architecture, arches, usually circular, so constructed that their archivolts intersect and seem to be interlaced.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54
Free On-line Dictionary of Computing
<graphics, file format, algorithm> (Or "interlacing") An aspect of a graphics storage format or transmission algorithm that treats bitmap image data non-sequentially in such a way that later data adds progressively greater resolution to an already full-size image. This contrasts with sequential coding.
Progressive coding is useful when an image is being sent across a slow communications channel, such as the Internet, as the low-resolution image may be sufficient to allow the user to decide not to wait for the rest of the file to be received.
In an interlaced GIF89 image, the pixels in a row are stored sequentially but the rows are stored in interlaced order, e.g. 0, 8, 4, 12, 2, 6, 8, 10, 14, 1, 3, 5, 7, 9, 11, 13, 15. Each vertical scan adds rows in the middle of the gaps left by the previous one.
PNG interlaces both horizontally and vertically using the "Adam7" method, a seven pass process named after Adam M. Costello.
Interlacing is also supported by other formats. JPEG supports a functionally similar concept known as Progressive JPEG. [How does the algorithm differ?]
JBIG uses progressive coding.
See also progressive/sequential coding.
["Progressive Bi-level Image Compression, Revision 4.1", ISO/IEC JTC1/SC2/WG9, CD 11544, 1991-09-16].
(2000-09-12)