Jsummers: Updated link

2015-04-08T01:58:12Z

Updated link

RebeccaRGB: Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics }} The '''WOBA''' format was used inside a HyperCard stack to store black-and-white bitmap images using a form of los..."

2013-02-07T18:42:29Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics }} The '''WOBA''' format was used inside a HyperCard stack to store black-and-white bitmap images using a form of los..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Graphics
}}

The '''WOBA''' format was used inside a [[HyperCard stack]] to store black-and-white bitmap images using a form of lossless compression invented by Bill Atkinson. The format has no formal name; the name WOBA was given to the format by the lead developers of Project 11, an attempt at a HyperCard clone, in the early 2000s. The name WOBA stands for "Wrath of Bill Atkinson" and was inspired by the complexity and non-obviousness of the compression algorithm.

The WOBA format was never used outside of HyperCard, so any instances of a WOBA image by itself were most likely extracted from a HyperCard stack as part of a reverse-engineering effort. An extracted WOBA image usually includes the block header from the HyperCard stack format to make it easily identifiable.

== References ==
* [http://www.kreativekorp.com/swdownload/wildfire/HC%20FILE%20FORMAT%202010.TXT The Definitive Guide to the HyperCard Stack File Format] describes the WOBA format in the section on the BMAP block
* [http://code.google.com/p/powerpaint/ PowerPaint] can read and write WOBA image files

@@ Line 10: / Line 10: @@
 == References ==
 * [http://www.kreativekorp.com/swdownload/wildfire/HC%20FILE%20FORMAT%202010.TXT The Definitive Guide to the HyperCard Stack File Format] describes the WOBA format in the section on the BMAP block
-* [http://code.google.com/p/powerpaint/ PowerPaint] can read and write WOBA image files
+* [https://github.com/kreativekorp/powerpaint PowerPaint] can read and write WOBA image files

WOBA - Revision history

Jsummers: Updated link

RebeccaRGB: Created page with "{{FormatInfo |formattype=electronic |subcat=Graphics }} The '''WOBA''' format was used inside a HyperCard stack to store black-and-white bitmap images using a form of los..."