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Journal articles on the topic 'Color printing Image processing Color printing'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Al-saleem, Riyadh M., Baraa M. Al-Hilali, and Izz K. Abboud. "Mathematical Representation of Color Spaces and Its Role in Communication Systems." Journal of Applied Mathematics 2020 (May 18, 2020): 1–7. http://dx.doi.org/10.1155/2020/4640175.

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In this research, the color system was analyzed according to the International Lighting Commission (CIE) standard by studying the theoretical aspect of the general color system according to the latest communication theories of the visual image supported by mathematical equations and illustrations supporting the relevant hypotheses and then a comparison of evolution. There is an enormous use in color spaces and systems according to their own use, where the use of colors has become in various areas including television systems; computer systems; industry and product colors; printing of all kinds

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Li, Bing Fang. "Study on Client-Side Color Reproduction Methods of Network Printing." Applied Mechanics and Materials 182-183 (June 2012): 1967–71. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.1967.

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Because of the current network printing, exists the problem about the long print cycle, expensive and big chromatic aberration of the client display color reproduction. The article gives a method to gets the printing reproduction data and gets WYSIWYG about network printing client desktop displays color. On the basis of client's desktop display color, with the help of network printers printing technology, image processing software, visual observation of network clients and network form, the client desktop color display data is gotten. By the software reduction calculation, the method implement

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Aizu, Masao, Osamu Nakagawa, and Mikio Takagi. "Color printing image coding using vector quantization." Journal of Visual Communication and Image Representation 2, no. 3 (1991): 281–88. http://dx.doi.org/10.1016/1047-3203(91)90028-e.

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Zhang, Ye, Qiu Xie, and Canlin Zhang. "Key Algorithms for Segmentation of Copperplate Printing Image Based on Deep Learning." Mobile Information Systems 2021 (May 25, 2021): 1–10. http://dx.doi.org/10.1155/2021/9940801.

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As a branch of the field of machine learning, deep learning technology is abrupt in various computer vision tasks with its powerful functional learning functions. The deep learning method can extract the required features from the original data and dynamically adjust and update the parameters of the neural network through the backpropagation algorithm so as to achieve the purpose of automatically learning features. Compared with the method of extracting features manually, the recognition accuracy is improved, and it can be used for the segmentation of copperplate printing images. This article

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Sang, Ruijuan, Adam John Manley, Zhihui Wu, and Xinhao Feng. "Digital 3D Wood Texture: UV-Curable Inkjet Printing on Board Surface." Coatings 10, no. 12 (2020): 1144. http://dx.doi.org/10.3390/coatings10121144.

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Natural wood textures are appreciated in most forest products industries for their appealing visual characteristics including grain and color, but also their fine surface tactile sensation. The following presents an ultraviolet (UV)-curable inkjet technology printing 3D wood texture on wood-based substrate by image processing and surface treatment. The UV printing was created from scanned digital images of a real wood surface and processed in graphics software. The images were converted to grayscale graphics by selecting color range and setting the parameter of fuzziness. The grayscale images

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Chen, De Yu, Yue Qin Hang, Xiao Cheng Su, and Xue Fang Zhu. "Application of Digital Image Processing and Recognition Technology on Screen Printing." Advanced Materials Research 429 (January 2012): 116–20. http://dx.doi.org/10.4028/www.scientific.net/amr.429.116.

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The digital image processing and recognition technology is applied to the detection of the print quality of screen printing, which is designed to implement the application system of some functions in screen printing, such as the acquisition of multiple printing images, the feature extraction and the matching to the quality control processing. In the RG Chromaticity space, the template matching method is used to design the relevant algorithms and realize fast real-time detection of some problems related to the image dislocation, leakage India, infiltration excess and uneven quality color. Havin

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Zhao, Xiao Mei, and Bing Xie. "Halftone Image Processing Method of Security Based on Moiré Effect." Applied Mechanics and Materials 200 (October 2012): 712–18. http://dx.doi.org/10.4028/www.scientific.net/amm.200.712.

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A halftone image processing method of security based on moiré effect is developed in this paper. On the theoretical basis of moiré effect and information hiding in halftone images, some images and text information are hidden in the pre-copy color images, and then the images are output by means of laser printers and traditional printing proof. The experimental results show that when the specific detecting film is in the right angle and position, the hidden graphic information can be clearly observed. This security method is of better effect, lower production costs, which can be widely used in p

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Liu, Shi Wei, Zhen Liu, and Qing Bao Wei. "A Wavelet-Based Digital Watermarking Algorithm for Packaging Security." Applied Mechanics and Materials 200 (October 2012): 660–65. http://dx.doi.org/10.4028/www.scientific.net/amm.200.660.

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In this paper, a wavelet-based digital watermark algorithm for packaging security is proposed. In the algorithm, digital watermark is embedded in the color image CMYK mode, the method based on the discrete wavelet transform (DWT) can point to point semi-adaptive repeated embed digital watermark. Digital watermark that embedded in a color image can be extracted after printing, scanning and pre-processing the color image. The experimental results show that watermark extraction’s effect is acceptable, so the algorithm can achieve the purpose of the anti-counterfeiting for packaging printing. In a

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Liu, Shu Feng, and Shao Hong Shen. "Application of Object-Based Image Processing Technique in Printing Defect Online Detection." Applied Mechanics and Materials 731 (January 2015): 210–13. http://dx.doi.org/10.4028/www.scientific.net/amm.731.210.

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In this paper ,a color printing defect automatic online detection method based on digital image processing technique is proposed. The main idea of this method is comparison of defect product and template and it makes up of following key models. Firstly, multi-scale segmentation is applied to composed image which is overlaid by detecting product and template image. Secondly, an automatic region similarity analysis calculation is taken to segmentation obtained in multi-scale segmentation. The color difference between detecting product and template can be calculated accurately. Thirdly, defect de

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Jing, Jun Feng, Peng Fei Li, and Jing Wang. "The Registration Detection System of Rotary Screen Printing Machine Based on the Machine Vision Technology." Applied Mechanics and Materials 29-32 (August 2010): 896–900. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.896.

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With the development of the computer and the digital image processing technology, application of machine vision technology to make online detection research has been gradually developed, so the machine vision technology has been introduced into the registration detection of rotary screen printing, in order to enhance the accuracy and speed of the registration error’s detection, that is a very significant research topic. Firstly, general planning about the rotary screen printing machine registration detection system has been designed. In addition, texture noise of printing picture has been anal

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Kotera, Hiroaki, and Katsuhiro Kanamori. "Fundamentals and Application of Color Image Processing Technology: (5) Color Reproduction in Printing and Hardcopy." Journal of the Institute of Television Engineers of Japan 47, no. 5 (1993): 753–64. http://dx.doi.org/10.3169/itej1978.47.753.

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Wang, Yin, Baekdu Choi, Davi He, Zillion Lin, George Chiu, and Jan Allebach. "Developing an Inkjet Printer I: RGB Image to CMY Ink Amounts - Image Processing and Color Management." Electronic Imaging 2020, no. 15 (2020): 350–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.15.color-282.

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In this paper, we will introduce a novel low-cost, small size, portable nail printer. The usage of this system is to print any desired pattern on a finger nail in just a few minutes. The detailed pre-processing procedures will be described in this paper. These include image processing to find the correct printing zone, and color management to match the patterns’ color. In each phase, a novel algorithm will be introduced to refine the result. The paper will state the mathematical principles behind each phase, and show the experimental results, which illustrate the algorithms’ capabilities to ha

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He, Xi Zhong, Yu Zhang, and Li Ping Xie. "A Preliminary Study on Artistic Transcending of Printing Dots." Applied Mechanics and Materials 262 (December 2012): 247–52. http://dx.doi.org/10.4028/www.scientific.net/amm.262.247.

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This article discusses diversifying graphic design elements based on existing print reproduction principles and technology. The authors studied color processing techniques derived from print reproduction principles and assorted image elements derived from restrains in printing technology. The authors also discussed disassembling and restoring procedures during image transformation and reproduction to explain and explore the different styles and compositions of art forms that carry profound information. The visual impact coming from pixel’s form, arrangement, color, direction, and other factors

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Lafon, Dominique, and Tahiana Ramananantoandro. "COLOR IMAGES." Image Analysis & Stereology 21, no. 4 (2011): 61. http://dx.doi.org/10.5566/ias.v21.ps61-s74.

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The goal of this article is to present specific capabilities and limitations of the use of color digital images in a characterization process. The whole process is investigated, from the acquisition of digital color images to the analysis of the information relevant to various applications in the field of material characterization. A digital color image can be considered as a matrix of pixels with values expressed in a vector-space (commonly 3 dimensional space) whose specificity, compared to grey-scale images, is to ensure a coding and a representation of the output image (visualisation print

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Sitnik, Robert, Grzegorz Mączkowski, Jakub Krzesłowski, and Tomasz Gadziński. "3DMADMAC|SPECTRAL: Hardware and Software Solution for Integrated Digitization of 3D Shape, Multispectral Color and BRDF for Cultural Heritage Documentation." Geoinformatics FCE CTU 6 (December 21, 2011): 330–37. http://dx.doi.org/10.14311/gi.6.41.

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In this article a new 3D measurement system along with the study on 3D printing technology is presented from the perspective of quality of reproduction. In the first part of the paper the 3DMADMAC|SPECTRAL system which integrates 3D shape with additional color and angular reflectance measurement capabilities is presented (see Figure 1). The shape measurement system is based on structured light projection with the use of a DLP projector. The 3D shape measurement method is based on sinusoidal fringes and Gray codes projection. Color is being measured using multispectral images with a set of inte

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16

Liang, Qiyue, Min Zhao, George T. C. Chiu, and Jan P. Allebach. "Design and Fabrication of Microfluidics Paper-Based Devices for Contaminant Detection Using aWax Printer." Electronic Imaging 2021, no. 16 (2021): 339–1. http://dx.doi.org/10.2352/issn.2470-1173.2021.16.color-339.

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In this paper, we introduce an eight-channel paper-based microfluidic device that aims to detect multiple chemicals at once. The microfluidic device we propose is fabricated by wax printing on filter paper, which is trouble-free to handle, low cost, and easy to fabricate. As a hydrophobic material, wax (solid ink) defines the hydrophilic channels for testing. By using image processing techniques, we analyze the width change caused by heating of wax strokes and wax channels, which is a necessary step in the wax printing fabrications. In the same way, we test the minimum width of a channel that

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Yang, Yi, Eric Maggard, Yousun Bang, Minki Cho, and Jan P. Allebach. "Banding defect detection and image quality classification." Electronic Imaging 2021, no. 16 (2021): 245–1. http://dx.doi.org/10.2352/issn.2470-1173.2021.16.color-245.

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Banding has been regarded as one of the most severe defects affecting the overall image quality in the printing industry. There has been a lot of research on it, but most of them focused on uniform pages or specific test images. Aiming at detecting banding on customer’s content pages, this paper proposes a banding processing pipeline that can automatically detect banding, identify periodic and isolated banding, and estimate the periodic interval. In addition, based on the detected banding characteristics, the pipeline predicts the overall quality of printed customer’s content pages and obtains

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18

Jiang, Yong Wen, Mao Hai Lin, and Yun Hui Luo. "Application Research on Image Color Gamut Visualization Using Volume Rendering Method." Applied Mechanics and Materials 262 (December 2012): 27–30. http://dx.doi.org/10.4028/www.scientific.net/amm.262.27.

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Image-dependent color gamut mapping can avoid over compression of the image gamut, so it is able to protect the accuracy in color transfer. The premise of realizing image-dependent color gamut mapping is to determine the image color gamut boundary quickly. Now several techniques for the computation of gamut boundary have been presented in the past, e.g. the convex hull algorithm and the segment maxima algorithm. However, the printing image tend to have a higher resolution, it can be very slow and less efficient while using these methods to determine the image gamut boundary. In this article we

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Xiu, Xiao Jie, and Hong Jun Tang. "Automatic Block Detection for Ink Jet Head." Applied Mechanics and Materials 310 (February 2013): 424–27. http://dx.doi.org/10.4028/www.scientific.net/amm.310.424.

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Inkjet printing technology has been used in several areas and the inkjet printer uses different inks, for example oil ink for cloth printing, color glaze ink for ceramic printing and so on. The printer ink jet head uses these inks are blocked frequently. An automatic block detection system has been presented in this paper. The system provides droplet deposition apparatus comprising of: a fluid chamber; a nozzle in fluid communication with the chamber for ejection of fluid; a monitor; CCD camera; image capturing and processing module. The system has applied to ink jet and droplet image detectio

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20

Jia, Qi, Xu Liang Lv, Wei Dong Xu, Jiang Hua Hu, and Xian Hui Rong. "Comparative Experiment of Color Reproduction Methods." Advanced Materials Research 1051 (October 2014): 967–70. http://dx.doi.org/10.4028/www.scientific.net/amr.1051.967.

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Digital camera which has the advantage of real-time image transferring and easily processing is more and more widely used in the packaging and printing industry with the rapid development of high-tech electronics industry. However, the color in digital camera is not accurate which affect the application. To minimize the color difference between the color in the digital camera and the real color, the color reproduction methods is developing. The field comparative experiment is carried out to compare the performance of color reproduction methods, such as polynomial regression algorithm in differ

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Wang, Huan Mei, Guang Xue Chen, and Wen Bo Zhang. "3D Printing of Topographic Map Based on UV Ink-Jet Printer." Applied Mechanics and Materials 469 (November 2013): 309–12. http://dx.doi.org/10.4028/www.scientific.net/amm.469.309.

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Traditional maps have the characteristics of high and low terrain, using the method of contour. Although contour map can express relief form, the stereo sense is not intuitive. In this paper, according to the characteristics of UV inkjet printer, the designed test pattern was printed, ink layer thickness of different colors was measured to establish a quantitative relationship between ink thickness and ink layers. The contour map of Taiwan was chosen, in graphics processing software, to extract the contour vector image according to its elevation. According to the relationship between ink thick

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Chen, Li, and Wan You Tang. "Research on Image Detection Technology of Printing Based on Dynamic Partitioning Method." Applied Mechanics and Materials 469 (November 2013): 377–82. http://dx.doi.org/10.4028/www.scientific.net/amm.469.377.

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Nowadays, many domestic printing enterprises still rely on artificial visual means to weed out waste, labor-intensive, time-consuming, subjective factors serious influence, the test results not being uniform, especially with the improvement of printing speed, gradually unable to meet the needs of the production. In order to solve the problems in the conventional assay and promote the development of China's printing industry productivity, there is an urgent need to develop the quality of printing online full screen detection system, with the rapid development of modern printing technology, the

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Mokshina, N. Ya, V. V. Khripushin, and M. S. Shcherbakova. "Colorometric study of polyamide-12 powder aging." Industrial laboratory. Diagnostics of materials 86, no. 10 (2020): 31–35. http://dx.doi.org/10.26896/1028-6861-2020-86-10-31-35.

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The key point of 3D printing by selective laser sintering is the necessity of complete filling of the working chamber of the printer with a powder material. Since the powder is not completely consumed during the printing process, 25 – 30 wt.% of secondary (unused in the previous cycle) power is added to the primary material in each cycle. Repeated recirculation leads to degradation of the properties of the working powder mixture and increases the probability of rejects. We present the results of a colorimetric study of aging of polyamide-12 powder used in 3D printing by the method of selective

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Lu, Jianfeng, Zhiwen Wang, Li Li, Ching-Chun Chang, Ting Luo, and Wei Gu. "Towards High-Resolution Copy-Evident Ceramic Tiles: A Deep Learning Framework for Halftoning and Watermarking." Electronics 10, no. 15 (2021): 1833. http://dx.doi.org/10.3390/electronics10151833.

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Ceramic art is essential in interior design and decoration, and making exquisite ceramic tiles imposes strict requirements for inkjet printing technology. High-resolution ceramic tiles are often produced through inkjet printing, in which the input images are converted into a halftone format. However, traditional binary halftoning techniques cannot produce high-resolution images for the ensuing printing process. Given that the processes of inkjet printing and high-temperature firing of ceramic tiles are a highly complex nonlinear system, and existing halftoning methods pose intractable problems

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Yang, Bo, Bang Gui He, and Yu Chen. "Research on Online Visual Inspection System for Multi-Feature Trademark Defect." Applied Mechanics and Materials 397-400 (September 2013): 2322–25. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.2322.

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Modern printing industry detective techniques, which have transferred from traditional single discrete manual operation into line detection based on machine vision. The line detection research under the highly automated process requirements, which is based on color graphics, gravure text, high-speed stamping and laser hologram hot stamping technology, is the multi-feature defect detection and recognition. By CDD study linear measurement techniques and computer vision technology, the research built the visual inspection platform, and design detection scheme combined with the specific requiremen

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Guo, Jing-Ming, and Sankarasrinivasan Seshathiri. "Watermarking in dot-diffusion halftones using adaptive class-matrix and error diffusion." ECTI Transactions on Computer and Information Technology (ECTI-CIT) 13, no. 1 (2019): 1–8. http://dx.doi.org/10.37936/ecti-cit.2019131.189387.

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Digital halftoning deals with transforming a gray or color image into its binary version which is useful in printing applications. Dot diffusion is one of the prominent halftone methods which can yield superior image quality with parallel processing capabilities. In this paper, a rapid watermarking algorithm is proposed for dot-diffusion halftone images using adaptive class-matrix selection and modified error diffusion kernels. To process the image using an adaptive class matrix, the processing order of the class matrix is reversed and transposed, and for error diffusion the coefficients are r

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Zhang, Runzhe, Yi Yang, Eric Maggard, Yousun Bang, Minki Cho, and Jan Allebach. "A comprehensive system for analyzing the presence of print quality defects." Electronic Imaging 2020, no. 9 (2020): 314–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.9.iqsp-314.

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Print quality (PQ) is most important in the printing industry. It plays a role in users’ satisfaction with their products. Page quality will be degraded when there are print quality defects on the printed page, which could be caused by the electrophotographic printer (EP) process and associated print mechanism. To identify the print quality issue, customers have to consult a printer user manual or contact customer service to describe the problems. In this paper, we propose a comprehensive system to analyze the printed page automatically and extract the important defect features to determine th

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Sgherri, Elisa, and Giovanni Anzani. "The Fortress of Riolo Terme, near Ravenna: digital survey and 3D printing for cultural dissemination." Studies in Digital Heritage 1, no. 2 (2017): 750–68. http://dx.doi.org/10.14434/sdh.v1i2.23228.

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In this work, initially developed as a thesis project, it has been studied the management of the different information methods, derived from the 3D laser scanner survey, of the Fortress of Riolo Terme, near Ravenna, Italy. After studying the building and its history this type of survey has been chosen because of its fast acquisition of three-dimensional data, with the advantage of a level of details and a resolution impossible to be reached by other methods. The geometrical survey of the whole fortress and its surroundings has been enriched by the gathering of color information: taking a speci

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Yue, Genevieve. "The China Girl on the Margins of Film." October 153 (July 2015): 96–116. http://dx.doi.org/10.1162/octo_a_00228.

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The “China Girl” has appeared in more films than any actress, but she is almost never seen. Used in industrial film laboratories since the late 1920s, this image-nearly always a woman positioned next to color swatches and patches of white, gray, and black—is clipped to the leader of a film reel and used throughout the processing, developing, and printing of photochemical film to determine the desired exposure, density, and ideal appearance of the human body. This article addresses the China Girl's essential but often overlooked role in film history, specifically as it pertains to questions of

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Aulia, Suci, Bagus Budhi L., Angga Rusdinar, and Yuyun Siti R. "Geometric and Grayscale Template Matching for Saudi Arabian Riyal Paper Currency Recognition." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 6 (2018): 4230. http://dx.doi.org/10.11591/ijece.v8i6.pp4230-4238.

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<p>Detecting the authenticity of paper currencies using automated based Paper Currency Recognition (PCR) with image processing techniques was still a hot topic of discussion, due to the circulation of counterfeit currency that was still overwhelming in some countries. There was a downside along with this advancement in technology in the field of color printing, duplication, and scanning, because it was became one of the supporting factors of the increasing crime rate in production of counterfeit money. Our system has performed a PCR approach based on image processing techniques. In this

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Трапезникова, О. В. "ANALYSIS OF METHODS FOR CONTROLLING THE ACCURACY OF PAINT MATCHING." Южно-Сибирский научный вестник, no. 3(37) (June 30, 2021): 103–8. http://dx.doi.org/10.25699/sssb.2021.37.3.001.

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К числу основных контролируемых показателей, характеризующих качество многокрасочного изображения на печатном изделии, относится совмещение красок. Совмещение красок на оттиске представляет собой технологическую операцию, состоящую в нанесении на запечатываемую подложку отдельных печатных красок для формирования совмещенного многокрасочного изображения на печатном изделии в соответствии с требованиями его целостностности и информативности. Контроль и оценку совмещения красок на оттиске осуществляют различными методами и проводят по приводочным крестам, тест-объектам или по полученному изображе

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Luo, J., and Z. Zhang. "Automatic colour printing inspection by image processing." Journal of Materials Processing Technology 139, no. 1-3 (2003): 373–78. http://dx.doi.org/10.1016/s0924-0136(03)00534-x.

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Xiaoan, Sun, Chen Shuzhen, Wang Yongchang, and Shen Qiang. "Color image computer desktop printing system." Wuhan University Journal of Natural Sciences 1, no. 2 (1996): 213–16. http://dx.doi.org/10.1007/bf02901230.

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Yin, Feng Ling, and Bing Quan Huo. "Image Transformation for Digital Printing Machine." Applied Mechanics and Materials 401-403 (September 2013): 180–83. http://dx.doi.org/10.4028/www.scientific.net/amm.401-403.180.

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A computer monitor through mixing shades of red, green, and blue show pictures, that is named RGB color model. CMYK use the different color reproduction technologies and properties. A CMYK printer instead uses light-absorbing cyan, magenta and yellow ink. This paper discusses the conversion between RGB and CMKY color model. OpenCV was used for the verification of the effectiveness of the algorithm is proved to be feasible.

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Saber, E., S. Dianat, L. K. Mestha, and P. Y. Li. "DSP utilization in digital color printing." IEEE Signal Processing Magazine 22, no. 4 (2005): 104–9. http://dx.doi.org/10.1109/msp.2005.1458303.

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Tian, Jieni, Jiangping Yuan, Hua Li, Danyang Yao, and Guangxue Chen. "Advanced Surface Color Quality Assessment in Paper-Based Full-Color 3D Printing." Materials 14, no. 4 (2021): 736. http://dx.doi.org/10.3390/ma14040736.

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Color 3D printing allows for 3D-printed parts to represent 3D objects more realistically, but its surface color quality evaluation lacks comprehensive objective verification considering printing materials. In this study, a unique test model was designed and printed using eco-friendly and vivid paper-based full-color 3D printing as an example. By measuring the chromaticity, roughness, glossiness, and whiteness properties of 3D-printed surfaces and by acquiring images of their main viewing surfaces, this work skillfully explores the correlation between the color representation of a paper-based 3

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Yuan, Jiangping, Jieni Tian, Chen Chen, and Guangxue Chen. "Experimental Investigation of Color Reproduction Quality of Color 3D Printing Based on Colored Layer Features." Molecules 25, no. 12 (2020): 2909. http://dx.doi.org/10.3390/molecules25122909.

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Color three-dimensional (3D) printing is an advanced 3D printing technique for reproducing colorful 3D objects, but it still has color accuracy issues. Plastic-based color 3D printing is a common color 3D printing process, and most factors affecting its color reproduction quality have been studied from printing materials to parameters in the fixed consecutive layers. In this work, and combined with variable stair thickness, the colored layer sequence in sliced layers of a specific 3D color test chart is deliberately changed to test the effects of colored layer features on its final color repro

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Si, Zhan Jun, and Yu Li. "Study on the Color Rendering Effect of High Glossy Color Inkjet Paper." Applied Mechanics and Materials 469 (November 2013): 286–91. http://dx.doi.org/10.4028/www.scientific.net/amm.469.286.

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The material for ink-jet printing is very extensive, but now paper media is the most commonly used one, because the image of glossy ink jet paper printed clear and bright, shiny, light fastness and excellent color fastness in the aspects of indoor display packaging. Therefore, this paper combined the traditional test method and modern computer image analysis technology together, to formation the evaluation system of color rendering performance on a suitable color ink jet paper, in order to qualitative and quantitative evaluate to paper printing color rendering.This paper mainly used six kinds

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Zhong, Yun Fei, Lu Jing Fu, and Tao Zhou. "Based on Median Pyramid Transform of the Color Image Inverse Halftoning." Applied Mechanics and Materials 200 (October 2012): 724–29. http://dx.doi.org/10.4028/www.scientific.net/amm.200.724.

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In order to eliminate the halftone noise and preserve the fine edge structure features of the color printing image, a method of color printing scanned image inverse halftoning based on median pyramid transform is proposed. Firstly the scanned images were decomposed by the transform in one scale. Then the noise distribution characteristics with approximations image and details image were analyzed and median filter was applied to denoise for details image. Then an inverse halftoning image was reconstructed from the cleaned details image and approximations image. Experimental results demonstrate

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Wei, Xian Fu, Shao Hong Gao, Bei Qing Huang, and Wan Zhang. "Research on the Imaging Mechanism of Additive Color of Fluorescent Ink-Jet Ink." Applied Mechanics and Materials 262 (December 2012): 22–26. http://dx.doi.org/10.4028/www.scientific.net/amm.262.22.

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The formation of color images are generally divided into two methods: additive color imaging based on color light mixture and subtractive color imaging based on colorant mixture. Additive color imaging refers to the color image mixed by a certain percentage of the three primary color lights: red (R), green (G) and blue (B), such as LED display, cell phone screens, digital cameras and others. Subtractive color imaging refers to the color image generated by light mixture reflected by each colorant, due to some light of different wavelength in the white light separately absorbed by certain colora

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Chen, Qi Feng, Guang Xue Chen, Bao Ling Tang, and Jing Lei Tai. "Study on the Printability of Coated Paper on High-Fidelity Digital Printing." Applied Mechanics and Materials 262 (December 2012): 410–13. http://dx.doi.org/10.4028/www.scientific.net/amm.262.410.

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The impact of coated paper printability for image quality on the high-fidelity digital printing was studied in this paper. Compared with the traditional printing technology, high-fidelity digital printing technology is more likely to expand the color gamut, maintain the original tone linear and produce vivid image. The performance of coated paper to a large extent determines the image quality. In order to get high-quality printed matters, the mechanism of the coated paper printability influencing on the performance on high-fidelity digital printing is need to be researched in-depth. The printa

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Wang, Cai Yin, Chao Li, and Li Jiang Huo. "A Security Printing Method by Black Ink Hiding Infrared Image." Applied Mechanics and Materials 200 (October 2012): 730–33. http://dx.doi.org/10.4028/www.scientific.net/amm.200.730.

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In the multi-color printing, the four inks used are cyan, magenta, yellow and black, which have different response in the near infrared spectral area, in which the black with CMK color inks have no response while the black with K color ink has a good response. But two kinds of black are both visible and equivalent under daylight. Based on this principle, this paper introduces a new method of security printing by K ink hiding infrared image. To hide infrared image in source image, the Yule-Nielsen modified spectral Neugebauer equations is employed, the Yule-Nielsen parameter is found based on a

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Eshbaev, Ulbosin, Akbarjon Nishonov, and Aziz Saodatov. "Development of mathematical models of print quality by Box-Wilson." E3S Web of Conferences 304 (2021): 03023. http://dx.doi.org/10.1051/e3sconf/202130403023.

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The transfer coefficient of ink to the printed material was determined by comparing the mass of the printed material before and after printing. The specifics of the interaction of the printed surface with the surface of the paint layer and the influence of technological factors on the graphic distortion of the image when printing on paper also affect the gradation characteristic of the image. This article states about static modeling, preliminary analysis of the color perception of offset printing on papers including synthetic polymers. On the basis of the model of color perception obtained as

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Liu, H. L., Bing Zhang, Tian Gao, Xijun Wu, Fayi Cui, and Wei Xu. "3D chiral color prints for anti-counterfeiting." Nanoscale 11, no. 12 (2019): 5506–11. http://dx.doi.org/10.1039/c8nr09975h.

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Chen, Hai Sheng, Bao Lin Tang, Guang Xue Chen, and Shuang Shuang Wen. "Data Hiding Based on Noise-Balanced Error Diffusion in Color Image." Applied Mechanics and Materials 182-183 (June 2012): 1900–1903. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.1900.

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In the publishing and printing applications, hidden data is embedded into images for copyright protection and ownership generally. In this paper, a reasonable data hiding method based on noise-balanced error diffusion (NBEDF) is proposed, which is applied in color halftone image. Color image is firstly separated into grayscale images from RGB color space to CMYK color space. Secondly, Floyd-Steinberg error diffusion operator is used, and halftone images will be obtained. Finally,through NBEDF, hidden data is embedded in the halftone image which contains the largest amount of information. The e

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Li, Xiao Zhou, Guang Xue Chen, Chun Jiang Jia, Lei Zhao, and Ai Xu. "Research on Application of iCAM in Printing Image Reproduction." Applied Mechanics and Materials 262 (December 2012): 48–52. http://dx.doi.org/10.4028/www.scientific.net/amm.262.48.

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The properties of iCAM appearance model including the viewing conditions calculation, chroma adaptation transformation, IPT properties computation and perception correlation calculation was studied according to the researches studied in the paper. iCAM color appearance model was proposed as the PCS in this paper and the effects on printing image reproduction and evaluation were studied. The conclusions showed that setting iCAM as the PCS had an important role in improving color conversion accuracy and the high fidelity reproduction quality of printing image.

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Tavanai, H., M. Palhang, S. A. Hosseini, and H. Mollahosseini. "Detection of color displacement in fabric printing through image analysis." Journal of the Textile Institute 97, no. 4 (2006): 333–40. http://dx.doi.org/10.1533/joti.2005.0148.

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Li, Zhi Jian, and Qing Jun Meng. "Research on the Color-Difference Evaluation of Food Package Printing Matter Based on the Human Visual Characteristics." Applied Mechanics and Materials 469 (November 2013): 278–81. http://dx.doi.org/10.4028/www.scientific.net/amm.469.278.

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In order to improve for the inadequacy of traditional evaluation methods, this paper researched a kind of color-difference evaluation method for the food package printing matter based on human visual characteristics. Research method is as follow: the reference image and the target image were transformed to the opposite color space, and were dealt with the human eye Contrast Sensitive Function (CSF) spatial filter. The modified three opposite color component of images were transformed into the CIE XYZ space image after CSF spatial filtering processed; finally the image was transformed to the CI

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Chen, Wen Ge, and Ya Xin Xian. "Study on Digital Image Color Separation Based on Quality Controlling." Applied Mechanics and Materials 198-199 (September 2012): 300–303. http://dx.doi.org/10.4028/www.scientific.net/amm.198-199.300.

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In practical production, there are many factors can affect the printing copy quality. This thesis mainly research through Photoshop software installed image color parameter, again through experiments confirm the best color parameter and eventually get the best color separation effect to improve reproductive quality.

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Yuan, Jiangping, Chen Chen, Danyang Yao, and Guangxue Chen. "3D Printing of Oil Paintings Based on Material Jetting and Its Reduction of Staircase Effect." Polymers 12, no. 11 (2020): 2536. http://dx.doi.org/10.3390/polym12112536.

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Material jetting is a high-precision and fast 3D printing technique for color 3D objects reproduction, but it also suffers from color accuracy and jagged issues. The UV inks jetting processes based on the polymer jetting principle have been studied from printing materials regarding the parameters in the default layer order, which is prone to staircase effects. In this work, utilizing the Mimaki UV inks jetting system with a variable layer thickness, a new framework to print a photogrammetry-based oil painting 3D model has been proposed with the tunable coloring layer sequence to improve the ja

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