Image mesh attune processes the application in equipment of laser beam machining

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[Summary] : In equipment of 2 values output (be like: Machine of printer, laser) the foundation that the site is regarded as to make picture all the time, it is the main unit that behaves image rank attune, it is expressional image the important segment of disparate arrangement of ideas. The article introduced a kind to add net craft theory in order to presswork to be a foundation, with computer number processing is a method, chromatic picture translate into the site pursues and in equipment of laser beam machining the number of output adds network program. [Keyword] : Site, add net, amplitude modulation to add net, frequency modulation to add net, 2 values to change, mesh attune. 1 foreword is in the times of digitlization, article of the graph before image is outputted information processing is old presswork one of development is rapid domains among the technology. Especially inside nearly 20 years, the information of digital image is collected, processing, output and transmission produced extensive and profound change, but the concept that changes with the administrative levels that site size or density will come to reflect image is perforative from beginning to end. Long-term since, the implementation measure that image imposes a net from handiwork, take a picture, the electron evolves into complete digitlization to handle. After be being digitlized in the technology that increase a net, the of all kinds algorithm that increase a net is ceaseless get rid of the stale and bring forth the fresh, divide pair of amplitude modulation to add net and frequency modulation to add net technology to be perfected further beyond, still appeared amplitude modulation and frequency modulation mix the technology that increase a net. These technical progress improved the quality with duplicate image not only, and promoted bar case image to handle the work (Ripping) efficient move. The occurrence as laser equipment and apply, undertake to chromatic image to output media with laser machine gray scale output begins to apply at handicraft to machine a domain in recent years. How the administrative levels of emersion manuscript and rank attune character make core of carven of laser gray scale. Machine of 2 fundamental laser is equipment of 2 values output (open smooth, Guan Guang) , after because this color bitmap also needs translate into,2 values pursue, ability passes laser machine to output. The 2 values of image change a process to hang the process of the net to bitmap namely. Before contrapuntal graph hangs a net, need to pursue gray scale of chromatic bitmap translate into above all, save with the format of chromatic bitmap in the computer pursue for gray scale. The memory space that saves gray scale to although can take up,pursue many with the format of chromatic bitmap, went to the lavatory to hang the coordinate in net process to change greatly however. Image of figure of gray scale figure shows on monitor when, list according to integral travel, integer by many dot elephantine element right neat arrange. Laser machine regards our output as equipment, the image of output records plane to go up to be nodded by many notes likewise in its (pulse is nodded) be opposite according to integral travel, integral row neat arrange composition. Assume we need to output a resolution to be 100 × through laser machine the digital image of 100, output dimension is 10 × surely 10 (Mm) ; The resolution that sets laser machine again is 50 (pulse / millimeter) . The image that can calculate so that laser machine outputs inside output plane so is actually by 500 × 500 (pulse) pulse matrix forms. Criterion the each elephant element of digital image nods corresponding pulse a 5 × in matrix the pulse of 5 is unit. Whether does dot of every pulse in the matrix of size control pulse that should be worth according to resembling element only now open light, can finish hang a net, the site that forms different measurement and the angle that increase a net. Pass the analysis above, actually we can regard afore-mentioned processes as: Magnified digital image at the same time on direction of X, Y 5 times, that is to say the elephantine element that the value of a gray scale that gray scale pursues is A nodded enlarge to become a 5 × the lattice elephantine element of 5, the value elephantine element that and should resemble the every elephant element of element lattice nods is A. So right after the digital image after enlarge undertakes 2 values change processing, the value elephantine element that the every elephant element of digital image nods has 1 only or two kinds of 0 condition, corresponding also every pulse that makes output picture chooses light or close light two kinds of condition. The law of unripe set prescription of site of 3 different measurement (go to the lavatory to explain, add net angle to be 0 degrees suppose) the modulation that site size suffers image gray scale to be worth, the cost of average elephant element that is like this area is higher, the site that map builds is smaller, conversely, generated site is bigger. Graph 1nextpage pursues 2 graphs a 1 elephant after pursue for gray scale of manuscript translate into and magnifying element lattice area, every small pane states an elephant element of digital image is nodded, set so that the average elephantine element of this area is A. Graph 2 good for the design site stencil, its size and break up the rectangular area that give to agree completely, the number in every small pane represented a site grow ordinal, by the graph knowable this site stencil can mirror 13+1 gray scale grade. If A value satisfies value of 7 class gray scale, so the screen dot shape that this area map becomes is: Graph 3 graphs 4 it is namely, in corresponding site pattern plate corresponding position, always be less than the position that is equal to value of primitive image gray scale to exposure. Grow according to this kind of site the rule, can build the site of different measurement. Nextpage4 sums net point of view to the influence of visual effect we look to single site is arranged and be opposite when it is enough and coarse first the visual effect of person eye. It is when the angle that increase a net 0 when, person eye can see each site platoon clear embark on a journey; May see better when the angle that increase a net is 15 degrees clear; When the angle that increase a net is 45 degrees, the disorder that person head causes makes person eye becomes ambiguous to the impression of travel, the place still can look so that see, but the line looks not to come out, this is why the account that the site of black and white image always sets in 45 degrees. Think normally, the 45 degrees angle that increase a net is the most comfortable to the vision, performance is steady and not inflexible, it is first-rate expression angle; 15 degrees are mixed 75 degrees of take second place, although they are not quite stable, but not inflexible; 0 degrees of vision effects with 90 degrees are the poorest, although also be stabilized, but the most inflexible also. 5 45 spends the visual effect with increase a net good to achieve, must increase a net to magnifying the image after undertakes with proper point of view, the gray scale order and degree that site pattern plate can reflect also cannot pass low, can appear on output image otherwise gray scale contour line. 45 degrees impose the implementation measure of net algorithm: (begin consideration from the top left corner of image) coordinate defines as follows: Graph 5 implementation measure: Step_1: ? Destroy of  of bail fall forward 0 Dan? the normalization for implementation site pattern plate, we design pattern plate the circle that is R into a radius, if the graph is shown 5 times, adding the definition in net coordinate XOY, its maths equation is: The case numerical value of this equation expressed current coordinate (X, y) the length that is apart from the centre of a circle. Because gray scale image is formed by 256 grade, we are the radius R divide into equal parts of pattern plate circle 256 class, so function F (X, y) the value mirrorred coordinate secondhand (X, y) the gray scale grade of place; Step_2: ? Zuo of  of Feng of cut down of model ㄏ scepter, initialization is 0; Step_3: ? Zuo of  of Quan  Feng exceeds image following group, turn Step_10; Step_4: ? Zuo of  of Lin of Gao of model ㄏ scepter, initialization is 0; Step_5: ? Zuo of  of Quan  Lin exceeds image right bound, turn Step_9; Step_6: ? ║ of Cou of  of  scepter cut down, v) it is origin with image top left corner, anticlockwise rotate 45 degrees get new coordinate (X, y) ; Coordinate rotates formulary: Sin45; of × of Cos45 - U of × of Sin45; Y = V of × of Cos45 + V of × of X = U will be new coordinate (X, y) era enters the F of normalization site function in Step_1 (X, y) , beg according to case numerical value go out to resemble element coordinate in coordinate XOY (U, v) the Grade of gray scale grade of place; Step_7: ? ║ of Cou of  of cut down of scepter of the first month, v) actual gray scale is worth the manuscript of place to undertake comparative with Grade, if value of actual gray scale is more than manuscript,be equal to Grade, should deal with so for white, otherwise buy is black; Step_8:V+ + , turn Step_5; Step_9:U+ + , turn Step_3; Step_10: ? Does oily  vase umbrella?Step_11: ? Oily  Shan is able to bear or endure Zhu of cangue of low slash  carries  of cangue Da  ? of drop of Piao of the scepter austral astounded of You scepter an ancient nationality in China or 0, corresponding motion dominates the sculpture scanning data of card. The implementation laser engraving tool with this can convenient plan is opposite 6 conclusion the direct output that colour pursues, need not undertake detail rest and reorganization to manuscript, if use PhotoShop,undertake Gou Bian to manuscript, go color, local brightness is adjusted wait for complex processing. The effect after increasing a net acceded the characteristic of traditional site, the output means that the site pursues ensured the output quality of image. CNC Milling CNC Machining