Image serialisation for image object persistence,申请号GB19980005723-传众专利搜索

Image serialisation for image object persistence

申请公布号：GB2335514(A)

申请号：GB19980005723

申请日期：1998.03.18

申请公布日期：1999.09.22

申请人：

* INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人：DAVID * CLARK;ANDREW JOHN * SMITH

分类号：G06F9/44;(IPC1-7):G06F9/44

主分类号：G06F9/44

摘要：Java (RTM) development Toolkit version 1.1x (JDK) does not support the serialisation of images, but does allow primitive data types to be serialised, that is, primitive data type objects, including objects comprising primitive data type components, can be written to a file or another area of memory, before an application closes; when the application reopens, the primitive data types can be de-serialised and so recovered. According to this invention, an image object is converted into a primitive data type object and then serialised so that the image object can also be made persistent. In a preferred embodiment, the image object is converted to an array of integers representing the image pixels; a colour table of unique integers is created from the integer array; each integer in the integer array is converted into an index in the colour table; and the combined colour table and array of indices are compressed before serialisation.