Image encoder and method for encoding images

摘要

There is provided a method and a device for encoding a digital representation of an image into a single encoded image, comprising: generating at least two subsequent image data sequences each representing a portion of the digital representation of the image, inputting to an encoder (104) each of said subsequent image data sequences as if each image data sequence is an individual digital representations of an image, encoding each subsequent image data sequence into a variable length coded image, thereby generating at least two variable length coded images each representing a portion of the single encoded image, inserting a restart marker as terminating data of at least one of the variable length coded images, inserting an end of image marker as terminating data of one of the variable length coded images representing a final portion of the single encoded image, and associating the variable length coded images with each other by arranging them as subsequent parts of a single encoded data sequence representing the single encoded image.

主权项

1. Method for encoding a digital representation of an image into a single encoded image, comprising:
generating at least two subsequent image data sequences each representing a portion of the digital representation of the image, inputting to an encoder each of said subsequent image data sequences as if each image data sequence is an individual digital representations of an image, encoding each subsequent image data sequence into a variable length coded image, thereby generating at least two variable length coded images each representing a portion of the single encoded image and each including an image file header, inserting a restart marker as terminating data of at least one of the variable length coded images, inserting an end of image marker as terminating data of one of the variable length coded images representing a final portion of the single encoded image, associating the variable length coded images with each other by arranging them as subsequent parts of a single encoded data sequence representing the single encoded image, and modifying at least one image file header of the at least two variable length coded images including identifying the at least one header as a single file header representing the associated variable length coded images forming the single encoded image.