CN107621929A - A kind of gray scale thermal printing method, thermal printer and readable storage medium storing program for executing - Google Patents
A kind of gray scale thermal printing method, thermal printer and readable storage medium storing program for executing Download PDFInfo
- Publication number
- CN107621929A CN107621929A CN201710819425.9A CN201710819425A CN107621929A CN 107621929 A CN107621929 A CN 107621929A CN 201710819425 A CN201710819425 A CN 201710819425A CN 107621929 A CN107621929 A CN 107621929A
- Authority
- CN
- China
- Prior art keywords
- pixel
- printing
- current pixel
- bitmap
- difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000007651 thermal printing Methods 0.000 title claims abstract description 26
- 238000007639 printing Methods 0.000 claims abstract description 50
- 238000004590 computer program Methods 0.000 claims description 14
- 238000009825 accumulation Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005755 formation reaction Methods 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004549 pulsed laser deposition Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Color Image Communication Systems (AREA)
- Electronic Switches (AREA)
Abstract
The present invention provides a kind of gray scale thermal printing method, thermal printer and readable storage medium storing program for executing, and Method of printing includes bitmap processing step, dot chart switch process and printing step；Bitmap processing step includes：Receive original bitmap；Obtain the pixel of original bitmap；Generate the array of pixels on original bitmap；Take out the RBG values of current pixel and generate the index of current pixel；The RBG value elements of the neighboring pixel of current pixel are handled according to the RBG values of current pixel, the index of current pixel and processing coefficient；Preserve the RBG values of neighboring pixel；Dot chart switch process is that new bitmap is generated into dot chart；Printing step is to carry out thermal printing according to dot chart.By the index for generating black and white, and be added to default processing coefficient in the pixel on periphery, dot chart is then generated according to the new bitmap after processing, finally completes gray level printing, it can be seen that by handling Color Bitmap, the gray level printing that pattern is realized using thermal printing can be then realized.
Description
Technical field
The present invention relates to thermal printing field, more particularly to a kind of gray scale thermal printing method, thermal printer and one kind
Computer-readable recording medium.
Background technology
Thermal printer is equipped with the Automatic Teller Machine of bank, the cashier of supermarket and electric business delivery, is handed over for printing
Easy strip, receipt or express delivery list.It is limited to thermal printing principle, general shorthand on thermal printing receipt, passes through stain
Word is cooperatively formed with white point, is hardly formed image, it is for Grey imaging just more difficult, it is various with printing content
Change, except on receipt formed transaction record word in addition to, the printing of pattern in addition to improving aesthetics, using gray level printing its more
Can vivo print image, Color Bitmap is realized by Grey imaging by thermal printing however, cannot realize in the prior art.
The content of the invention
The first object of the present invention provides a kind of gray scale thermal printing method for realizing gray level printing.
The second object of the present invention provides a kind of thermal printer for realizing gray level printing.
The third object of the present invention provides a kind of computer-readable recording medium for realizing gray level printing.
In order to realize an object of the present disclosure, the present invention provides a kind of gray scale thermal printing method, it is characterised in that including
Bitmap processing step, dot chart switch process and printing step；
Bitmap processing step includes：
Receive original bitmap；
Obtain the pixel of original bitmap；
Generate the array of pixels on original bitmap；
Judgment step, judge whether that whole processes pixels finish；
If not, tinting step is carried out to pixel；
In this way, then new bitmap is generated,
Tinting step includes：
Take out the RBG values of current pixel and generate the index of current pixel；
RBG values element according to the RBG values of current pixel, the index of current pixel and processing coefficient to the neighboring pixel of current pixel
Handled；
Preserve the RBG values of neighboring pixel；
Return to judgment step,
Dot chart switch process is：New bitmap is generated into dot chart；
Printing step is：Thermal printing is carried out according to dot chart.
Further scheme is to take out the RBG values of current pixel and include the step of generating the index of current pixel：
The RBG values of current pixel and complete white RBG values are asked poor, and generate white difference；
The RBG values of current pixel and completely black RBG values are asked poor, and generate black difference；
When the absolute value of white difference is less than the absolute value of black difference, then the index for setting current pixel is complete white；
When the absolute value of black difference is less than the absolute value of white difference, then the index for setting current pixel is completely black.
Further scheme is that array of pixels is one-dimension array.
Further scheme is that processing coefficient is more than 0 and less than 1.
The step of further scheme is, new bitmap is generated into dot chart includes：
The RBG values of pixel and complete white RBG values are asked poor, and generate white difference；
The RBG values of pixel and completely black RBG values are asked poor, and generate black difference；
When the absolute value of white difference is less than the absolute value of black difference, then the point corresponded to pixel in dot chart is arranged to white point；
When the absolute value of black difference is less than the absolute value of white difference, then the point corresponded to pixel in dot chart is arranged to stain.
Further scheme is, according to the RBG values of current pixel, the index of current pixel and processing coefficient to current picture
The step of RBG value elements of the neighboring pixel of element are handled includes：
RGB differences are generated, RGB differences are the RBG values and the difference of the index of current pixel of current pixel；
By in the rgb value of the product accumulation of RGB differences and processing coefficient to neighboring pixel.
Further scheme is that neighboring pixel includes first, the right pixel, second right based on current pixel
Pixel, the pixel of lower section first, lower section second pixel, the pixel of lower left first and the pixel of lower right first.
In order to realize the second purpose of the invention, the present invention provides a kind of thermal printer, it is characterised in that thermal printer
Realized including processor, when processor is used to perform the computer program stored in memory as any one is beaten in above-mentioned scheme
The step of impression method.
In order to realize the 3rd purpose of the invention, the present invention provides a kind of computer-readable recording medium, is stored thereon with meter
Calculation machine program, it is characterised in that：Realized when computer program is executed by processor such as any one Method of printing in above-mentioned scheme
The step of.
From such scheme, dot chart is then formed on printing paper by the heating of dot matrix during due to thermal printing
Case, therefore each corresponding print point only has two states, i.e. white point or stain, for each print point, being can not reality
Gray level printing, but because the formation of pattern is overall, observation of the people for intensive print point is vision deviation be present, therefore
After handling Color Bitmap, it can go out what is be made up of the black-white point system of battle formations by thermal printing, visually form gray scale difference
Pattern and word, specifically, be added to by generating the index of black and white, and with default processing coefficient in the pixel on periphery,
New bitmap is preserved after being disposed, dot chart is then generated according to the new bitmap after processing, finally completes gray level printing, it is seen that
By handling Color Bitmap, the gray level printing that pattern is realized using thermal printing can be then realized.
Brief description of the drawings
Fig. 1 is the realization principle figure of gray scale thermal printing method embodiment of the present invention.
Fig. 2 is the flow chart of gray scale thermal printing method embodiment of the present invention.
Fig. 3 is the flow chart of gray scale thermal printing method embodiment Bitmap processing step of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
The principle of gray level image is formed to thermal printing first, in the prior art, if be directly changed into Color Bitmap
Dot chart, during conversion, then judge each pixel be proximate to it is complete it is white be also proximate to completely black, dot matrix is at will changed into according to this principle
Pattern, if occurring the pattern of gradual change type color in Color Bitmap, because pixel value is close, therefore may be wholly converted into by figure
It is completely black or complete white, the progressive formation of color can not be embodied well, or even can not showing the clear patterns of script.
It should be noted simultaneously that the gray level printing described in this case does not refer to realize that different gray scales are beaten in a pixel
Print, the gray level printing that this case is formed using the visual effect by human eye, reference picture 1,6 9*9 point is contained in Fig. 1
The display segment of resolution, each lattice can correspond to each pixel of bitmap, or each point of corresponding dot chart, in fig 1 a,
There is no grid to insert black, this, which represents the display segment and is in full game of shuttlecocks, stamps.In Figure 1b, there are equally distributed 9 grids
Black is inserted, this represents the display segment and is in the gray level printing of first level.In figure 1 c, there are equally distributed 25 sides
Lattice insert black, and this represents the display segment and is in the gray level printing of second level.In Fig. 1 d, there are equally distributed 27
Grid inserts black, and this represents the display segment and is in the gray level printing of third level.In Fig. 1 e, there is equally distributed 41
Individual grid inserts black, and this represents the display segment and is in the gray level printing of fourth level.In Fig. 1 f, whole grids are inserted
Black, this represents the display segment and is in completely black printing.
Certainly, the printing situation of a certain small region of the explanation that Fig. 1 is used only on printing paper, certainly, in temperature-sensitive
The printing dot density of printer reach 300-600 often row when, using stain density distribution and white point density be distributed, people's
The change of gray scale can be visually formed, then realizes gray level printing.
Illustrate below in order to realize this more sparse point distribution and more intensive point distribution are how to realize
Conversion.
Reference picture 2, gray scale thermal printing method include input bitmap S1, bitmap processing step S2, dot chart switch process
S3 and printing step S4, reference picture 3, dot chart switch process S2 include：
Step S21, receives original bitmap, and the original bitmap can make the bitmap of colour, or black and white have the bitmap of GTG；
Step S22, the pixel of the original bitmap is obtained,
Step S23, array of pixels is generated according to the pixel of the original bitmap, specifically, array of pixels is one-dimension array, each picture
Element is Pi[R, G, B], i=row*width+col, i are the index position of array, wherein, row is row, and width is the width of row
Degree, col are row.
Step S24, judgment step is performed, judges whether that whole processes pixels finish,.
If not, tinting step is carried out to pixel.
Tinting step includes：
Step S25, take out the RBG values of current pixel and generate the index of current pixel, specifically include：
By the RBG values P of current pixeli[R, G, B] and complete white RBG values [255,255,255] ask poor, and generate white difference；
By the RBG values P of current pixeli[R, G, B] and completely black RBG values [0,0,0] ask poor, and generate black difference；
When the absolute value of white difference is less than the absolute value of black difference, then set the index of current pixel for it is complete white [255,255,
255]；
When the absolute value of black difference is less than the absolute value of white difference, then the index for setting current pixel is completely black [0,0,0].
Judge current pixel RBG values be proximate to it is complete white or completely black, close to it is complete it is white index is then arranged to complete white, lean on
It is near completely black, it is arranged to completely black.
Step S26, the periphery according to the RBG values of current pixel, the index of current pixel and processing coefficient to current pixel
The RBG value elements of pixel are handled, and the step specifically includes：
RGB differences are generated, RGB differences are the RBG values and the difference of the index of current pixel of current pixel, i.e., [R1, G1, B1] etc.
In Pi[R, G, B] is subtracted [255,255,255], or [R1, G1, B1] is equal to Pi[R, G, B] is subtracted [0,0,0]；
By RGB differences [R1, G1, B1] and processing coefficient K product accumulation into the rgb value of neighboring pixel.Preferably, processing system
Number K is Changshu more than 0 and less than 1, and it depth demand can be adjusted according to user, with further preferred, processing
COEFFICIENT K value is 0.25-0.5.
And neighboring pixel includes first, the right pixel based on current pixel, second right pixel, lower section first
Pixel, lower section second pixel, the pixel of lower left first and the pixel of lower right first.
Step S27, preserve pixel RGB values new after updating.
Step S24 is then returned to, judges whether that whole processes pixels finish, if not, continuing pair according to above-mentioned step
Subsequent point pixel is handled, and the order specifically handled can be according to from left to right, from top to bottom, i.e., the upper left corner is a bit
Start to process at first, a little finally handling for the lower right corner, installs above-mentioned order and is handled successively.
It is disposed when all, then performs step S28, preserve and generate new bitmap.
Step S3 is performed, the step of new bitmap is generated into dot chart, it includes the RBG values of pixel and RBG values in vain entirely
Ask poor, and generate white difference；
The RBG values of pixel and completely black RBG values are asked poor, and generate black difference；
When the absolute value of white difference is less than the absolute value of black difference, then the point corresponded to pixel in dot chart is arranged to white point；
When the absolute value of black difference is less than the absolute value of white difference, then the point corresponded to pixel in dot chart is arranged to stain.
Step S4 is finally performed, thermal printer thermographic on printing paper according to dot chart, utilizes different dot densities
Printing, then realize gray level printing.
Thermal printer embodiment：
Thermal printer includes processor, and processor realizes side as described above when being used to perform the computer program stored in memory
In case the step of any one Method of printing.
Computer-readable recording medium embodiment：
Computer program is stored with computer-readable recording medium, side as described above is realized when computer program is executed by processor
In case the step of any one Method of printing.
It should be noted that the computer of this case can be desktop PC, notebook, palm PC and cloud service
The computing devices such as device, computer also may include, but be not limited only to, processor, memory.
Alleged processor can be CPU (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other PLDs, discrete gate or transistor logic device
Part, discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processing
Device etc., the processor are the control centres of the multi-turn absolute value encoder and drive device, utilize various interfaces and circuit
Connect whole multi-turn absolute value encoder, the various pieces of drive device.
The memory can be used for storing the computer program and/or module, and the processor is by running or performing
The computer program and/or module being stored in the memory, and the data being stored in memory are called, described in realization
The various functions of multi-turn absolute value encoder and drive device.The memory can mainly include storing program area and data storage
Area.In addition, memory can include high-speed random access memory, nonvolatile memory can also be included, for example, it is hard disk, interior
Deposit, plug-in type hard disk, intelligent memory card（Smart Media Card, SMC）, secure digital（Secure Digital, SD）
Card, flash card（Flash Card）, at least one disk memory, flush memory device or other volatile solid-state parts.
In addition, the computer program includes computer program code, the computer program code can be source code
Form, object identification code form, executable file or some intermediate forms etc..The computer-readable medium can include：Can
Carry any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disc, CD, the computer of the computer program code
Memory, read-only storage（ROM, Read-Only Memory）, random access memory（RAM, Random Access
Memory）, electric carrier signal, telecommunication signal and software distribution medium etc..
From such scheme, dot chart is then formed on printing paper by the heating of dot matrix during due to thermal printing
Case, therefore each corresponding print point only has two states, i.e. white point or stain, for each print point, being can not reality
Gray level printing, but because the formation of pattern is overall, observation of the people for intensive print point is vision deviation be present, therefore
After handling Color Bitmap, it can go out what is be made up of the black-white point system of battle formations by thermal printing, visually form gray scale difference
Pattern and word, specifically, be added to by generating the index of black and white, and with default processing coefficient in the pixel on periphery,
New bitmap is preserved after being disposed, dot chart is then generated according to the new bitmap after processing, finally completes gray level printing, it is seen that
By handling Color Bitmap, the gray level printing that pattern is realized using thermal printing can be then realized.
Claims (9)
1. a kind of gray scale thermal printing method, it is characterised in that including bitmap processing step, dot chart switch process and printing step
Suddenly；
The bitmap processing step includes：
Receive original bitmap；
Obtain the pixel of the original bitmap；
Generate the array of pixels on the original bitmap；
Judgment step, judge whether that whole processes pixels finish；
If not, tinting step is carried out to pixel；
In this way, then new bitmap is generated,
The tinting step includes：
Take out the RBG values of current pixel and generate the index of the current pixel；
Periphery according to the RBG values of the current pixel, the index of the current pixel and processing coefficient to the current pixel
The RBG value elements of pixel are handled；
Preserve the RBG values of the neighboring pixel；
The judgment step is returned,
The dot chart switch process is：The new bitmap is generated into dot chart；
The printing step is：Thermal printing is carried out according to the dot chart.
2. Method of printing according to claim 1, it is characterised in that：
The RBG values for taking out current pixel simultaneously include the step of generate the index of the current pixel：
The RBG values of the current pixel and complete white RBG values are asked poor, and generate white difference；
The RBG values of the current pixel and completely black RBG values are asked poor, and generate black difference；
When the absolute value of the white difference is less than the absolute value of the black difference, then the index for setting the current pixel is complete
In vain；
When the absolute value of the black difference is less than the absolute value of the white difference, then the index for setting the current pixel is complete
It is black.
3. Method of printing according to claim 1, it is characterised in that：
The array of pixels is one-dimension array.
4. Method of printing according to claim 1, it is characterised in that：
The processing coefficient is more than 0 and less than 1.
5. Method of printing according to claim 1, it is characterised in that：
The described the step of new bitmap is generated into dot chart, includes：
The RBG values of pixel and complete white RBG values are asked poor, and generate white difference；
The RBG values of pixel and completely black RBG values are asked poor, and generate black difference；
When the absolute value of the white difference is less than the absolute value of the black difference, then the point corresponded to pixel in dot chart is set
For white point；
When the absolute value of the black difference is less than the absolute value of the white difference, then the point corresponded to pixel in dot chart is set
For stain.
6. according to the Method of printing described in any one of claim 1 to 5, it is characterised in that：
It is described according to the RBG values of the current pixel, the index of the current pixel and processing coefficient to the current pixel
The step of RBG value elements of neighboring pixel are handled includes：
RGB differences are generated, the RGB differences are the RBG values and the difference of the index of the current pixel of the current pixel；
By in the rgb value of the product accumulation of the RGB differences and the processing coefficient to the neighboring pixel.
7. Method of printing according to claim 6, it is characterised in that：
The neighboring pixel includes first, the right pixel based on the current pixel, second right pixel, lower section first
Individual pixel, lower section second pixel, the pixel of lower left first and the pixel of lower right first.
8. a kind of thermal printer, it is characterised in that the thermal printer includes processor, and the processor is deposited for execution
Realized during the computer program stored in reservoir as described in any one in claim 1-7 the step of Method of printing.
9. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that：The computer program quilt
Realized during computing device as described in any one in claim 1-7 the step of Method of printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710819425.9A CN107621929B (en) | 2017-09-12 | 2017-09-12 | Gray scale thermal printing method, thermal printer and readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710819425.9A CN107621929B (en) | 2017-09-12 | 2017-09-12 | Gray scale thermal printing method, thermal printer and readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107621929A true CN107621929A (en) | 2018-01-23 |
| CN107621929B CN107621929B (en) | 2023-07-14 |
Family
ID=61088282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710819425.9A Active CN107621929B (en) | 2017-09-12 | 2017-09-12 | Gray scale thermal printing method, thermal printer and readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107621929B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626078A (en) * | 2019-10-21 | 2019-12-31 | 威海哲文智能科技有限公司 | Thermal printing control method and thermal recording device |
| CN111556596A (en) * | 2020-04-28 | 2020-08-18 | 沈阳工业大学 | Writing device and method supporting private interaction |
| CN112508762A (en) * | 2020-10-20 | 2021-03-16 | 珠海泽冠科技有限公司 | Method for realizing gray scale printing of low-voltage thermal sensitive sheet |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0660586A2 (en) * | 1993-12-27 | 1995-06-28 | Sharp Kabushiki Kaisha | Methods of gradation control and picture quality improvement in thermal printer |
| US6172768B1 (en) * | 1998-02-05 | 2001-01-09 | Canon Kabushiki Kaisha | Halftoning with changeable error diffusion weights |
| JP2005079623A (en) * | 2003-08-28 | 2005-03-24 | Fuji Photo Film Co Ltd | Method, apparatus and program of correcting white balance |
| JP2005153161A (en) * | 2003-11-20 | 2005-06-16 | Alps Electric Co Ltd | Image recording method |
| CN1781722A (en) * | 2004-12-03 | 2006-06-07 | 株式会社Wedg | Image forming method and image forming apparatus |
| US20070086056A1 (en) * | 2005-10-19 | 2007-04-19 | Wen-Hung Hsieh | Method of image processing for heat accumulation of a thermal printer |
| CN1955006A (en) * | 2005-10-26 | 2007-05-02 | 诚研科技股份有限公司 | Thermal accumulative process method for thermal transfer printer |
| JP2009141790A (en) * | 2007-12-07 | 2009-06-25 | Seiko Epson Corp | Image processing program and image processor |
| CN103049904A (en) * | 2012-11-30 | 2013-04-17 | 北京华夏力鸿商品检验有限公司 | Image extraction method and system, and electronic certificate making method and system |
| CN106681673A (en) * | 2016-12-21 | 2017-05-17 | 福建升腾资讯有限公司 | Grayscale printing method of thermosensitive printer |
-
2017
- 2017-09-12 CN CN201710819425.9A patent/CN107621929B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0660586A2 (en) * | 1993-12-27 | 1995-06-28 | Sharp Kabushiki Kaisha | Methods of gradation control and picture quality improvement in thermal printer |
| US5721578A (en) * | 1993-12-27 | 1998-02-24 | Sharp Kabushiki Kaisha | Methods of gradation control and picture quality improvement in a thermal printer which adapts a staggered printing system |
| US6172768B1 (en) * | 1998-02-05 | 2001-01-09 | Canon Kabushiki Kaisha | Halftoning with changeable error diffusion weights |
| JP2005079623A (en) * | 2003-08-28 | 2005-03-24 | Fuji Photo Film Co Ltd | Method, apparatus and program of correcting white balance |
| JP2005153161A (en) * | 2003-11-20 | 2005-06-16 | Alps Electric Co Ltd | Image recording method |
| CN1781722A (en) * | 2004-12-03 | 2006-06-07 | 株式会社Wedg | Image forming method and image forming apparatus |
| US20070086056A1 (en) * | 2005-10-19 | 2007-04-19 | Wen-Hung Hsieh | Method of image processing for heat accumulation of a thermal printer |
| CN1955006A (en) * | 2005-10-26 | 2007-05-02 | 诚研科技股份有限公司 | Thermal accumulative process method for thermal transfer printer |
| JP2009141790A (en) * | 2007-12-07 | 2009-06-25 | Seiko Epson Corp | Image processing program and image processor |
| CN103049904A (en) * | 2012-11-30 | 2013-04-17 | 北京华夏力鸿商品检验有限公司 | Image extraction method and system, and electronic certificate making method and system |
| CN106681673A (en) * | 2016-12-21 | 2017-05-17 | 福建升腾资讯有限公司 | Grayscale printing method of thermosensitive printer |
Non-Patent Citations (1)
| Title |
|---|
| 熊志勇;王江晴;: "基于三分量预测误差差值扩展的可逆数据隐藏" * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626078A (en) * | 2019-10-21 | 2019-12-31 | 威海哲文智能科技有限公司 | Thermal printing control method and thermal recording device |
| CN110626078B (en) * | 2019-10-21 | 2020-09-22 | 威海哲文智能科技有限公司 | Thermal printing control method and thermal recording device |
| CN111556596A (en) * | 2020-04-28 | 2020-08-18 | 沈阳工业大学 | Writing device and method supporting private interaction |
| CN112508762A (en) * | 2020-10-20 | 2021-03-16 | 珠海泽冠科技有限公司 | Method for realizing gray scale printing of low-voltage thermal sensitive sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107621929B (en) | 2023-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4890974B2 (en) | Image processing apparatus and image processing method | |
| CN101098387B (en) | Image processing apparatus and image processing method | |
| CN101770635B (en) | Printer gradation correction method | |
| CN101902550B (en) | Image processing apparatus, image processing method | |
| CN107621929A (en) | A kind of gray scale thermal printing method, thermal printer and readable storage medium storing program for executing | |
| US20100208946A1 (en) | Specifying flesh area on image | |
| US11233921B2 (en) | Image processing apparatus that specifies edge pixel in target image using single-component image data | |
| CN101360176B (en) | Image processing apparatus, image forming apparatus, and image processing method | |
| CN103177279A (en) | Four dimensional (4d) color barcode for high capacity data encoding and decoding | |
| EP1368960A2 (en) | Digital image appearance enhancement and compressibility improvement method and system | |
| CN102216953A (en) | Bit resolution enhancement | |
| JP5029719B2 (en) | Image processing device | |
| CN102842126A (en) | Image processing apparatus and image processing method | |
| CN109285527A (en) | Display device and image processing method thereof | |
| US8094344B2 (en) | Optimum noise filter setting for a scanner in a closed loop system | |
| CN101794377A (en) | The image processing apparatus of the coordinate position of the characteristic portion of detection face | |
| CN103716506A (en) | Image processing device and computer-readable medium | |
| CN105103530B (en) | The bearing calibration of image read-out and image read-out | |
| JP2007151075A (en) | Printer, printing method, image processing apparatus, image processing method, printing program, image processing program, and recording medium | |
| CN103259961A (en) | Image processing apparatus, image processing method, and program | |
| CN101232555A (en) | Image processing method, and image processing apparatus | |
| CN110288663A (en) | Image processing method, image processing device, mobile terminal and storage medium | |
| US9602693B1 (en) | Image processing system and method for removing designated color in an original document | |
| CN112041854B (en) | Method for printing, machine-readable medium and printing device | |
| CN104778019B (en) | Information processing unit and information processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240226 Address after: 519000 Zone G, second floor, No. 1 plant, No. 15, Nanping Pingbei Second Road, Xiangzhou District, Zhuhai City, Guangdong Province Patentee after: Zhuhai Baiyin automation equipment Co.,Ltd. Country or region after: China Address before: Building 5, No. 168 Yile Road, Pingsha Town, Zhuhai City, Guangdong Province, 519000 Patentee before: ZHUHAI SMARNET EQUIPMENT CO.,LTD. Country or region before: China |
|
| TR01 | Transfer of patent right |