CN103911717B - Method for adjusting visual effect of tapestry - Google Patents
Method for adjusting visual effect of tapestry Download PDFInfo
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- CN103911717B CN103911717B CN201410140090.4A CN201410140090A CN103911717B CN 103911717 B CN103911717 B CN 103911717B CN 201410140090 A CN201410140090 A CN 201410140090A CN 103911717 B CN103911717 B CN 103911717B
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Abstract
The invention discloses a method for adjusting a visual effect of a tapestry. The method comprises the steps of designing tightness of the tapestry and analyzing a target electronic digital picture. According to the method, values of the warp-direction tightness Et, the weft-direction tightness Ew and the total fabric tightness E of the tapestry are defined, so that the phenomenon that the color of a bottom panel is exposed due to the low tightness of a finished tapestry is avoided; meanwhile, defects of bulges and the like caused by the extremely high tightness of a finished tapestry are also prevented; the effect of the finished tapestry is enhanced. Natural scenery used as a tapestry manuscript is adjusted, so that the brightness and the picturing effect of the finished tapestry are obviously improved.
Description
Technical field
The present invention relates to automation coloured silk and knit technical field, is particularly the effect improved method of adjustment of finished product picture scene that coloured silk knits original copy with natural land.
Background technology
It is a kind of novelty, unique textile fabric that coloured silk is knitted, also be the double fiber art product deposited of current most advance, artistry and practicality, industrial automation control system reasonable utilization weaved to textile process technology and in conjunction with high-accuracy fabric manufacture equipment advanced in the world and forms.Be different from the fabric of other kind, it is cloth specimen with various dyed yarn longitude and latitude interlocks, track and column braiding and outdoor scene height emulate that coloured silk is knitted, coloured silk each color of knitting point (interlacing point) of sample of weaving cotton cloth is the color of the dyed yarn being in this position, efficiently solve traditional colouring method i.e. easily decolouring after pattern, variable color, not wash fast problem in cloth surface printing and dyeing, to be interweaved the high emulated interface formed by the polychromatic yarn longitude and latitude of precision, textiles the is widened market space and Application Areas, improve the acceptability of consumer, there is huge market value.
The basic procedure that coloured silk knits manufacture craft is the picture first selecting (or user provides voluntarily) to weave, i.e. object (personage, landscape, artistic photography works, folk art pattern, art painting works etc.), these pictures are carried out material object shooting and obtain corresponding electronic digital photo, photo is read in computer, its primary visual characteristics is tentatively judged, analyze its view data, then the pixel of picture is corresponded to the establishment that fabric tissue point carries out programming and technical papers, this work is exactly mainly make the weave cotton cloth color of the filling yarn in sample of coloured silk corresponding with the color of pixel, coupling, program is by automatic fast processing former state color essential and distribution, on fabric manufacture equipment, assorted yarn to drift along intertexture mutually by calling homochromy yarn in the distribution according to sheet pixel, coloured silk knit manufacture craft next step be the establishment of plan of weave and line version, plan of weave flower shape is amplified according to grain pattern bonded fabric tissue and be painted on the pattern on certain specification design paper by idea, for common weaving face fabric, generally indicate a decorative pattern circulation, it is that first to make the heavy latitude (warp) of specification and fabric according to the thread count of fabric, the dress of board several that traditional plan of weave is formed, and calculates corresponding design paper specification, go out the number of lattice in length and breadth needed for plan of weave according to the Size calculation of little sample manuscript again, and then convert artistic conception paper to and sticked together, then setting-out, tint, put between silk.And to utilize special-purpose software to draw plan of weave be input the thread count of fabric when picture scanning, determine one circulate spend wide with spend height, automatically calculate graticule number, according to line pin number, organize broadwise period slightly to make an amendment; Enter the line version establishment stage, finally export the line version file of various different-format according to board categories of software, file is inputted perforating press computer, whether perforating press promotes information according to the warp thread that file provides and automatically goes out paper mold fast.Knit in the weaving process of formation at coloured silk, first combining of Automated Design and engineer is achieved, software systems are according to the color of original work, adopt multiple optimized calculation method, knit organizing line, textile material, silk craft, colorimetry, graphics and Digital Image Processing be integrated, conjunctive tissue structure law, automatically selects suitable dyed yarn and tissue, and adopts electronic jacquard to complete to weave.The embodiment of product drawing is by polychrome combed cotton (or polyester-cotton blend, wash silk) cotton textiles different with polychrome thickness (or polyester-cotton blend, wash silk) graticule is interwoven, current coloured silk is woven in present picture for master's, be in the fabric of main skill gimmick with yarn woven, its picture emulates the height of original work, third dimension, sophistication and authenticity are all in absolute superiority, it will be further appreciated that, coloured silk is knitted and can be realized the single of single picture and weave (as personage's wedding photo), this realizes with industrial automation processing mode, the fabric of any type all cannot be accomplished.Color weaving process design software has different features from other conventional textile CAD: read in photo or picture, automatic processing section only needs a few minutes to complete; Arrange through weft yarn color, parameter regulates; According to picture, the artistic conception color of automatic generation is true to nature, can automatically generate can more than the artistic conception of 256 looks and organization configurations table, tissue bank is coordinated directly to export line version, also can use piecemeal process for different effects, Shi Wenban tissue effect limits more than 256 looks, realizes line version and merges, and long and stitch weave point are floated in amendment automatically, exchanged by line version warp order and realize the arrangement of any warp.
Except directly using software programming technical papers, the quality control that coloured silk is made into product also should realize in combination with various ways such as change fibrous raw material, longitude and latitude yarn count, thread count, fabric tissue, yarn texture, thread dyeing method, fabrics finishing methods, is finally formed or the cloth specimen of smooth exquisiteness or concavo-convex rough or frivolous exquisiteness or the abundant different-style such as plentiful.Being made into the visual effect of product from coloured silk, also there are some problems in this system, is mainly manifested in and lacks judgement and adjustment automatically to original copy pattern color and bright information; Fail to determine the fineness of filling yarn and the tightness (ratio of yarns in worsted fabric projected area and fabric entire area) of final cloth specimen fabric under the prerequisite that thread count is determined, thus make the cloth specimen of multiply cloth institutional framework, the Color pair surface layer yarn configuration of its bottom yarn goes out emulated interface and forms overall interference, and the appearance of this problem selects the color of yarn (comprising surface layer and bottom) also insurmountable by adjustment.
Summary of the invention
Object of the present invention is just to provide and a kind ofly adjusts the method that coloured silk knits visual effect, definition, lightness, fidelity and fabric compactness that it is knitted coloured silk adjust, solving the current coloured silk system of knitting cannot subjective assessment and lack adjustment experience to original copy picture due to subscribers, and create product defects, improve coloured silk and knit quality.
The object of the invention is by such technical scheme realize, include following steps:
1) choose the object needing to weave, material object shooting is carried out to object, generates target electronic digital photograph, and stored in computer;
2) target electronic digital photograph analyzed and process;
3) pixel of the target electronic digital photograph after process is corresponded to fabric tissue point, choose yarn color and the thickness of yarn of fabric tissue point, ensure color fabric compactness design of knitting visual effect;
4) according to step 3) process after result generate plan of weave;
5) according to step 4) plan of weave that generates, control fabric manufacture equipment and generate coloured silk and knit picture;
Step 3) described selection thickness of yarn, ensure that the color concrete grammar knitting the fabric compactness design of visual effect is:
Tightness is divided into warp-wise tightness, broadwise tightness and fabric total tightness degree;
Warp-wise tightness Et is the percentage of the ratio of distances constant between warp diameter and two warp thread,
Broadwise tightness Ew is the percentage of the ratio of distances constant between diameter of the weft yarn and two weft yarns,
Fabric total tightness degree E is the area that covers through weft yarn in fabric and the percentage of the ratio of the fabric gross area,
Et＝Ptdt
Ew＝Pwdw
E＝Et+Ew-0.01EtEw
In formula:
Dt is the warp diameter of fabric, and its unit is mm;
Dw is the diameter of the weft yarn of fabric, and its unit is mm;
Pt is the warp count of fabric, and its unit is root/mm;
Pw is the weft count of fabric, and its unit is root/mm;
Adjustment thickness of yarn, make warp-wise tightness Et and broadwise tightness Ew all be greater than 45, fabric total tightness degree is greater than 86.
Further, step 2) described in the concrete grammar that target electronic digital photograph carries out treatment and analysis be:
Be 2-1) 280dpi by the resolution setting of target electronic digital photograph, the long limit pixel count of Offered target electronic digital photo and minor face pixel count are 30 to 60 times that coloured silk knits specification;
2-2) brightness of target electronic digital photograph and color are analyzed and are adjusted:
A) integrated regulation, first carries out color range analysis to target electronic digital photograph, and based on black level value, value 1 is constant, and white value is adjusted to 40 to 60; Then adjust gamma value lightness and color balance, the scope of adjustment is 1.25 to 1.48;
B) local directed complete set, need the part of editing in select target electronic digital photo, then adjust white value and the gamma value of this part, the adjusting range of white value is 40 to 60, and the adjusting range of gamma value is 1.25 to 1.48.
Further, step 2-1) in, the resolution setting of target electronic digital photograph is 280dpi, and the long limit pixel of target electronic digital photograph and minor face pixel are 30 times that coloured silk knits specification; Step 2-2) in white value be adjusted to 40, gamma value is adjusted to 1.25.
Further, step 2-1) in, the resolution setting of target electronic digital photograph is 280dpi, and the long limit pixel of target electronic digital photograph and minor face pixel are 45 times that coloured silk knits specification; Step 2-2) in white value be adjusted to 50, gamma value is adjusted to 1.35.
Further, step 2-1) in, the resolution setting of target electronic digital photograph is 280dpi, and the long limit pixel of target electronic digital photograph and minor face pixel are 60 times that coloured silk knits specification; Step 2-2) in white value be adjusted to 60, gamma value is adjusted to 1.48.
Owing to have employed technique scheme, the present invention has following advantage:
The numerical value of the warp-wise tightness Et that the present invention knits coloured silk, broadwise tightness Ew and fabric total tightness degree E limits, the color preventing from coloured silk to be made into product exposing bottom plate face because tightness is too low, also prevent coloured silk to be made into product simultaneously and occur the faults such as protruding because tightness is too high, improve the effect that coloured silk is made into product.The present invention, to being that coloured silk is knitted original copy and adjusted with natural land, significantly improving coloured silk and is made into the vividness of product and becomes picture effect.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by description below and claims and be obtained.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows.
Fig. 1 is schematic flow sheet of the present invention.
Detailed description of the invention
Adjust the method that coloured silk knits visual effect, first comparison film carries out fundamental analysis, determines whether the size of original copy photo meets the size of the photo needed for specification of sample of will weaving cotton cloth.First the visual performance that coloured silk is made into product depends on the size of photo and the area specification that will be made into cloth specimen of correspondence, photo and corresponding coloured silk knit specification should meet following requirement: 1. when selecting object to take pictures, and most of digital camera all can provide multiple photograph shooting quality to select for user.Mainly be divided into Best best in quality, Good good quality and Normal normal quality.Select the shooting quality of more than Good level, the photo obtained is jpg form, in setting resolution ratio, pixel count/centimetre, for under 280dpi condition, the weave cotton cloth key of sample of the coloured silk weaving high emulation is the length of side pixel count of target electronic digital photograph, namely the long limit pixel of digital photograph and the minimum of a value of minor face pixel is limited, through many experiments, finished product visual effect and original copy photo size are compared, finally determine to ensure that color precondition of knitting gross meets following rule: the long limit pixel count of target electronic digital photograph and the minimum of a value of minor face pixel count are 30 times that coloured silk knits specification, unit is centimetre, Appropriate is 60 times, cross the increase that conference causes picture processing duration and difficulty, as the cloth specimen of 60x90 centimetre will be woven, the length of side pixel count of photo is minimum is (60x30) x (90x30)=1800x3600, the length of side pixel count Appropriate of target electronic digital photograph is (60x60) x (90x60)=3600x5400, the minimum of a value of the photo size simultaneously represented with M should be 6 times of cloth specimen area figures, square metre to represent, suitable size is 12 times, for reducing picture processing difficulty, be no more than 15 times, as to be made into conventional, knit for width coloured silk in indoor wall hanging, 60x90 centimetre, area is 0.54 square meter, and photo is minimum should be 0.54x6=3.24M, and suitable size is 4.3-6.5M, the ancient painting material coloured silk of 200x400 centimetre for deluxe restaurant decoration is weaved cotton cloth sample, and area 8.0 square meter, reproduction from a photograph is minimum should be 8.0x6=48M, and suitable size is 64-96M.Here the picture size of indication unprocessed after referring to digital camera photography, be directly downloaded to the size represented on computer, with JPG form, its size could be determined under the digital photograph of other form first need change into this form.
The analysis and adjustment of comparison film lightness and color.Although this step mainly reaches requirement for target electronic digital photograph size, but because the position of finding a view of cameraman, photography level or the photograph taking time of finding a view are the specific special time, as sunrise in early morning, the at dusk setting sun set, many reasons such as urban landscape and the original copy photo local that formed or the overall defect such as dim or fuzzy, comparison film carries out process that is brightness, sharpening, by adjusting the shadow of image, middle tone and high light equal strength rank, the tone range of correcting image and color balance.First reading graph software is used to open target electronic digital photograph, if integrated regulation, first directly selection exposes adjustment again, carry out color range analysis, then general be worth based on black level value B constant, its original value is 1, adjusting range is 1-256, by white value W, its original value is 1, adjusting range is 1-256, be adjusted to the scope of 40-65, then gamma value G is proceeded, its original value is 1, adjusting range is 0.01-1.99, lightness and color balance, the scope of adjustment is 1.25-1.45, Part of photos taken is as too dark, can heighten to 1.46-1.58, if the local lightness of photo and color subscribers are unsatisfied with, then after first will opening original photo, then make photo enter editing mode, under editing mode, demarcate the region will carrying out adjusting, then carry out according to aforesaid integrated regulation step.
Ensure color fabric compactness design of knitting visual effect.Coloured silk sample of weaving cotton cloth is many multiply cloths weaved through many latitudes, be divided into the bottom of top layer and the fixing top layer yarn presenting picture, under the prerequisite selecting certain fabric width loom electronic jacquard line pin number fixing, top layer fabric tightness can have influence on the visual effect of whole picture, particularly to be multiple light color yarn be on top layer main and bottom is the yarn of single dark color time, picture yarn effectively must cover bottom yarn; The tightness of fabric refers to the ratio of yarns in worsted fabric projected area and fabric entire area, the explanation fabric tightness that ratio is large, ratio little explanation fabric is more sparse, the coloured silk that tightness is little is weaved cotton cloth sample, the overall picture lightness of bottom yarn Color pair and color produce severe jamming, before device transmission technique execute file, the fineness of the top layer graticule determining top layer tightness is selected to be the key solving this problem.Tightness is divided into warp-wise tightness, broadwise tightness and fabric total tightness degree three kinds.
Warp-wise tightness Et is the percentage of the ratio of distances constant between warp diameter and two warp thread,
The percentage of the ratio of distances constant between broadwise tightness Ew diameter of the weft yarn and two weft yarns,
Fabric total tightness degree E is the area that covers through weft yarn in fabric and the percentage of the ratio of the fabric gross area.
Et＝Ptdt
Ew＝Pwdw
E＝Et+Ew-0.01EtEw
In formula:
Dt is the warp diameter of fabric, and its unit is mm;
Dw is the diameter of the weft yarn of fabric, and its unit is mm;
Pt is the warp count of fabric, and its unit is root/mm;
Pw is the weft count of fabric, and its unit is root/mm.
More than try to achieve under yarn is cylindrical situation, do not consider because filling yarn mutually extrudes in fabric and produce distortion, the result of gained is approximation.When embody rule, measure yarn diameter under the microscope and go out warp-wise tightness Et and broadwise tightness Ew and fabric total tightness degree E according to above formulae discovery, coloured silk is knitted for cotton knit, general employing compact spinning cotton yarn or polyester-cotton blend composite yarn, warp-wise tightness Et and broadwise tightness Ew all should be greater than 45, and fabric total tightness degree should be greater than 86, if be less than this numerical value, not only affecting image quality, also easily being formed as hooked the fabric defects such as silk, fluffing simultaneously.
Example one: if the overall lightness of photo is little, technically select integrated regulation, black level value B is constant, and white value W is adjusted to 48, and gamma value G selects 1.28; Effect before and after contrast adjustment can be found out, picture luminance and vividness are obviously improved, and carry out line version and technological design after coloured silk being knitted design system, select purified cotton yarns, warp-wise tightness Et and broadwise tightness Ew is 48, and fabric total tightness degree is 95.77, and finished product successful promotes.
Example two: if Original Photo itself is night scene, but below 2/3rds part of photo is obviously partially black, partially dark, lightness is little, it is in addition color that what be made into that product select is the purified cotton yarns with certain light absorptive and less reflective, if Direct Programming, weave, product is dim by entirety, therefore need to adjust, but integrated regulation is unfit to do to the adjustment of night scene photo, as first having a go at integrated regulation, technical scheme is: black level value B is constant, white value W is 45, gamma value G is 1.30, brightness and the vividness of the mid portion of the picture after integrated regulation are higher, some image contours originally manifested are covered, the overall distortion of picture, therefore, carry out local directed complete set, technical scheme is: select the region needing adjustment, black level value B is constant, white value W is 40, gamma value G is 1.28, because be night scene, the white value W of the bright adjustment in local, gamma value G should consider to adopt lower limit, otherwise will be inharmonious with non-adjustment member, the picture system of reading in after local directed complete set is carried out line version and technological design, selects purified cotton yarns, warp-wise tightness Et and broadwise tightness Ew is 49, fabric total tightness degree is 97.76, and finished product basic guarantee shows the gorgeous night scene of the busy city that original copy will reflect.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.
Claims (4)
1. adjust the method that coloured silk knits visual effect, include following steps:
1) choose the object needing to weave, material object shooting is carried out to object, generates target electronic digital photograph, and stored in computer;
2) target electronic digital photograph analyzed and process;
3) pixel of the target electronic digital photograph after process is corresponded to fabric tissue point, choose yarn color and the thickness of yarn of fabric tissue point, ensure color fabric compactness design of knitting visual effect;
4) according to step 3) process after result generate plan of weave;
5) according to step 4) plan of weave that generates, control fabric manufacture equipment and generate coloured silk and knit picture;
It is characterized in that,
Step 2) described in the concrete grammar that target electronic digital photograph carries out treatment and analysis be:
Be 2-1) 280dpi by the resolution setting of target electronic digital photograph, the long limit pixel count of Offered target electronic digital photo and minor face pixel count are 30 to 60 times that coloured silk knits specification;
2-2) brightness of target electronic digital photograph and color are analyzed and are adjusted:
A) integrated regulation, first carries out color range analysis to target electronic digital photograph, and based on black level value, value 1 is constant, and white value is adjusted to 40 to 60; Then adjust gamma value, lightness and color balance, the scope of adjustment is all 1.25 to 1.48;
B) local directed complete set, need the part of editing in select target electronic digital photo, then adjust white value and the gamma value of this part, the adjusting range of white value is 40 to 60, and the adjusting range of gamma value is 1.25 to 1.48;
Step 3) select thickness of yarn, ensure that the color concrete grammar knitting the fabric compactness design of visual effect is:
Tightness is divided into warp-wise tightness, broadwise tightness and fabric total tightness degree;
Warp-wise tightness Et is the percentage of the ratio of distances constant between warp diameter and two warp thread,
Broadwise tightness Ew is the percentage of the ratio of distances constant between diameter of the weft yarn and two weft yarns,
Fabric total tightness degree E is the area that covers through weft yarn in fabric and the percentage of the ratio of the fabric gross area,
Et＝Ptdt
Ew＝Pwdw
E＝Et+Ew-0.01EtEw
In formula:
Dt is the warp diameter of fabric, and its unit is mm;
Dw is the diameter of the weft yarn of fabric, and its unit is mm;
Pt is the warp count of fabric, and its unit is root/mm;
Pw is the weft count of fabric, and its unit is root/mm;
Adjustment thickness of yarn, make warp-wise tightness Et and broadwise tightness Ew all be greater than 45, fabric total tightness degree is greater than 86.
2. a kind ofly adjust the method that coloured silk knits visual effect as claimed in claim 1, it is characterized in that: step 2-1) in, the resolution setting of target electronic digital photograph is 280dpi, and the long limit pixel of target electronic digital photograph and minor face pixel are 30 times that coloured silk knits specification; Step 2-2) in integrated regulation or local directed complete set: white value is adjusted to 40, and gamma value is adjusted to 1.25.
3. a kind ofly adjust the method that coloured silk knits visual effect as claimed in claim 1, it is characterized in that: step 2-1) in, the resolution setting of target electronic digital photograph is 280dpi, and the long limit pixel of target electronic digital photograph and minor face pixel are 45 times that coloured silk knits specification; Step 2-2) in integrated regulation or local directed complete set: white value is adjusted to 50, and gamma value is adjusted to 1.35.
4. a kind ofly adjust the method that coloured silk knits visual effect as claimed in claim 1, it is characterized in that: step 2-1) in, the resolution setting of target electronic digital photograph is 280dpi, and the long limit pixel of target electronic digital photograph and minor face pixel are 60 times that coloured silk knits specification; Step 2-2) in integrated regulation or local directed complete set: white value is adjusted to 60, and gamma value is adjusted to 1.48.
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| CN104346818B (en) * | 2014-10-27 | 2017-07-18 | 江南大学 | A kind of threads per unit length method for automatic measurement |
| CN109325933B (en) * | 2017-07-28 | 2022-06-21 | 阿里巴巴集团控股有限公司 | Method and device for recognizing copied image |
| CN111062934B (en) * | 2019-12-25 | 2023-10-13 | 陈金选 | Fabric image defect real-time detection method |
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| CN102950962A (en) * | 2011-08-30 | 2013-03-06 | 天津纺织工程研究院有限公司 | Application of three-dimensional (3D) technology to woven pictures |
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