CN104915976A - Image processing method and system for simulating pencil sketch - Google Patents
Image processing method and system for simulating pencil sketch Download PDFInfo
- Publication number
- CN104915976A CN104915976A CN201510298672.XA CN201510298672A CN104915976A CN 104915976 A CN104915976 A CN 104915976A CN 201510298672 A CN201510298672 A CN 201510298672A CN 104915976 A CN104915976 A CN 104915976A
- Authority
- CN
- China
- Prior art keywords
- histogram
- gray
- obtains
- scale map
- color value
- 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.)
- Pending
Links
Landscapes
- Studio Devices (AREA)
- Image Analysis (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
The invention discloses an image processing method and system for simulating a pencil sketch. The method includes the followings steps that: histogram statistics is performed on the grey-scale image of an image to be processed, and histogram matching is performed according to the result of the histogram statistics, so that a histogram mapping table can be obtained; mapping processing is performed on the grey-scale image according to the histogram mapping table, so that a ground color image can be obtained; edge detection is performed on the grey-scale image, so that an edge image can be obtained; radial fuzzy processing at eight directions is performed on the edge image, so that obtained radial fuzzy images at the eight directions are subjected to superposition processing, so that a line image can be obtained; multiplication processing is performed on the ground color image and the line image, so that a pencil sketch rendering can be obtained. With the image processing method and system for simulating the pencil sketch, the verisimilitude of the pencil sketch rendering can be improved.
Description
Technical field
The present invention relates to technical field of image processing, particularly a kind of simulate pencil sketch image processing method and the system of application the method.
Background technology
Sketch is one pencil, chalk etc. is medium, carrys out the art of represented object or scene with lines, and the basic styling gimmick of pencil sketch comes the body of represented object, structure and space with lines, light and dark color.In prior art, although there is a lot of sketch effect filter to select to be supplied to user, but their great majority carry out processing for the tone of color, do not follow the artistic characteristic that sketch style draws creation, not by the lines effect simulation of pencil drawing out, and mostly operand is comparatively large, Consumer's Experience is poor.
Summary of the invention
The present invention, for solving the problem, provides a kind of image processing method and the system of simulating pencil sketch, processes respectively and organic synthesis, thus can obtain the pencil sketch effect having more the sense of reality from lines and tone two aspect.
For achieving the above object, the technical solution used in the present invention is:
Simulate an image processing method for pencil sketch, it is characterized in that, comprise the following steps:
10. pair pending image carries out gray processing process, obtains gray-scale map;
20. pairs of gray-scale maps carry out statistics with histogram, and carry out Histogram Matching according to statistics with histogram result, obtain Histogram Mapping table;
30. carry out mapping process according to described Histogram Mapping table to described gray-scale map, obtain background color figure;
Gray-scale map described in 40. pairs carries out rim detection, obtains outline map;
Outline map described in 50. pairs carries out the radial blur process in eight directions, and the radial blur figure in eight directions obtained is carried out overlap-add procedure, obtains string diagram;
Background color figure described in 60. couples is multiplied with described string diagram and processes, and obtains pencil sketch effect figure.
Preferably, the computing formula of the gray processing process in described step 10 is:
GRAY＝0.299*RED+0.587*GREEN+0.114*BLUE；
Or
GRAY＝(RED*306+GREEN*601+BLUE*117+512)/1024；
Wherein, RED, GREEN, BLUE are respectively the color value of the red, green, blue passage of each pixel of pending image, and GRAY is the color value of the corresponding pixel points of gray-scale map.
Preferably, in described step 20, statistics with histogram is carried out to gray-scale map, and carry out Histogram Matching according to statistics with histogram result, obtain Histogram Mapping table, further comprising the steps:
Gray-scale map described in 21. pairs carries out statistics with histogram, obtains actual histogram;
22. according to the characteristic of described gray-scale map, obtains the standard histogram preset;
23. according to above-mentioned standard histogram, carries out Histogram Matching to actual histogram, actual histogram is near the mark histogram, and obtains Histogram Mapping table accordingly.
Preferably, also comprise step 24, correction process is carried out to described Histogram Mapping table, limit the mapping gradient of closing on color range of described Histogram Mapping table.
Preferably, in described step 30, according to described Histogram Mapping table, mapping process is carried out to described gray-scale map and obtain background color figure, mainly by the color value of each pixel in described gray-scale map, replace to the new color value corresponding to this color value in described Histogram Mapping table, obtain background color figure.
Preferably, in described step 50, described outline map is carried out to the radial blur process in eight directions, mainly described outline map is carried out radial blur process towards 0 °, 22.5 °, 45 °, 67.5 °, 90 °, 112.5 °, 135 °, 157.5 ° eight directions, obtain eight radial blur figure.
Preferably, in described step 50, the radial blur figure in obtain eight directions is carried out overlap-add procedure and obtains string diagram, further comprising the steps:
Corresponding to radial blur figure eight radial figure in eight directions described in 51. calculating, computing method are as follows:
Lblur(i＝max,p)＝Gray(p)；
Lblur(i≠max,p)＝0；
Wherein, the color value of Gray (p) the p point that is described gray-scale map; The color value of the p point that Lblur (i, p) is the radial blur figure in described i-th direction; Namely, the color value of the pixel of the maximum color value of the radial blur figure in i-th direction is made to equal the color value of the corresponding pixel points of described gray-scale map, and the color value of the rest of pixels point of the radial blur figure in this i-th direction equals 0, thus the radial direction figure that the radial blur figure obtaining i-th direction is corresponding;
Described eight radial figure are carried out a radial blur process along original direction by 52. again, obtain eight unidirectional string diagrams;
Described eight unidirectional string diagrams are carried out overlap-add procedure by 53., obtain final string diagram.
Preferably, in described step 60, obtain pencil sketch effect figure to the described background color figure process that to be multiplied with described string diagram, its computing method are:
Result＝color*linecolor/255；
Wherein, color is the color value of corresponding pixel points on background color figure, and linecolor is the color value of corresponding pixel points on string diagram, and Result is the color value of corresponding pixel points on pencil sketch effect figure.
In addition, present invention also offers a kind of image processing system of simulating pencil sketch, it is characterized in that, it comprises:
Gradation processing module, it carries out gray processing process to pending image, obtains gray-scale map;
Histogram Matching module, it carries out statistics with histogram to gray-scale map, and carries out Histogram Matching according to statistics with histogram result, obtains Histogram Mapping table;
Map processing module, it carries out mapping process according to described Histogram Mapping table to described gray-scale map, obtains background color figure;
Edge detection module, it carries out rim detection to described gray-scale map, obtains outline map;
Linear module, it carries out the radial blur process in eight directions to described outline map, and the radial blur figure in eight directions obtained is carried out overlap-add procedure, obtains string diagram;
Fusion Module, it to be multiplied with described string diagram to described background color figure and to process, and obtains pencil sketch effect figure.
The invention has the beneficial effects as follows:
A kind of image processing method and system simulating pencil sketch of the present invention, it is by carrying out statistics with histogram to the gray-scale map of pending image, and carry out Histogram Matching according to statistics with histogram result, obtain Histogram Mapping table, then according to described Histogram Mapping table, mapping process is carried out to described gray-scale map, obtain background color figure, again rim detection is carried out to described gray-scale map in addition and obtain outline map, and described outline map is carried out to the radial blur process in eight directions, the radial blur figure in obtain eight directions is carried out overlap-add procedure and obtains string diagram, finally described background color figure is multiplied with described string diagram and processes, obtain pencil sketch effect figure, thus improve the authenticity of pencil sketch effect.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is a kind of general flow chart of simulating the image processing method of pencil sketch of the present invention;
Fig. 2 is a kind of structural representation of simulating the image processing system of pencil sketch of the present invention;
Fig. 3 is the pending image of the present invention one specific embodiment;
Fig. 4 is the pencil sketch effect figure that Fig. 3 is corresponding.
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and beneficial effect clearly, understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of image processing method of simulating pencil sketch of the present invention, it comprises the following steps:
10. pair pending image carries out gray processing process, obtains gray-scale map;
20. pairs of gray-scale maps carry out statistics with histogram, and carry out Histogram Matching according to statistics with histogram result, obtain Histogram Mapping table;
30. carry out mapping process according to described Histogram Mapping table to described gray-scale map, obtain background color figure;
Gray-scale map described in 40. pairs carries out rim detection, obtains outline map;
Outline map described in 50. pairs carries out the radial blur process in eight directions, and the radial blur figure in eight directions obtained is carried out overlap-add procedure, obtains string diagram;
Background color figure described in 60. couples is multiplied with described string diagram and processes, and obtains pencil sketch effect figure.
It should be noted that, each step of the present invention non-required are according to described number order strict implement, and such as described step 40,50 can perform before step 20,30, also can perform side by side with step 20,30; Or also first can perform step 20 and step 40, rear execution step 30 and step 50.
The computing formula of the gray processing process in described step 10 is:
GRAY＝0.299*RED+0.587*GREEN+0.114*BLUE；
Or
GRAY＝(RED*306+GREEN*601+BLUE*117+512)/1024；
Wherein, RED, GREEN, BLUE are respectively the color value of the red, green, blue passage of each pixel of pending image, and GRAY is the color value of the corresponding pixel points of gray-scale map.
In described step 20, statistics with histogram is carried out to gray-scale map, and carry out Histogram Matching according to statistics with histogram result, obtain Histogram Mapping table, further comprising the steps:
Gray-scale map described in 21. pairs carries out statistics with histogram, obtains actual histogram;
22. according to the characteristic of described gray-scale map, obtains the standard histogram preset; This standard histogram three between shadow region, between interval, the specular of middle tone occupies 0 ~ 64,64 ~ 192,192 ~ 255 3 interval ratios that ratio adds up primarily of the gray-scale map of pending image and determines;
23. according to above-mentioned standard histogram, carries out Histogram Matching to actual histogram, actual histogram is near the mark histogram, and obtains Histogram Mapping table accordingly;
Histogram Mapping table described in 24. pairs carries out correction process, limits the mapping gradient of closing on color range of described Histogram Mapping table, obtains the Histogram Mapping table corrected, avoids because gradient is excessive, causes the background color layer generated to have obvious contrast color lump.
In described step 30, according to described Histogram Mapping table, mapping process is carried out to described gray-scale map and obtain background color figure, mainly by the color value of each pixel in described gray-scale map, replace to the new color value corresponding to this color value in described Histogram Mapping table, obtain background color figure.
In described step 40, rim detection is carried out to described gray-scale map and obtains outline map, the present embodiment does not limit the concrete edge detection algorithm of employing, such as Canny algorithm, Sobel algorithm, Roberts algorithm, SUSAN algorithm etc., complexity and the rim detection effect of algorithms of different are different, can select corresponding algorithm according to real image accuracy of detection.
In described step 50, described outline map is carried out to the radial blur process in eight directions, mainly described outline map is carried out radial blur process towards 0 °, 22.5 °, 45 °, 67.5 °, 90 °, 112.5 °, 135 °, 157.5 ° eight directions, obtain eight radial blur figure; In described step 50, the radial blur figure in obtain eight directions is carried out overlap-add procedure and obtains string diagram, further comprising the steps:
Corresponding to radial blur figure eight radial figure in eight directions described in 51. calculating, computing method are as follows:
Lblur(i＝max,p)＝Gray(p)；
Lblur(i≠max,p)＝0；
Wherein, the color value of Gray (p) the p point that is described gray-scale map; The color value of the p point that Lblur (i, p) is the radial blur figure in described i-th direction; Namely, the color value of the pixel of the maximum color value of the radial blur figure in i-th direction is made to equal the color value of the corresponding pixel points of described gray-scale map, and the color value of the rest of pixels point of the radial blur figure in this i-th direction equals 0, thus the radial direction figure that the radial blur figure obtaining i-th direction is corresponding;
Described eight radial figure are carried out a radial blur process along original direction by 52. again, obtain eight unidirectional string diagrams;
Described eight unidirectional string diagrams are carried out overlap-add procedure by 53., obtain final string diagram.
In described step 60, obtain pencil sketch effect figure to the described background color figure process that to be multiplied with described string diagram, its computing method are:
Result＝color*linecolor/255；
Wherein, color is the color value of corresponding pixel points on background color figure, and linecolor is the color value of corresponding pixel points on string diagram, and Result is the color value of corresponding pixel points on pencil sketch effect figure.
As shown in Figure 2, present invention also offers a kind of image processing system of simulating pencil sketch, it comprises:
Gradation processing module A, it carries out gray processing process to pending image, obtains gray-scale map;
Histogram Matching module B, it carries out statistics with histogram to gray-scale map, and carries out Histogram Matching according to statistics with histogram result, obtains Histogram Mapping table;
Map processing module C, it carries out mapping process according to described Histogram Mapping table to described gray-scale map, obtains background color figure;
Edge detection module D, it carries out rim detection to described gray-scale map, obtains outline map;
Linear module E, it carries out the radial blur process in eight directions to described outline map, and the radial blur figure in eight directions obtained is carried out overlap-add procedure, obtains string diagram;
Fusion Module F, it to be multiplied with described string diagram to described background color figure and to process, and obtains pencil sketch effect figure.
The present invention obtains the background color figure of pencil sketch by optimizing histogram, and the string diagram of pencil sketch is obtained by rim detection, then background color figure is carried out being multiplied with string diagram and obtain the pencil sketch effect figure (as shown in Figure 3 and Figure 4) of pending image, improve the authenticity of pencil sketch, better effects if is more natural.
It should be noted that, each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For system class embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
And, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.In addition, one of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be ROM (read-only memory), disk or CD etc.
Above-mentioned explanation illustrate and describes the preferred embodiments of the present invention, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and can in invention contemplated scope herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (9)
1. simulate an image processing method for pencil sketch, it is characterized in that, comprise the following steps:
10. pair pending image carries out gray processing process, obtains gray-scale map;
20. pairs of gray-scale maps carry out statistics with histogram, and carry out Histogram Matching according to statistics with histogram result, obtain Histogram Mapping table;
30. carry out mapping process according to described Histogram Mapping table to described gray-scale map, obtain background color figure;
Gray-scale map described in 40. pairs carries out rim detection, obtains outline map;
Outline map described in 50. pairs carries out the radial blur process in eight directions, and the radial blur figure in eight directions obtained is carried out overlap-add procedure, obtains string diagram;
Background color figure described in 60. couples is multiplied with described string diagram and processes, and obtains pencil sketch effect figure.
2. a kind of image processing method of simulating pencil sketch according to claim 1, is characterized in that: the computing formula of the gray processing process in described step 10 is:
GRAY＝0.299*RED+0.587*GREEN+0.114*BLUE；
Or
GRAY＝(RED*306+GREEN*601+BLUE*117+512)/1024；
Wherein, RED, GREEN, BLUE are respectively the color value of the red, green, blue passage of each pixel of pending image, and GRAY is the color value of the corresponding pixel points of gray-scale map.
3. a kind of image processing method of simulating pencil sketch according to claim 1, it is characterized in that: in described step 20, statistics with histogram is carried out to gray-scale map, and carry out Histogram Matching according to statistics with histogram result, obtain Histogram Mapping table, further comprising the steps:
Gray-scale map described in 21. pairs carries out statistics with histogram, obtains actual histogram;
22. according to the characteristic of described gray-scale map, obtains the standard histogram preset;
23. according to above-mentioned standard histogram, carries out Histogram Matching to actual histogram, actual histogram is near the mark histogram, and obtains Histogram Mapping table accordingly.
4. a kind of image processing method of simulating pencil sketch according to claim 3, is characterized in that: also comprise step 24, carries out correction process to described Histogram Mapping table, limits the mapping gradient of closing on color range of described Histogram Mapping table.
5. a kind of image processing method of simulating pencil sketch according to claim 1 or 2 or 3 or 4, it is characterized in that: in described step 30, according to described Histogram Mapping table, mapping process is carried out to described gray-scale map and obtain background color figure, mainly by the color value of each pixel in described gray-scale map, replace to the new color value corresponding to this color value in described Histogram Mapping table, obtain background color figure.
6. a kind of image processing method of simulating pencil sketch according to claim 1 or 2 or 3 or 4, it is characterized in that: in described step 50, described outline map is carried out to the radial blur process in eight directions, mainly described outline map is carried out radial blur process towards 0 °, 22.5 °, 45 °, 67.5 °, 90 °, 112.5 °, 135 °, 157.5 ° eight directions, obtain eight radial blur figure.
7. a kind of image processing method of simulating pencil sketch according to claim 1 or 2 or 3 or 4, is characterized in that: in described step 50, the radial blur figure in obtain eight directions is carried out overlap-add procedure and obtains string diagram, further comprising the steps:
Corresponding to radial blur figure eight radial figure in eight directions described in 51. calculating, computing method are as follows:
Lblur(i＝max,p)＝Gray(p)；
Lblur(i≠max,p)＝0；
Wherein, the color value of Gray (p) the p point that is described gray-scale map; The color value of the p point that Lblur (i, p) is the radial blur figure in described i-th direction; Namely, the color value of the pixel of the maximum color value of the radial blur figure in i-th direction is made to equal the color value of the corresponding pixel points of described gray-scale map, and the color value of the rest of pixels point of the radial blur figure in this i-th direction equals 0, thus the radial direction figure that the radial blur figure obtaining i-th direction is corresponding;
Described eight radial figure are carried out a radial blur process along original direction by 52. again, obtain eight unidirectional string diagrams;
Described eight unidirectional string diagrams are carried out overlap-add procedure by 53., obtain final string diagram.
8. a kind of image processing method of simulating pencil sketch according to claim 1 or 2 or 3 or 4, it is characterized in that: in described step 60, obtain pencil sketch effect figure to the described background color figure process that to be multiplied with described string diagram, its computing method are:
Result＝color*linecolor/255；
Wherein, color is the color value of corresponding pixel points on background color figure, and linecolor is the color value of corresponding pixel points on string diagram, and Result is the color value of corresponding pixel points on pencil sketch effect figure.
9. simulate an image processing system for pencil sketch, it is characterized in that, it comprises:
Gradation processing module, it carries out gray processing process to pending image, obtains gray-scale map;
Histogram Matching module, it carries out statistics with histogram to gray-scale map, and carries out Histogram Matching according to statistics with histogram result, obtains Histogram Mapping table;
Map processing module, it carries out mapping process according to described Histogram Mapping table to described gray-scale map, obtains background color figure;
Edge detection module, it carries out rim detection to described gray-scale map, obtains outline map;
Linear module, it carries out the radial blur process in eight directions to described outline map, and the radial blur figure in eight directions obtained is carried out overlap-add procedure, obtains string diagram;
Fusion Module, it to be multiplied with described string diagram to described background color figure and to process, and obtains pencil sketch effect figure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510298672.XA CN104915976A (en) | 2015-06-03 | 2015-06-03 | Image processing method and system for simulating pencil sketch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510298672.XA CN104915976A (en) | 2015-06-03 | 2015-06-03 | Image processing method and system for simulating pencil sketch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104915976A true CN104915976A (en) | 2015-09-16 |
Family
ID=54085012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510298672.XA Pending CN104915976A (en) | 2015-06-03 | 2015-06-03 | Image processing method and system for simulating pencil sketch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104915976A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374061A (en) * | 2015-10-23 | 2016-03-02 | 世纪龙信息网络有限责任公司 | Image sketching method and system |
| WO2018153264A1 (en) * | 2017-02-27 | 2018-08-30 | 迈吉客科技（北京）有限公司 | Image processing method and apparatus |
| CN108682040A (en) * | 2018-05-21 | 2018-10-19 | 努比亚技术有限公司 | A kind of sketch image generation method, terminal and computer readable storage medium |
| CN109102482A (en) * | 2018-07-20 | 2018-12-28 | 广州市普汉科技有限公司 | For obtaining the pseudo-classic effect image processing method of embossment for being suitable for laser engraving |
| CN109300099A (en) * | 2018-08-29 | 2019-02-01 | 努比亚技术有限公司 | A kind of image processing method, mobile terminal and computer readable storage medium |
| CN110070499A (en) * | 2019-03-14 | 2019-07-30 | 北京字节跳动网络技术有限公司 | Image processing method, device and computer readable storage medium |
| WO2020015724A1 (en) * | 2018-07-20 | 2020-01-23 | 华为技术有限公司 | Picture acquisition method, and picture processing method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587593A (en) * | 2009-06-19 | 2009-11-25 | 西安交通大学 | A kind of method based on the stylization of true picture sketch |
| CN103455974A (en) * | 2013-05-24 | 2013-12-18 | 厦门美图网科技有限公司 | Image sketching style processing method |
| CN103793930A (en) * | 2014-01-27 | 2014-05-14 | 汉王科技股份有限公司 | Pencil drawing image generation method and device |
| CN103914699A (en) * | 2014-04-17 | 2014-07-09 | 厦门美图网科技有限公司 | Automatic lip gloss image enhancement method based on color space |
| CN103914862A (en) * | 2014-03-10 | 2014-07-09 | 上海大学 | Pencil sketch simulating method based on edge tangent stream |
-
2015
- 2015-06-03 CN CN201510298672.XA patent/CN104915976A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101587593A (en) * | 2009-06-19 | 2009-11-25 | 西安交通大学 | A kind of method based on the stylization of true picture sketch |
| CN103455974A (en) * | 2013-05-24 | 2013-12-18 | 厦门美图网科技有限公司 | Image sketching style processing method |
| CN103793930A (en) * | 2014-01-27 | 2014-05-14 | 汉王科技股份有限公司 | Pencil drawing image generation method and device |
| CN103914862A (en) * | 2014-03-10 | 2014-07-09 | 上海大学 | Pencil sketch simulating method based on edge tangent stream |
| CN103914699A (en) * | 2014-04-17 | 2014-07-09 | 厦门美图网科技有限公司 | Automatic lip gloss image enhancement method based on color space |
Non-Patent Citations (1)
| Title |
|---|
| 全国专业技术人员计算机应用能力考试命题研究组编著: "《Photoshop 6.0图像处理考前冲刺与全真模拟 新大纲专用》", 31 January 2014, 北京：机械工业出版社 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374061A (en) * | 2015-10-23 | 2016-03-02 | 世纪龙信息网络有限责任公司 | Image sketching method and system |
| CN105374061B (en) * | 2015-10-23 | 2017-12-29 | 世纪龙信息网络有限责任公司 | Image sketch processing method and its system |
| WO2018153264A1 (en) * | 2017-02-27 | 2018-08-30 | 迈吉客科技（北京）有限公司 | Image processing method and apparatus |
| CN108682040A (en) * | 2018-05-21 | 2018-10-19 | 努比亚技术有限公司 | A kind of sketch image generation method, terminal and computer readable storage medium |
| CN109102482A (en) * | 2018-07-20 | 2018-12-28 | 广州市普汉科技有限公司 | For obtaining the pseudo-classic effect image processing method of embossment for being suitable for laser engraving |
| WO2020015724A1 (en) * | 2018-07-20 | 2020-01-23 | 华为技术有限公司 | Picture acquisition method, and picture processing method and device |
| CN109102482B (en) * | 2018-07-20 | 2021-07-27 | 广州市普汉科技有限公司 | Processing method for obtaining relief antique effect image suitable for laser engraving |
| US11302286B2 (en) | 2018-07-20 | 2022-04-12 | Huawei Technologies Co., Ltd. | Picture obtaining method and apparatus and picture processing method and apparatus |
| CN109300099A (en) * | 2018-08-29 | 2019-02-01 | 努比亚技术有限公司 | A kind of image processing method, mobile terminal and computer readable storage medium |
| CN110070499A (en) * | 2019-03-14 | 2019-07-30 | 北京字节跳动网络技术有限公司 | Image processing method, device and computer readable storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104915976A (en) | Image processing method and system for simulating pencil sketch | |
| CN106548455B (en) | Apparatus and method for adjusting brightness of image | |
| CN104915975A (en) | Image processing method and system for simulating crayon colored drawing | |
| CN103021002B (en) | Colored sketch image generating method | |
| CN104038807B (en) | A kind of figure layer mixed method and device based on OpenGL | |
| CN106204690B (en) | Image processing method and device | |
| CN104700371A (en) | Generation method and system of masking | |
| US20180322367A1 (en) | Image processing method, non-transitory computer readable storage medium and image processing system | |
| Grundland et al. | Cross dissolve without cross fade: Preserving contrast, color and salience in image compositing | |
| CN104063848A (en) | Enhancement method and device for low-illumination image | |
| Wang et al. | Variational single nighttime image haze removal with a gray haze-line prior | |
| CN113658316B (en) | Rendering method and device of three-dimensional model, storage medium and computer equipment | |
| US10922852B2 (en) | Oil painting stroke simulation using neural network | |
| CN103295205B (en) | A kind of low-light-level image quick enhancement method based on Retinex and device | |
| CN109803172A (en) | A kind of processing method of live video, device and electronic equipment | |
| CN113436284A (en) | Image processing method and device, computer equipment and storage medium | |
| Liu et al. | Progressive complex illumination image appearance transfer based on CNN | |
| Su et al. | An edge-refined vectorized deep colorization model for grayscale-to-color images | |
| CN103839245A (en) | Retinex night color image enhancement method based on statistical regularities | |
| CN105139368B (en) | A kind of mixed type tone mapping method available for machine vision | |
| Wang et al. | Underwater color disparities: Cues for enhancing underwater images toward natural color consistencies | |
| CN110610504A (en) | Pencil drawing generation method and device based on skeleton and tone | |
| CN110675345A (en) | Fuzzy completion processing method and device for remote sensing image to-be-repaired area | |
| Lopez-Moreno et al. | Non-photorealistic, depth-based image editing | |
| US20170274285A1 (en) | Method and apparatus for automating the creation of a puzzle pix playable on a computational device from a photograph or drawing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |