|Author||Sandler, Eugene A. ♦ Gusev, Dmitri A. ♦ Milman, Gregory Y.|
|Subject Domain (in DDC)||Computer science, information & general works ♦ Data processing & computer science|
|Subject Keyword||Hybrid Algorithm ♦ Digital Halftoning ♦ Error Diffusion ♦ Medical Imaging ♦ Ordered Dither ♦ Ordered Matrix ♦ Small Detail ♦ Artificial Contour ♦ Poor Rendition ♦ Zebra Stripe ♦ Well-known Digital Halftoning Technique ♦ Modified Floyd Steinberg Algorithm ♦ Classical Floyd Steinberg Algorithm ♦ Correlated Artifact|
|Abstract||Error diffusion, ordered dither, and patterning are well-known digital halftoning techniques, each with its advantages and disadvantages. Error diffusion is known for correlated artifacts looking like zebra stripes. Images produced by ordered dither and patterning suffer from artificial contours in slowly varying regions of pictures. Use of ordered matrices by both ordered dither and patterning results in poor rendition of small details, so the images appear blurred. We discuss how the modified Floyd--Steinberg error diffusion algorithm reduces correlated artifacts compared to the classical Floyd--Steinberg algorithm without increase in the amount of work. It also simplifies combining of error diffusion with other methods. We introduce two families of hybrid algorithms. One of them combines the modified Floyd--Steinberg algorithm with ordered dither and the other one combines it with patterning. We fight the correlated artifacts with ordered matrices while reducing the accompanying a...|
|Educational Role||Student ♦ Teacher|
|Age Range||above 22 year|
|Education Level||UG and PG ♦ Career/Technical Study|
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
For any issue or feedback, please write to firstname.lastname@example.org