Two-dimensional code and method, terminal, and apparatus for recognizing two-dimensional code
A method, an apparatus, and a terminal for recognizing a two-dimensional code are provided. The two-dimensional code includes an image region and an encoding region. The image region and the encoding region have no overlap. The method includes selecting, from pixels of the two-dimensional code, a pixel included in a code element in an encoding region. The method further includes determining a value of the code element in the encoding region according to the pixel included in the code element in the encoding region. The method further includes recognizing the two-dimensional code according to the value of the code element in the encoding region.
1. A method for recognizing a radially-distributed two-dimensional code, comprising:
selecting, from pixels of the radially-distributed two-dimensional code, a pixel comprised in a code element in an encoding region of the radially-distributed two-dimensional code;
determining a value of the code element in the encoding region according to the pixel comprised in the code element in the encoding region; and
recognizing the radially-distributed two-dimensional code according to the value of the code element in the encoding region, wherein the radially-distributed two-dimensional code comprises at least two strip-shaped regions evenly distributed around a center of the radially-distributed two-dimensional code, the at least two strip-shaped regions formed by aggregation of code elements of the radially-distributed two-dimensional code.
2. The method according to claim 1 , wherein the selecting, from pixels of the radially-distributed two-dimensional code, a pixel comprised in a code element in an encoding region of the radially-distributed two-dimensional code comprises:
dividing the encoding region according to pre-recorded position information, to obtain a region occupied by each code element in the encoding region, the position information being used for indicating a position of each code element in the encoding region; and
selecting, from the pixels of the radially-distributed two-dimensional code, pixels falling into the region occupied by each code element, as pixels comprised in each code element.
3. The method according to claim 1 , wherein the selecting, from pixels of the radially-distributed two-dimensional code, a pixel comprised in a code element in an encoding region of the radially-distributed two-dimensional code comprises:
determining a pixel comprised in each code element by querying a pre-established mapping relationship according to an identifier of each code element in the encoding region, the mapping relationship being a mapping relationship between the identifier of each code element and the pixel comprised in each code element in the radially-distributed two-dimensional code.
4. The method according to claim 1 , wherein one code element in the encoding region comprises at least two pixels.
5. The method according to claim 1 , wherein the radially-distributed two-dimensional code comprises an image region, the image region being located at the center of the radially-distributed two-dimensional code.
6. The method according to claim 1 , wherein the at least two strip-shaped regions comprise a strip-shaped region with a first length and a strip-shaped region with a second length that are distributed in a staggered manner, the first length being greater than the second length.
7. The method according to claim 1 , wherein the at least two strip-shaped regions radially extends from the center to an edge of the radially-distributed two-dimensional code.
8. An apparatus for recognizing a radially-distributed two-dimensional code, comprising: a processor and a memory, the memory storing computer readable instructions, and the computer readable instructions being executed by the processor to perform operations comprising:
selecting, from pixels of the radially-distributed two-dimensional code, a pixel comprised in a code element in an encoding region of the radially-distributed two-dimensional code;
determining a value of the code element in the encoding region according to the pixel comprised in the code element in the encoding region; and
recognizing the radially-distributed two-dimensional code according to the value of the code element in the encoding region, wherein the radially-distributed two-dimensional code comprises at least two radially-distributed strip-shaped regions radially extending from a center region of the radially-distributed two-dimensional code to an edge region of the radially-distributed two-dimensional code, the at least two strip-shaped regions formed by aggregation of code elements of the radially-distributed two-dimensional code.
9. The apparatus according to claim 8 , wherein the selecting, from pixels of the radially-distributed two-dimensional code, a pixel comprised in a code element in an encoding region of the radially-distributed two-dimensional code comprises:
dividing the encoding region according to pre-recorded position information, to obtain a region occupied by each code element in the encoding region, the position information being used for indicating a position of each code element in the encoding region; and
selecting, from the pixels of the radially-distributed two-dimensional code, pixels falling into the region occupied by each code element, as pixels comprised in each code element.
10. The apparatus according to claim 8 , wherein the selecting, from pixels of the radially-distributed two-dimensional code, a pixel comprised in a code element in an encoding region of the radially-distributed two-dimensional code comprises:
determining a pixel comprised in each code element by querying a pre-established mapping relationship according to an identifier of each code element in the encoding region, the mapping relationship being a mapping relationship between the identifier of each code element and the pixel comprised in each code element in the radially-distributed two-dimensional code.
11. The apparatus according to claim 8 , wherein one code element in the encoding region comprises at least two pixels.
12. The apparatus according to claim 8 , wherein the radially-distributed two-dimensional code comprises an image region, the image region being located at the center region of the radially-distributed two-dimensional code.
13. The apparatus according to claim 12 , wherein the at least two strip-shaped regions are evenly distributed.
14. The apparatus according to claim 13 , wherein the at least two strip-shaped regions comprise a strip-shaped region with a first length and a strip-shaped region with a second length that are distributed in a staggered manner, the first length being greater than the second length.
15. A terminal, comprising:
a processor, configured to:
select, from pixels of a radially-distributed two-dimensional code, a pixel comprised in a code element in an encoding region of the radially-distributed two-dimensional code;
determine a pixel comprised in each code element by querying a pre-established mapping relationship according to an identifier of each code element in the encoding region, the mapping relationship being a mapping relationship between the identifier of each code element and the pixel comprised in each code element in the radially-distributed two-dimensional code;
determine a value of the code element in the encoding region according to the pixel comprised in the code element in the encoding region; and recognize the radially-distributed two-dimensional code according to the value of the code element in the encoding region; and
a display device, configured to display an identification result of the radially-distributed two-dimensional code.
16. The terminal according to claim 15 , wherein the processor is further configured to: divide the encoding region according to pre-recorded position information, to obtain an region occupied by each code element in the encoding region, the position information being used for indicating a position of each code element in the encoding region; and select, from the pixels of the radially-distributed two-dimensional code, pixels falling into the region occupied by each code element, as pixels comprised in each code element.
17. The terminal according to claim 15 , wherein one code element in the encoding region comprises at least two pixels.
18. The terminal according to claim 15 , wherein the radially-distributed two-dimensional code comprises an image region, the image region being located at a center of the radially-distributed two-dimensional code.
19. The terminal according to claim 18 , wherein the radially-distributed two-dimensional code comprises at least two strip-shaped regions are evenly distributed around the image region, the at least two strip-shaped regions formed by aggregation of code elements of the radially-distributed two-dimensional code.
20. The terminal according to claim 15 , wherein the radially-distributed two-dimensional code comprises at least two radially-distributed strip-shaped regions extending from a center region of the radially-distributed two-dimensional code to an edge region of the radially-distributed two-dimensional code, the at least two strip-shaped regions formed by aggregation of code elements of the radially-distributed two-dimensional code.