Academic literature on the topic 'Halftone Dot'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Halftone Dot.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Halftone Dot"

1

Pjanic, P., L. Yang, A. Teleman, and R. D. Hersch. "Angular Color Prediction Model for Anisotropic Halftone Prints on a Metallic Substrate." Color and Imaging Conference 2019, no. 1 (2019): 159–69. http://dx.doi.org/10.2352/j.imagingsci.technol.2019.63.4.040407.

Full text
Abstract:
Under specular reflection, non-isotropic halftones such as line halftones printed on an ink-receiving plastic layer superposed with a metallic layer change their colors upon in-plane rotation of the print. This color change is due to the orientation-dependent optical dot gain of the halftone. A strong dot gain occurs when the incident light is perpendicular to the halftone line structure. A color prediction model is proposed which predicts under specular reflection the color of cyan, magenta and yellow line halftones as a function of the azimuthal rotation angle, the incident angle and the line frequency. The model is calibrated by measuring 17 reflectances at the (25° : 25°) measurement geometry, with the incident light parallel to the halftone lines. The model has been tested for several azimuthal rotation and incident viewing angles, each time for 125 different cyan, magenta and yellow ink surface coverages. The obtained prediction accuracies are between ΔE94 = 3.5 and ΔE94 = 7.
APA, Harvard, Vancouver, ISO, and other styles
2

Mr., Sanjeev Kumar*1 Prof. (Dr.) Anjan Kumar Baral2 &. Ms. Monika3. "STUDY OF DOT GAIN IN DIFFERENT DOT SHAPES OF HALFTONE ON PRINT QUALITY BASED ON DRY TONER ELECTROPHOTOGRAPHY DIGITAL PRESS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 6, no. 2 (2019): 17–22. https://doi.org/10.5281/zenodo.2557482.

Full text
Abstract:
Electrophotography is a non-impact printing process. Printing of an image in continuous tone is not possible by printing machine. Therefore, image has to break in halftone dot to print through any printing process. Digital printing is not exceptional. There are different halftone dot shapes available like square, elliptical, diamond etc. This leads a curiosity in mind to study the effect of different dot shape on print quality. In this paper, we considered the impact of various dot shapes of halftone on print quality (dot gain) in dry toner electro photography printing process in which different halftone shapes are used for printing. The sheets were printed with different halftone dots (diamond, elliptical, square). Dot gain is measured at different locations of different halftone dot shapes. The collected data is represented in a meaningful way so that clear difference can be seen.
APA, Harvard, Vancouver, ISO, and other styles
3

Mr., Amit Kumar*1 Ms. Monika2 Mr. Sanjeev Kumar3. "STUDY OF DOT GAIN IN DIFFERENT DOT SHAPES (LINE AND ROUND) OF HALFTONE ON PRINT QUALITY BASED ON DRY TONER ELECTROPHOTOGRAPHY DIGITAL PRESS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 6, no. 2 (2019): 29–34. https://doi.org/10.5281/zenodo.2557496.

Full text
Abstract:
Electrophotography is a NIP (Non-Impact Printing) process. This printing process is most commonly used printing process in now a day. The electrophotography printing is based on the halftones. These halftones are available in different dots shapes like Diamond, Elliptical, Square, Line, Round etc. In this research paper, we compare the print quality bases on different dot shapes like Line and Round. The sheets were printed with different halftone dots like Line and Round with the help of dry electrophotography printing process.
APA, Harvard, Vancouver, ISO, and other styles
4

Choi, Baekdu, Daulet Kenzhebalin, Sige Hu, et al. "Developing an inkjet printer II : CMY ink amounts to multibit CMY halftones." Electronic Imaging 2020, no. 15 (2020): 351–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.15.color-350.

Full text
Abstract:
In this paper, we propose a novel error diffusion halftoning algorithm for the conversion of cyan, magenta and yellow (CMY) ink amounts to a multi-bit halftone image. We adopt the idea of allowing multiple drops of colorants in order to achieve print results with better saturation, which is implemented by modifying the classic Floyd-Steinberg error diffusion algorithm. For better halftone texture and more efficient use of colorants, we add a dot-off-dot feature to the classic Floyd-Steinberg error diffusion. Blending-in the original input image with its DBS screened multilevel halftone image as a preprocessing step to dot-off-dot error diffusion is proposed as a measure to reduce halftone artifacts. Digitally simulated halftone images will be presented to illustrate the better halftone texture that can be achieved by applying the proposed algorithm.
APA, Harvard, Vancouver, ISO, and other styles
5

Ms., Monika*1 Mr. Amit Kumar2 &. Mr. Sanjeev Kumar3. "STUDY OF PRINT CONTRAST IN DIFFERENT DOT SHAPES (LINE AND ROUND) OF HALFTONE ON PRINT QUALITY BASED ON DRY TONER ELECTROPHOTOGRAPHY DIGITAL PRESS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 6, no. 2 (2019): 23–28. https://doi.org/10.5281/zenodo.2557488.

Full text
Abstract:
Electrophotography is a NIP (Non-Impact Printing) process. This printing process is most commonly used printing process in now a day. The electrophotography printing is based on the halftones. These halftones are available in different dots shapes like Diamond, Elliptical, Square, Line, Round etc. In this research paper, we compare the print quality bases onprint contrastof different dot shapes like Line and Round. The sheets were printed with different halftone dots shapes like Line and Round with the help of dry electrophotography printing process.
APA, Harvard, Vancouver, ISO, and other styles
6

Xu, Jun Fei, Jin Lin Xu, and Yong Chi Xu. "Study on Optical Dot Gain Model Based on Point Spread and Probability Methods." Applied Mechanics and Materials 271-272 (December 2012): 1434–40. http://dx.doi.org/10.4028/www.scientific.net/amm.271-272.1434.

Full text
Abstract:
Optical dot gain is the key point of halftone reconstruction study, and has always been a meaningful topic of theoretical study. The Yule–Nielsen formula is by far the most widely used research method of optical dot gain. However, solving the Yule–Nielsen parameter n remains a difficult problem. This paper disregards solving for the Yule–Nielsen parameter n, analyzes the light scattering and osmotic effect of halftone presswork, deduces the exact expressions of blank area of presswork, and determines the reflectivity of the dot part and halftone presswork according to the point spread function and probability method. Furthermore, this paper analyzes how the optical dot gain depends on the dot area coverage of presswork, ink layer transmittivity, and paper-based spectral reflectivity. In addition, a new algorithm model for optical dot gain is established. By employing the Clapper–Yule Model to calculate the spectral transmittance of printing ink and comparing it with the practical measured spectral reflectivity of the halftone presswork proof, the accuracy of the model established in this paper is fully verified.
APA, Harvard, Vancouver, ISO, and other styles
7

Mr., Sanjeev Kumar*1 Ms. Monika2 &. Mr. Amit Kumar3. "STUDY OF INK TRAPPING IN DIFFERENT DOT SHAPES OF HALFTONE ON DIGITAL PRESS (DRY TONER ELECTROPHOTOGRAPHY)." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 6, no. 4 (2019): 255–57. https://doi.org/10.5281/zenodo.2650955.

Full text
Abstract:
Electrophotography is the most complex digital printing technology. There are two types of digital printing processes i.e. Liquid toner and dry toner digital printing. In this paper, we studied about the Ink trapping in different dot shapes of halftone on dry toner digital printing. Coated paper is used for printing the sheets with different halftone dots (diamond, elliptical, square). Trapping is the technique of printing in which one ink is overlapped on another one. Ink trapping is measured in different halftone dot shapes. The collected data is represented in a meaningful way so that clear difference can be seen. Ink trapping is highest of diamond dot shape followed by elliptical and square dot shapes.
APA, Harvard, Vancouver, ISO, and other styles
8

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.

Full text
Abstract:
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 replaced with different weights. For decoding, an effective strategy is proposed based on a correlation analysis and halftone statistics. The proposed strategy can successfully embed and decode the binary watermark from a single dot-diffused halftone image. From the experimental results, the proposed method is found to be effective in terms of good decoding accuracy, imperceptibility and robustness against various printed distortions.
APA, Harvard, Vancouver, ISO, and other styles
9

Liu, Ping Feng, Hua Wen Ai, and Li Qi Ya. "Clustered-Dot Halftone Watermark Using Phase Modulation." Applied Mechanics and Materials 416-417 (September 2013): 1205–9. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.1205.

Full text
Abstract:
Digital watermarking provides a solution for protecting the copyright of digital contents, and print-and-scan resilient data hiding finds important applications in document security. In this paper, we propose a clustered dot halftone watermarking algorithm based on phase modulation. The watermark region and the other region use the threshold matrix for halftoning at the two different screen angle. The watermark is detected by overlaying the model, with one of the screen angle. Mean filtering and median filtering is performed on the recovered watermark to improve the appearance, and watermark is pre-processed using Arnold transformation to eliminate the edges in the border of the watermark. Experiments show watermark can appear under smearing, cropping and pint-and-scan attacks.
APA, Harvard, Vancouver, ISO, and other styles
10

Rogers, Geoffrey L. "Optical Dot Gain in a Halftone Print." Journal of Imaging Science and Technology 41, no. 6 (1997): 643–56. http://dx.doi.org/10.2352/j.imagingsci.technol.1997.41.6.art00015.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Halftone Dot"

1

Nyström, Daniel. "High Resolution Analysis of Halftone Prints : A Colorimetric and Multispectral Study." Doctoral thesis, Linköpings universitet, Digitala Medier, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-15888.

Full text
Abstract:
To reproduce color images in print, the continuous tone image is first transformed into a binary halftone image, producing various colors by discrete dots with varying area coverage. In halftone prints on paper, physical and optical dot gains generally occur, making the print look darker than expected, and making the modeling of halftone color reproduction a challenge. Most available models are based on macroscopic color measurements, averaging the reflectance over an area that is large in relation to the halftone dots. The aim of this study is to go beyond the macroscopic approach, and study halftone color reproduction on a micro-scale level, using high resolution images of halftone prints. An experimental imaging system, combining the accuracy of color measurement instruments with a high spatial resolution, opens up new possibilities to study and analyze halftone color prints. The experimental image acquisition offers a great flexibility in the image acquisition setup. Besides trichromatic RGB filters, the system is also equipped with a set of 7 narrowband filters, for multi-channel images. A thorough calibration and characterization of all the components in the imaging system is described. The spectral sensitivity of the CCD camera, which can not be derived by direct measurements, is estimated using least squares regression. To reconstruct spectral reflectance and colorimetric values from the device response, two conceptually different approaches are used. In the model-based characterization, the physical model describing the image acquisition process is inverted, to reconstruct spectral reflectance from the recorded device response. In the empirical characterization, the characteristics of the individual components are ignored, and the functions are derived by relating the device response for a set of test colors to the corresponding colorimetric and spectral measurements, using linear and polynomial least squares regression techniques. Micro-scale images, referring to images whose resolution is high in relation to the resolution of the halftone, allow for measurements of the individual halftone dots, as well as the paper between them. To capture the characteristics of large populations of halftone dots, reflectance histograms are computed as well as 3D histograms in CIEXYZ color space. The micro-scale measurements reveal that the reflectance for the halftone dots, as well as the paper between the dots, is not constant, but varies with the dot area coverage. By incorporating the varying micro-reflectance in an expanded Murray-Davies model, the nonlinearity caused by optical dot gain can be accounted for without applying the nonphysical exponentiation of the reflectance values, as in the commonly used Yule-Nielsen model. Due to their different intrinsic nature, physical and optical dot gains need to be treated separately when modeling the outcome of halftone prints. However, in measurements of reflection colors, physical and optical dot gains always co-exist, making the separation a difficult task. Different methods to separate the physical and optical dot gain are evaluated, using spectral reflectance measurements, transmission scans and micro-scale images. Further, the relation between the physical dot gain and the halftone dot size is investigated, demonstrated with FM halftones of various print resolutions. The physical dot gain exhibits a clear correlation with the dot size and the dot gain increase is proportional to the increase in print resolution. The experimental observations are followed by discussions and a theoretical explanation.
APA, Harvard, Vancouver, ISO, and other styles
2

Kalicinski, Simon. "The Effects of Dot Uniformity on Halftone Mottle inFlexographic Prints on Coated Board." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150474.

Full text
Abstract:
Flexographic print is a technology that is growing in popularity, especially in the packaging industry,due to its ability of printing on a wide variety of substrate types. Advances in ensuring good quality from flexographic processes have helped to bolster flexographic printing’s limited usage in the past decades. However, improving the quality of flexographic print products to a level that matches that of other mainstream printing methods is still needed. One common defect that affects flexographic print quality is mottling, which has been studied extensively in e.g. offset prints. At Innventia, a dependable method of calculating mottle numerically that highly correlates with subjective observations has been researched. This method has been applied into developing software called STFI-Mottle, which processes scanned images of halftones and returns average mottle values for them. In the case of this thesis, the goal has been to investigate what sort of characteristics in halftones caused by flexographiclead to a diminished halftone print quality on coated kraft board substrates. These characteristics were studied by examining dot uniformity in pre-printed samples of 30% halftone prints, then evaluating the data gathered with the ambition of finding a correlation between dot feature variations and print mottle. The mottle values that were used for analysis and discussion were computed using STFI-Mottle.The initial reasoning was that “white spots” found within the samples’ raster dots should be closely examined, as they might provide clues to explaining unexpected print mottle. The 30% halftone cyan regions of printed samples were scanned with a high-resolution Creo iQsmart3uniformity analysis was done with Matlab-based dot property calculation software. Thresholding was employed in image analysis in order to separate printed dots from unprinted substrate surface. A mottle evaluation was performed, focusing on the mottle values that were measured in the R channel using the same RGB images that were produced during scanning. Every data variable was compiled into a mean average for each sample, based on five to three signatures. Distribution histograms, simple linear regression and multiple linear regression were used to find meaningful correlations between measured data and mottle values.The study resulted in some significant correlations between variables established as quality indicators, but also showed possible new connections between variables that can express dot uniformity and print mottle. Some variables’ viability as mottle predictors has been rejected, while others are presented as new opportunities for study. The deeper implications of some of the variables analysed could not be investigated, but a foundation for a methodology to conduct similar research has been laid.Furthermore, the thesis has yielded an initial base of knowledge on new objective data that might be used as alternative measurements for quantifying print quality. In conclusion, the study indicated that there are dot uniformity variables that can be linked to print mottle, if not by themselves, then usingvarious combinations of them. Future research may determine the most accurate way that they can accomplish this.scanner. Next, a dot
APA, Harvard, Vancouver, ISO, and other styles
3

Vallat-Evrard, Louis. "Mesure, analyse et modélisation à l'échelle microscopique de points imprimés pour améliorer les solutions de lutte anti-contrefaçon." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAI038/document.

Full text
Abstract:
Les solutions pour lutter contre la contrefaçon permettant une sécurisation des produits dépendent des capacités de mesure à l’échelle microscopique de points imprimés. Les recherches explicitées dans ce manuscrit ont donc été consacrées au développement d’un équipement et de méthodes permettant de mesurer les imprimés à l’échelle microscopique. Un microscope en réflexion avec lumière polarisée a été associé avec un appareil photographique numérique. La matrice de Bayer a été retirée de la surface du capteur photographique et des images raw ont été enregistrées. La platine du microscope, l’appareil photographique, un photomètre et un thermomètre ont été contrôlés directement dans une interface logicielle développée en Python. Une méthode de mesure permettant d’élargir la gamme dynamique de reflectances mesurées a été proposée. L’appareil et les méthodes de mesures ont permis d’améliorer la précision et d’automatiser la mesure des points de trame à l’échelle microscopique. Les élargissements physique et optique des points de trame ont alors été séparés et analysés. Une méthode d’ajustement des pics de l’histogramme, correspondant à l’encre et au papier, avec une fonction Gaussienne a été proposée. Des algorithmes de seuillage ont été employés pour séparer l’élargissement optique et physique des points de trame. Une méthode objective d’évaluation des algorithmes de seuillage a été développée pour déterminer leurs performances sur les images de tramés. Cette méthode d’évaluation procède à une simulation des effets de la diffusion de la lumière et des défauts générés par l’imagerie afin de générer des images tests et images de référence. 30 algorithmes de seuillage de la littérature ont été évalués et ont présenté une dépendance avec le pourcentage de couverture de l’encre. Deux nouveaux algorithmes de seuillage ont alors été développés spécialement pour traiter les imprimés tramés. Le premier algorithme détermine le déplacement du pic correspondant à l’encre sur l’histogramme. Le deuxième algorithme proposé se base sur une pseudo-déconvolution permettant de prétraiter les images et se basant sur une séparation des effets de l’élargissement optique. Une caractérisation de l’élargissement optique et physique a alors été menée sur 2708 images d’imprimés tramés. Enfin, un modèle de l’élargissement physique et un modèle de l’élargissement optique des points de trame ont été proposés. Le modèle physique se base sur une génération de particules d’encre placées selon une fonction de probabilité et sur une fusion des particules d’encre. Le modèle a été évalué en considérant 43269 points de trame différents, mesurés automatiquement sur le microscope. Un nouveau modèle prédisant la réflectance des tramés a été développé, basé sur une double convolution avec deux fonctions différentes d’étalement du point. Ce modèle a permis de simuler de manière précise les effets principaux de la diffusion de la lumière dans le tramé, tout en simulant les effets de piégeage de la lumière à proximité des bords des points de trame<br>Applications in the field of product security and authentication to prevent counterfeiting rely on abilities of microscale measurements of printed dots. Thus, researches described in this manuscript have been directed toward the development of measurement methods and apparatus to characterize halftone dot at the microscale. A polarized reflection optical microscope has been adapted with a commercial digital camera. The Bayer matrix was removed from the surface of the camera and raw images were retrieved. The microscope stage, the camera, the photometer and the thermometer were controlled directly in a Python graphic user interface specifically developed. A high dynamic range capture method was proposed and tuned specifically to obtain richer information on the ink and paper regions. The measurement apparatus and methods helped improve the accuracy and automate the measurements of the halftone dots at the microscale. The physical and optical dot gains were then separated and analyzed. A Gaussian fitting of the ink and paper histogram peaks was proposed to measure automatically the ink and paper region reflectance as a function of the ink coverage. Thresholding algorithms were applied to separate optical and physical dot gain. An objective threshold evaluation method was developed in order to define the best threshold algorithms for halftone images. The method was based on a simulation of the optical dot gain effects and of the microscope distortions to obtain test images and ground truth images. 30 threshold algorithms from literature were evaluated and demonstrated dependency on the ink surface coverage of the halftones. Two novel threshold algorithms were then developed specifically to process halftones. The first threshold algorithm was based on the determination of the amount of ink peak shift. The second threshold algorithm proposed a pretreatment of the images by applying a pseudo-deconvolution strategy, removing the optical dot gain from the halftones. Characterizations of the optical and physical dot gains were then conducted analyzing 2708 different halftones. Finally, a physical dot gain model and an optical dot gain model were proposed in order to predict the halftone reflectances from raster to print. The physical dot gain model was based on the generation of single ink particles placed according to a probability mask and on a fusion of the ink particles. The model was evaluated with 43269 dot morphologies that were captured automatically on the microscope. A novel halftone reflectance model was proposed based on a double convolution with two different paper point spread functions. It allowed an accurate reproduction of the main effects of the light diffusion with, at the same time, an accurate reproduction of the light entrapment near the edges of the dots
APA, Harvard, Vancouver, ISO, and other styles
4

Hoffenberg, Steven. "The tug function : a method of context sensitive dot structuring for digital halftones /." Online version of thesis, 1990. http://hdl.handle.net/1850/11500.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Lin, Yu-Hsiang, and 林煜翔. "Information Hiding in a Halftone Image by Dot Shifting at Multiple Orientations." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/89348527115537767584.

Full text
Abstract:
碩士<br>國立臺灣師範大學<br>圖文傳播學系<br>95<br>As the rapid developments of information technology, it is feasible to obtain the printed documents with high quality. In the past, the digital watermarking mechanism still had some restrictions to printed image, and its protection to printed documents was not effectively implemented. Therefore, this research intends to achieve the information hiding in the printed halftone images by shifting the halftone dots at different orientations. And this method is mainly according to the dots displacement and the dot area compensation. The experimental results show that the proposed method could decode the varied information in the same area by using an optical decoder at different orientations. In addition, some value-added applications to security document and product design are carried out.
APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Halftone Dot"

1

Lineham, Steven. Halftone dot requirements of computer-to-plate systems. LCP, 2000.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Designs, Vepa. Creative Journal: Dot Grid Journal - Abstract Art Bubble Colorful Creative Elegant Flower Halftone Speech - Black Dotted Diary, Planner, Gratitude, Writing, Travel, Goal, Bullet Notebook - 6X9 120 Pages. Independently Published, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Designs, Vepa. Creative Journal: Dot Grid Journal - Abstract Art Bird Creative Dirt Elegant Floral Flower Halftone Leaf Old Plant Splash Vintage - Black Dotted Diary, Planner, Gratitude, Writing, Travel, Goal, Bullet Notebook - 6X9 120 Pages. Independently Published, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Co, Bridgewater Dot Books. I'm Just Here For The Halftime Show: Marching Band Dot Book 120 6x9in Drill Sheets. Independently published, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Halftone Dot"

1

Kumpulainen, Pekka, Marja Mettänen, Mikko Lauri, and Heimo Ihalainen. "Relating Halftone Dot Quality to Paper Surface Topography." In Engineering Applications of Neural Networks. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03969-0_17.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Liu, Mengying, Yuanlin Zheng, Ziwei Tang, and Wei Wang. "A Novel Halftone Dot Prediction Model Based on BP Neural Network." In Lecture Notes in Electrical Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7629-9_8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Guo Jing-Ming, Chang Jia-Yu, and Liu Yun-Fu. "Banding Effect Removal for Digital Multitoning." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-484-8-1087.

Full text
Abstract:
Error diffusion is an efficient halftone method for mainly being applied on printers. The promising high image quality and processing efficiency endorse it as a popular and competitive candidate in halftoning and multitoning applications. The multitoning is an extension of halftoning, adopting more than three tone levels for improving the similarity between an original image and the converted image. Yet, the banding effect, indicating the areas with only one tone level, disturbs the visual perception, and thus seriously degrades image quality. To cope with the banding effect, the tone replacement strategy is proposed in this study. As documented in the experimental results, excellent tone-similarity as that of the original image and promising reconstructed dot-distribution can be provided simultaneously. Comparing with the former banding-free methods, the apparent improvements/features suggest that the proposed method can be a very competitive candidate for multitoning applications.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Halftone Dot"

1

Honjo, Satoru, Sei-ichi Taguchi, and Tsuneo Suzuki. "Dot Gain In Halftone Images." In Neugebauer Memorial Seminar on Color Reproduction, edited by Kazuo Sayanagi. SPIE, 1990. http://dx.doi.org/10.1117/12.963896.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Balasubramanian, Raja. "Printer model for dot-on-dot halftone screens." In IS&T/SPIE's Symposium on Electronic Imaging: Science & Technology, edited by Jan Bares. SPIE, 1995. http://dx.doi.org/10.1117/12.207594.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Yuanfang Guo, Oscar C. Au, Ketan Tang, Lu Fang, and Zhiding Yu. "Data hiding in dot diffused halftone images." In 2011 IEEE International Conference on Multimedia and Expo (ICME). IEEE, 2011. http://dx.doi.org/10.1109/icme.2011.6011964.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Tang, Chuohao, Alex Veis, Robert Ulichney, and Jan Allebach. "Irregular clustered-dot periodic halftone screen design." In IS&T/SPIE Electronic Imaging, edited by Reiner Eschbach, Gabriel G. Marcu, and Alessandro Rizzi. SPIE, 2014. http://dx.doi.org/10.1117/12.2042428.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Zeng, Huanzhao. "Modeling dot area coverage of halftone printing." In Electronic Imaging, edited by Reiner Eschbach and Gabriel G. Marcu. SPIE, 1999. http://dx.doi.org/10.1117/12.373416.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Larson, James R. "Halftone dot gain in liquid electrostatic printing systems." In Color Hard Copy and Graphic Arts. SPIE, 1992. http://dx.doi.org/10.1117/12.2322239.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Larson, James R. "Halftone dot gain in liquid electrostatic printing systems." In SPIE/IS&T 1992 Symposium on Electronic Imaging: Science and Technology, edited by Jan Bares. SPIE, 1992. http://dx.doi.org/10.1117/12.59694.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Wu, Han, Xiangwei Kong, and Shize Shang. "A printer forensics method using halftone dot arrangement model." In 2015 IEEE China Summit and International Conference on Signal and Information Processing (ChinaSIP). IEEE, 2015. http://dx.doi.org/10.1109/chinasip.2015.7230527.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Bulan, Orhan, Vishal Monga, Gaurav Sharma, and Basak Oztan. "Data embedding in hardcopy images via halftone-dot orientation modulation." In Electronic Imaging 2008, edited by Edward J. Delp III, Ping Wah Wong, Jana Dittmann, and Nasir D. Memon. SPIE, 2008. http://dx.doi.org/10.1117/12.767408.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Guo, Jing-Ming, and Jyun-Hao Huang. "Data hiding in halftone images with secret-shared dot diffusion." In 2010 IEEE International Symposium on Circuits and Systems - ISCAS 2010. IEEE, 2010. http://dx.doi.org/10.1109/iscas.2010.5537324.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography