A binary image encoding and decoding method and device
A technology of binary image and encoding method, which is applied in the field of image encoding and decoding, and can solve the problems of inconvenience and large storage space.
Active Publication Date: 2020-03-27
HANGZHOU HIKVISION DIGITAL TECH
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Furthermore, the binary image used as a sample is usually stored in a common image format such as BMP. As the number of sample images increases, the number of binary image samples may reach tens of thousands, and tens of thousands of binary image samples It takes up a lot of storage space and is not convenient for users to use
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0090] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0091] figure 1 A schematic flowchart of a binary image coding method provided by an embodiment of the present invention, the method includes:
[0092] S101: Obtain a binary image to be encoded.
[0093] A binary image can be understood as an image containing only black pixels and white pixels. The pixel value of a pixel is related to the number of variable digits of the variable used to represent the pixel value of the pixel set by the developer.
[0094] For e...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
Embodiments of the invention disclose binary image coding and decoding methods and devices and relate to the technical field of image coding and decoding. The coding method comprises steps of obtaining a to-be-coded binary image; obtaining a coding table TL corresponding to a coding length L from a preset coding table database according to the preset coding lengths L; according to a preset pixel point grouping sequence, grouping pixel points included in the to-be-coded binary image; according to the pixel values of the pixel points in each pixel point group after grouping, calculating indexes of corresponding coding elements in the coding table TL of the pixel point group; according to the indexes of the coding elements obtained by calculation, obtaining values of corresponding coding elements in the coding table TL of each pixel point group in the coding table TL; and according to the obtained values of the coding elements, generating coding data corresponding to the to-be-coded binary image. With the scheme provided by the embodiments of the invention, the binary image is coded and then the storage space of the binary image is reduced.
Description
technical field [0001] The present invention relates to the technical field of image encoding and decoding, in particular to a binary image encoding and decoding method and device. Background technique [0002] In recent years, with the rapid development of computer technology, computer vision has been more and more widely used, and commonly used computer vision applications usually involve character recognition technology. In order to improve the accuracy of character recognition, it is usually necessary to use a large number of binary image samples to pair A classifier for character recognition is trained. [0003] Furthermore, the binary image used as a sample is usually stored in a common image format such as BMP. As the number of sample images increases, the number of binary image samples may reach tens of thousands, and tens of thousands of binary image samples The storage space occupied is very large, which is not convenient for users to use. Contents of the invent...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06T9/00
Inventor 蔡巍伟
Owner HANGZHOU HIKVISION DIGITAL TECH