Image encoding method and device, image decoding method and device, and processor

An image coding and coding technology, applied in the field of image coding, can solve the problems of large image coding code stream and poor text definition, and achieve the effect of improving efficiency and accuracy, high definition, and effective and fast coding

Pending Publication Date: 2021-02-19
XIAN WANXIANG ELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Embodiments of the present invention provide an image encoding method and device, an image decoding method and device, and a processor, to at least solve the problem of encoding images that are fused with text and pictures in the related art. larger technical issues

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  • Image encoding method and device, image decoding method and device, and processor
  • Image encoding method and device, image decoding method and device, and processor
  • Image encoding method and device, image decoding method and device, and processor

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses an image encoding method and device, an image decoding method and device and a processor. The method comprises the following steps: determining a target macro block including atext in a to-be-coded image; determining the basic color of the text of the target macro block; setting indexes for the basic color and the non-basic color of the target macro block, and generating acolor index map of the target macro block; generating a background image of the to-be-coded image according to the color index map; and respectively encoding the mapping table of the basic colors, the color index map and the background image. The technical problem of poor text definition or large image coding code stream when the images fused by the text and the image is coded in the prior art issolved.

Description

technical field [0001] The present invention relates to the field of image coding, in particular to an image coding method and device, an image decoding method and device, and a processor. Background technique [0002] In image coding, image fusion of text and images is very common. For the encoding of this type of image, one way is to regard it as a common text block for encoding, but because the entire image macroblock has a relatively wide color distribution, the code stream obtained by encoding will be relatively large; another One way is to treat it as a normal picture for encoding, but this encoding method will lead to insufficient clarity of the text in the encoded image. [0003] For the above problems, no effective solution has been proposed yet. Contents of the invention [0004] Embodiments of the present invention provide an image encoding method and device, an image decoding method and device, and a processor, to at least solve the problem of encoding images...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/176H04N19/23
CPCH04N19/176H04N19/23
Inventor 唐春平
Owner XIAN WANXIANG ELECTRONICS TECH CO LTD
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