CN103488618A - Text information transmission method and system, and text information display method and system - Google Patents
Text information transmission method and system, and text information display method and system Download PDFInfo
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Abstract
The invention provides a text information transmission method. The text information transmission method includes the steps: acquiring binary dot matrix information of characters and converting the binary dot matrix information into a bitmap; determining coded blocks and coding the same according to preset pixel values of the smallest coded unit and pixels in the bitmap; reading the bitmap according to preset coded order and the smallest coded unit and recording consecutive number of the last coded block when the current coded block read each time is different from the last coded block; packaging serial numbers of length, width, the smallest coded unit, the coded order as well as the coded blocks and the consecutive number prior to inputting. The invention further provides a corresponding text information transmission system, and a text information display method and system, display effect of output end characters can be kept, and data volume of transmission is small.
Description
Technical field
The present invention relates to the text information processing technical field, particularly relate to a kind of text message transfer approach, a kind of text message transfer system, a kind of text message display packing, and a kind of text message display system.
Background technology
Word is exactly a kind of important way of transmission of information since ancient times, and people are accustomed to for a long time to by network, sending Word message now, for example note, microblogging.
Yet, in real application because some restriction can run into some problems.First, we know that word has a variety of fonts, it is that form with character library is kept in local operating system, character library is described with dot matrix or mathematical function curve each word, set up the contact of word to dot matrix or mathematical function curve with coding, generally just transmit the coding of word when we transmit word, receiving end only has and it's time to show and just according to coding, obtain dot array data or mathematical function curve, is then played up demonstration.This just requires the both sides of transmission that identical character library must be arranged simultaneously, but some embedded devices are arranged, and mobile phone for example, because the reasons such as device memory and performance can not comprise a lot of character libraries, this just causes some words that others sends out to show, or can't reach original display effect; In prior art, by being transmitted after picture, but after picture compression, data volume is too large, consumes resources.
Summary of the invention
Based on this, the invention provides a kind of text message transfer approach and text message display packing, can retain the display effect of output terminal word, and the data volume transmitted is less.
A kind of text message transfer approach, comprise the steps:
Obtain the binaryzation lattice information of word, described lattice information is converted to bitmap;
According to the pixel value of pixel in default minimum code unit and described bitmap, determine all encoded block, and described encoded block is numbered;
Read described bitmap by default coded sequence and minimum code unit, read each time current encoded block from encoded block when different, record the read-around ratio of an encoded block;
By output after the numbering of the length and width of described bitmap, coded sequence, minimum code unit, encoded block and read-around ratio packing thereof.
A kind of text message display packing, comprise the steps:
Receive the text message compressed package of input, wherein, the numbering of the length and width that described compressed package comprises bitmap, coded sequence, minimum code unit, encoded block and read-around ratio thereof;
Generate described bitmap according to the length and width of described bitmap, according to described coded sequence, according to numbering and the read-around ratio thereof of encoded block, the default encoded block corresponding with described numbering is filled in described bitmap.
A kind of text message transfer system comprises:
Modular converter, for obtaining the binaryzation lattice information of word, be converted to bitmap by described lattice information;
The numbering module, for the pixel value of the minimum code unit according to default and described bitmap pixel, determine all encoded block, and described encoded block be numbered;
Read module, read described bitmap for the coded sequence by default and minimum code unit, read each time current encoded block from encoded block when different, record the read-around ratio of an encoded block;
Output module, for numbering and the rear output of read-around ratio packing thereof of the length and width by described bitmap, coded sequence, minimum code unit, encoded block.
A kind of text message display system comprises:
Receiver module, for receiving the text message compressed package of input, wherein, the numbering of the length and width that described compressed package comprises bitmap, coded sequence, minimum code unit, encoded block and read-around ratio thereof;
Packing module, generate described bitmap for the length and width according to described bitmap, according to described coded sequence, according to numbering and the read-around ratio thereof of encoded block, the default encoded block corresponding with described numbering is filled in described bitmap.
Above-mentioned text message transfer approach and system, text message display packing and system, by obtaining the binaryzation lattice information of word, the bitmap generated according to the lattice information of binaryzation, can include a plurality of continuous identical pixels of pixel value; When coding, record corresponding encoded block and read-around ratio thereof; Greatly improved compression efficiency; And receiving end is according to the data that receive, according to described coded sequence, according to numbering and the read-around ratio thereof of encoded block, the default encoded block corresponding with described numbering filled and obtained described bitmap, character library support without receiving end, can retain original character display effect.
The accompanying drawing explanation
Fig. 1 is text message transfer approach of the present invention schematic flow sheet in one embodiment.
The lattice information schematic diagram that Fig. 2 is Chinese character in Fig. 1 " good ".
Fig. 3 be take 2*2 as 16 kinds of encoded block schematic diagram corresponding to minimum code unit in Fig. 1.
Fig. 4 is text message display packing of the present invention schematic flow sheet in one embodiment.
Fig. 5 is text message display system of the present invention structural representation in one embodiment.
Fig. 6 is text message display system of the present invention structural representation in one embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
As shown in Figure 1, be the schematic flow sheet of a kind of text message transfer approach of the present invention, comprise the steps:
S11, obtain the binaryzation lattice information of word, described lattice information is converted to bitmap;
According to the word of user's input, extract type matrix according to word content, font type, font size, extract the lattice information of binaryzation from dot matrix word library;
Dot matrix word library is a data file, has preserved the dot array data of all words in this data file the inside, and dot matrix is exactly monochrome bitmap in essence, it means a point with a bit, if bit is 0, mean that certain position does not have a little, 1 means certain position a little if; As shown in Figure 2, be the lattice information schematic diagram of Chinese character in the present embodiment " good "; Wherein the dot matrix font can directly be extracted, and vector fonts extracts after need first putting array again;
Generate data bitmap according to lattice information, data bitmap is the same with lattice information, by a plurality of pixels, formed, equally can be as shown in Figure 2, each pixel storage pixel value, the bitmap generated according to the lattice information of binaryzation, comprised a plurality of pixels, the numerical value of pixel only has two kinds of situations, can be 0 or 1, and have a plurality of continuous identical pixels of pixel value, be conducive to follow-up compression coding.
S12, according to the pixel value of pixel in default minimum code unit and described bitmap, determine all encoded block, and described encoded block be numbered;
In a preferred embodiment, the default minimum code unit of described basis determines that from described bitmap the step of all encoded block is:
Determine 2 according to described default minimum code unit
nMplant the encoded block of storage different pixel values, wherein, described default minimum code unit is the rectangle that N*M pixel forms, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; In described bitmap, the pixel value of each pixel is 0 or 1;
S13, by default coded sequence and minimum code unit, read described bitmap, read each time current encoded block from encoded block when different, record the read-around ratio of an encoded block;
As shown in Figure 2, comprise a plurality of continuous identical pixels of pixel value in bitmap; If take each pixel as minimum code unit, whole 32 of the first row is all 0, so direct representation is (32,0), back to back 4 row full 0s can be with same method representation, and the 6th row can be expressed as (9,0), (2,1), (21,0).Due to the characteristic of word, there will be a large amount of continuous 0 or continuous 1 in data bitmap, so use said method can greatly improve ratio of compression; Wherein, the present embodiment reads bitmap with the behavior coded sequence, also can read bitmap to classify order as according to actual needs, or sequentially be read with Multi-encodings such as Z-shaped coded sequences.
Characteristics according to bitmap, owing to having continuous 0 or continuous 1, and in the horizontal direction with on vertical direction, be exist associated, in order to consider the relevance on horizontal direction and vertical direction simultaneously, in fact larger minimum code unit can be set, to accelerate coding rate and to improve ratio of compression;
For example, it is minimum code unit that 2*2 can be set, and there will be at most 16 kinds of encoded block as shown in Figure 3, and each encoded block is numbered; If read this bitmap with the behavior coded sequence, can find out that front has continuous 36 to be numbered 0 2*2 dot matrix, so direct representation is (36,0), be and then (1,1) successively, (1,2), (14,0), improved ratio of compression greatly.
Above-described embodiment be take a Chinese character and has been set forth cataloged procedure as example, can be also multiple bitmaps by the word corresponding conversion of all inputs, is encoded after splicing all bitmaps again; Perhaps after the splicing of the bitmap of a plurality of words, encode again, specifically can be decided according to the actual requirements.
S14, will the numbering of the length and width of described bitmap, coded sequence, minimum code unit, encoded block and the read-around ratio packing after output;
In a preferred embodiment, the numbering of encoded block and read-around ratio thereof can be stored in a byte as one group, described numbering is stored in the high N*M position of each byte, described read-around ratio is stored in low 8-N*M position, wherein, N*M is less than 8, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; Described default minimum code unit is the rectangle that N*M pixel forms, can there be the multiple choices mode in minimum code unit, as 2*2,2*3,4*4 etc., in the present embodiment, be preferably N*M and be less than 8, prevent that corresponding encoded block number is too much on the one hand, weaken compression speed, also be convenient on the other hand be stored in a byte using the numbering of encoded block and read-around ratio thereof as one group, facilitate the Graphics Processing of data packing storage and receiving end.
Wherein, also can add sign, for recording and identify above-mentioned coded format, for example, front four bytes are 0x54, 0x58, 0x54, 0x50, sign as this coded format, follow four length that byte is bitmap, follow again four width that byte is bitmap, then a byte is coded sequence again, 0 means with the behavior order, 1 means to classify as order, then a byte is minimum code unit again, preserve N for high 4, preserve described M for low 4, the total length that then four bytes are data bitmap after subsequent compression again, be finally the data after compression, packed data be take each byte as one group, the numbering of the encoded block in Fig. 3 is preserved in the high N*M position of this byte, the read-around ratio of low 8-N*M bit representation encoded block.
As shown in Figure 4, be the schematic flow sheet of a kind of text message display packing of the present invention, comprise the steps:
The text message compressed package of S41, reception input, wherein, the numbering of the length and width that described compressed package comprises bitmap, coded sequence, minimum code unit, encoded block and read-around ratio thereof;
S42, according to the length and width of described bitmap, generate described bitmap, according to described coded sequence and minimum code unit, according to numbering and the read-around ratio thereof of encoded block, the default encoded block corresponding with described numbering is filled in described bitmap.
In a preferred embodiment, in described bitmap, the pixel value of each pixel is 0 or 1; Described default minimum code unit is the rectangle that N*M pixel forms, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; Described encoded block has 2
nMkind, store respectively different pixel values, wherein, can there be the multiple choices mode in minimum code unit, as 2*2,2*3,4*4 etc., in the present embodiment, can be preferably N*M and be less than 8, can prevent that corresponding encoded block number is too much, weakens processing speed.
As shown in Figure 5, the invention provides a kind of text message transfer system, comprising:
Modular converter 51, for obtaining the binaryzation lattice information of word, be converted to bitmap by described lattice information;
According to the word of user's input, extract type matrix according to word content, font type, font size, extract the lattice information of binaryzation from dot matrix word library;
Dot matrix word library is a data file, has preserved the dot array data of all words in this data file the inside, and dot matrix is exactly monochrome bitmap in essence, it means a point with a bit, if bit is 0, mean that certain position does not have a little, 1 means certain position a little if;
Generate data bitmap according to lattice information, wherein the dot matrix font can directly be extracted, and vector fonts extracts after need first putting array again; Data bitmap is the same with lattice information, by a plurality of pixels, formed, equally can be as shown in Figure 2, each pixel storage pixel value, the bitmap generated according to the lattice information of binaryzation, comprised a plurality of pixels, the numerical value of pixel only has two kinds of situations, can be 0 or 1, and have a plurality of continuous identical pixels of pixel value, be conducive to follow-up compression coding.
Numbering module 52, for the pixel value of the minimum code unit according to default and described bitmap pixel, determine all encoded block, and described encoded block be numbered;
In a preferred embodiment, described numbering module 52 also can be used for:
Determine 2 according to described default minimum code unit
nMplant the encoded block of storage different pixel values, wherein, described default minimum code unit is the rectangle that N*M pixel forms, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; In described bitmap, the pixel value of each pixel is 0 or 1;
Read module 53, read described bitmap for the coded sequence by default and minimum code unit, read each time current encoded block from encoded block when different, record the read-around ratio of an encoded block;
As shown in Figure 2, comprise a plurality of continuous identical pixels of pixel value in bitmap; If take each pixel as minimum code unit, whole 32 of the first row is all 0, so direct representation is (32,0), back to back 4 row full 0s can be with same method representation, and the 6th row can be expressed as (9,0), (2,1), (21,0).Due to the characteristic of word, there will be a large amount of continuous 0 or continuous 1 in data bitmap, so use said method can greatly improve ratio of compression.
Characteristics according to bitmap, owing to having continuous 0 or continuous 1, and in the horizontal direction with on vertical direction, be exist associated, in order to consider the relevance on horizontal direction and vertical direction simultaneously, in fact larger minimum code unit can be set, to accelerate coding rate and to improve ratio of compression;
For example, it is minimum code unit that 2*2 can be set, and there will be at most 16 kinds of encoded block as shown in Figure 3, and each encoded block is numbered; If read this bitmap with the behavior coded sequence, can find out that front has continuous 36 to be numbered 0 2*2 dot matrix, so direct representation is (36,0), be and then (1,1) successively, (1,2), (14,0), improved ratio of compression greatly.
Output module 54, for numbering and the rear output of read-around ratio packing thereof of the length and width by described bitmap, coded sequence, minimum code unit, encoded block;
In a preferred embodiment, described output module 54 also can be used for:
Using the numbering of encoded block and read-around ratio thereof as one group, be stored in a byte, described numbering is stored in the high N*M position of each byte, and described read-around ratio is stored in low 8-N*M position, wherein, N*M is less than 8, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; Described default minimum code unit is the rectangle that N*M pixel forms, can there be the multiple choices mode in minimum code unit, as 2*2,2*3,4*4 etc., in the present embodiment, be preferably N*M and be less than 8, prevent that corresponding encoded block number is too much on the one hand, weaken compression speed, also be convenient on the other hand be stored in a byte using the numbering of encoded block and read-around ratio thereof as one group, facilitate the Graphics Processing of data packing storage and receiving end.
Wherein, also can add sign, for recording and identify above-mentioned coded format, for example, front four bytes are 0x54, 0x58, 0x54, 0x50, sign as this coded format, follow four length that byte is bitmap, follow again four width that byte is bitmap, then a byte is coded sequence again, 0 means with the behavior order, 1 means to classify as order, then a byte is minimum code unit again, preserve N for high 4, preserve described M for low 4, the total length that then four bytes are data bitmap after subsequent compression again, be finally the data after compression, packed data be take each byte as one group, the numbering of the encoded block in Fig. 3 is preserved in the high N*M position of this byte, the read-around ratio of low 8-N*M bit representation encoded block.
As shown in Figure 6, the present invention also provides a kind of text message display system, comprising:
In a preferred embodiment, in described bitmap, the pixel value of each pixel is 0 or 1; Described default minimum code unit is the rectangle that N*M pixel forms, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; Described encoded block has 2
nMkind, store respectively different pixel values, wherein, can there be the multiple choices mode in minimum code unit, as 2*2,2*3,4*4 etc., in the present embodiment, can be preferably N*M and be less than 8, can prevent that corresponding encoded block number is too much, weakens processing speed.
Text message transfer approach of the present invention and system, text message display packing and system, by obtaining the binaryzation lattice information of word, the bitmap generated according to the lattice information of binaryzation, can include a plurality of continuous identical pixels of pixel value; When coding, record corresponding encoded block and read-around ratio thereof; Greatly improved compression efficiency; And receiving end is according to the data that receive, according to described coded sequence, according to numbering and the read-around ratio thereof of encoded block, the default encoded block corresponding with described numbering filled and obtained described bitmap, character library support without receiving end, can retain original character display effect.
Utilize the present invention, receiving end does not need the support of character library, only need to just can in statu quo show the word of the various different styles of output terminal according to the demonstration of decoding of predetermined form, and this is very useful for embedded device; On the other hand, after word is extracted to the data bitmap that type matrix generates binaryzation, now data will become by many consecutive identical data and form, and can greatly improve compression efficiency; For example, can be applicable in the long microblogging output of Sina's microblogging, existing processing mode is to be picture by all microblogging text conversion, and general picture compression method, compression efficiency is lower, cause picture larger, in the time of transmission, can consume more network traffics, also need more transmission latency simultaneously; And adopting processing mode of the present invention, compression efficiency and transmission speed have greater advantage.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a text message transfer approach, is characterized in that, comprises the steps:
Obtain the binaryzation lattice information of word, described lattice information is converted to bitmap;
According to the pixel value of pixel in default minimum code unit and described bitmap, determine all encoded block, and described encoded block is numbered;
Read described bitmap by default coded sequence and minimum code unit, read each time current encoded block from encoded block when different, record the read-around ratio of an encoded block;
By output after the numbering of the length and width of described bitmap, coded sequence, minimum code unit, encoded block and read-around ratio packing thereof.
2. text message transfer approach according to claim 1, is characterized in that, the default minimum code unit of described basis determines that from described bitmap the step of all encoded block is:
Determine 2 according to described default minimum code unit
nMplant the encoded block of storage different pixel values, wherein, described default minimum code unit is the rectangle that N*M pixel forms, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; In described bitmap, the pixel value of each pixel is 0 or 1.
3. text message transfer approach according to claim 1 and 2, is characterized in that, the described step by output after the numbering of the length and width of described bitmap, coded sequence, minimum code unit, encoded block and read-around ratio encapsulation thereof comprises:
Using the numbering of encoded block and read-around ratio thereof as one group, be stored in a byte, described numbering is stored in the high N*M position of each byte, and described read-around ratio is stored in low 8-N*M position, wherein, N*M is less than 8, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer.
4. a text message display packing, is characterized in that, comprises the steps:
Receive the text message compressed package of input, wherein, the numbering of the length and width that described compressed package comprises bitmap, coded sequence, minimum code unit, encoded block and read-around ratio thereof;
Generate described bitmap according to the length and width of described bitmap, according to described coded sequence and minimum code unit, according to numbering and the read-around ratio thereof of encoded block, the default encoded block corresponding with described numbering is filled in described bitmap.
5. text message display packing according to claim 4 is characterized in that:
In described bitmap, the pixel value of each pixel is 0 or 1; Described default minimum code unit is the rectangle that N*M pixel forms, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; Described encoded block has 2
nMkind, store respectively different pixel values.
6. a text message transfer system, is characterized in that, comprising:
Modular converter, for obtaining the binaryzation lattice information of word, be converted to bitmap by described lattice information;
The numbering module, for the pixel value of the minimum code unit according to default and described bitmap pixel, determine all encoded block, and described encoded block be numbered;
Read module, read described bitmap for the coded sequence by default and minimum code unit, read each time current encoded block from encoded block when different, record the read-around ratio of an encoded block;
Output module, for numbering and the rear output of read-around ratio packing thereof of the length and width by described bitmap, coded sequence, minimum code unit, encoded block.
7. text message transfer system according to claim 6, is characterized in that, described numbering module also for:
Determine 2 according to described default minimum code unit
nMplant the encoded block of storage different pixel values, wherein, described default minimum code unit is the rectangle that N*M pixel forms, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; In described bitmap, the pixel value of each pixel is 0 or 1.
8. according to the described text message transfer system of claim 6 or 7, it is characterized in that, described output module also for:
Using the numbering of encoded block and read-around ratio thereof as one group, be stored in a byte, described numbering is stored in the high N*M position of each byte, and described read-around ratio is stored in low 8-N*M position, and wherein N*M is less than 8.
9. a text message display system, is characterized in that, comprising:
Receiver module, for receiving the text message compressed package of input, wherein, the numbering of the length and width that described compressed package comprises bitmap, coded sequence, minimum code unit, encoded block and read-around ratio thereof;
Packing module, generate described bitmap for the length and width according to described bitmap, according to described coded sequence and minimum code unit, according to numbering and the read-around ratio thereof of encoded block, the default encoded block corresponding with described numbering is filled in described bitmap.
10. text message display system according to claim 9 is characterized in that:
In described bitmap, the pixel value of each pixel is 0 or 1; Described default minimum code unit is the rectangle that N*M pixel forms, and described N is more than or equal to 1 integer, and described M is more than or equal to 1 integer; Described encoded block has 2
nMkind, store respectively different pixel values.
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| CN107147914A (en) * | 2017-06-07 | 2017-09-08 | 广东工业大学 | A kind of embedded system and monochrome bitmap compression method, main frame |
| CN108681527A (en) * | 2018-05-14 | 2018-10-19 | 四川斐讯信息技术有限公司 | A kind of character displaying method and device for intelligent wearable device |
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| US7212313B1 (en) * | 1999-05-25 | 2007-05-01 | Adobe Systems Incorporated | Reducing storage requirements for display data |
| CN101005680A (en) * | 2007-01-19 | 2007-07-25 | 华为技术有限公司 | Method for information transmission and display, electronic device and electronic apparatus |
| US7532221B2 (en) * | 2004-11-02 | 2009-05-12 | Microsoft Corporation | Texture-based packing, such as for packing 16-bit pixels into four bits |
| US7639258B1 (en) * | 2004-03-31 | 2009-12-29 | Adobe Systems Incorporated | Winding order test for digital fonts |
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| US5910805A (en) * | 1996-01-11 | 1999-06-08 | Oclc Online Computer Library Center | Method for displaying bitmap derived text at a display having limited pixel-to-pixel spacing resolution |
| US7212313B1 (en) * | 1999-05-25 | 2007-05-01 | Adobe Systems Incorporated | Reducing storage requirements for display data |
| US7639258B1 (en) * | 2004-03-31 | 2009-12-29 | Adobe Systems Incorporated | Winding order test for digital fonts |
| US7532221B2 (en) * | 2004-11-02 | 2009-05-12 | Microsoft Corporation | Texture-based packing, such as for packing 16-bit pixels into four bits |
| CN101005680A (en) * | 2007-01-19 | 2007-07-25 | 华为技术有限公司 | Method for information transmission and display, electronic device and electronic apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107147914A (en) * | 2017-06-07 | 2017-09-08 | 广东工业大学 | A kind of embedded system and monochrome bitmap compression method, main frame |
| CN108681527A (en) * | 2018-05-14 | 2018-10-19 | 四川斐讯信息技术有限公司 | A kind of character displaying method and device for intelligent wearable device |
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| CN103488618B (en) | 2016-04-27 |
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