UPDIG Image Receivers Guidelines V4.0
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Secret Digital Image Sharing Using Natural Image Based VSS Scheme
International Journal of Science and Research (IJSR) ISSN (Online): 2319-7064 Index Copernicus Value (2013): 6.14 | Impact Factor (2013): 4.438 Secret Digital Image Sharing Using Natural Image Based VSS Scheme Pinky .V M. Tech Student, Dept. of Computer Science & Engineering Mount Zion College of Engineering, Pathanamthitta, Kerala, India Abstract: Visual cryptography is a technique of sharing secret images. This technique encrypts a secret image into number of shares. Combining these shares generates the original image and it can be directly recognized by the human visual system. Visual Secret Sharing scheme is a method of distributing and sharing the secret image amongst a set of users. In conventional visual secret sharing scheme, the shares May holding the security parameters for protecting the secret image but it will leads to suffering the problem of transmission risk. This is the main problem in conventional VSS scheme. To solve this problem here introduce a new scheme of secret digital image sharing via natural image based VSS scheme. In this proposed scheme the shares are encrypted by using the strong AES encryption technique after that this encrypted share is embedded into the natural image. For recovering the original image, it is necessary to decrypt the encrypted share. This method not only reduces the transmission risk problem but also enhance the security of the secret image. Keywords: Visual Cryptography, Visual Secret Sharing Scheme, Transmission Risk Problem, Natural Image based VSS scheme, Encryption/Decryption technique. 1. Introduction photographs. In the proposed scheme diverse media is used for sharing digital images. Using a variety of media for In communication system security of secret image is very sharing the secret image increases the difficulty of altering important. -
Penelope Umbrico's Suns Sunsets from Flickr
City University of New York (CUNY) CUNY Academic Works Dissertations and Theses City College of New York 2014 Image Commodification and Image Recycling: Penelope Umbrico's Suns Sunsets from Flickr Minjung “Minny” Lee CUNY City College of New York How does access to this work benefit ou?y Let us know! More information about this work at: https://academicworks.cuny.edu/cc_etds_theses/506 Discover additional works at: https://academicworks.cuny.edu This work is made publicly available by the City University of New York (CUNY). Contact: [email protected] The City College of New York Image Commodification and Image Recycling: Penelope Umbrico’s Suns from Sunsets from Flickr Submitted to the Faculty of the Division of the Arts in Candidacy for the Degree of Master of Arts Department of Humanities and Liberal Arts by Minjung “Minny” Lee New York, New York May 2014 Copyright © 2014 by Minjung “Minny” Lee All rights reserved CONTENTS Acknowledgements v List of Illustrations vi Introduction 1 Chapter 1. Umbrico’s Transformation of Vernacular Visions Found on Flickr 14 Suns from Sunsets from Flickr and the Flickr Website 14 Working Methods for Suns from Sunsets from Flickr 21 Changing Titles 24 Exhibition Installation 25 Dissemination of Work 28 The Temporality and Mortality of Umbrico’s Work 29 Universality vs. Individuality and The Expanded Role of Photographers 31 The New Way of Image-making: Being an Editor or a Curator of Found Photos 33 Chapter 2. The Ephemerality of Digital Photography 36 The Meaning and the Role of JPEG 37 Digital Photographs as Data 40 The Aura of Digital Photography 44 Photography as a Tool for Experiencing 49 Image Production vs. -
What Resolution Should Your Images Be?
What Resolution Should Your Images Be? The best way to determine the optimum resolution is to think about the final use of your images. For publication you’ll need the highest resolution, for desktop printing lower, and for web or classroom use, lower still. The following table is a general guide; detailed explanations follow. Use Pixel Size Resolution Preferred Approx. File File Format Size Projected in class About 1024 pixels wide 102 DPI JPEG 300–600 K for a horizontal image; or 768 pixels high for a vertical one Web site About 400–600 pixels 72 DPI JPEG 20–200 K wide for a large image; 100–200 for a thumbnail image Printed in a book Multiply intended print 300 DPI EPS or TIFF 6–10 MB or art magazine size by resolution; e.g. an image to be printed as 6” W x 4” H would be 1800 x 1200 pixels. Printed on a Multiply intended print 200 DPI EPS or TIFF 2-3 MB laserwriter size by resolution; e.g. an image to be printed as 6” W x 4” H would be 1200 x 800 pixels. Digital Camera Photos Digital cameras have a range of preset resolutions which vary from camera to camera. Designation Resolution Max. Image size at Printable size on 300 DPI a color printer 4 Megapixels 2272 x 1704 pixels 7.5” x 5.7” 12” x 9” 3 Megapixels 2048 x 1536 pixels 6.8” x 5” 11” x 8.5” 2 Megapixels 1600 x 1200 pixels 5.3” x 4” 6” x 4” 1 Megapixel 1024 x 768 pixels 3.5” x 2.5” 5” x 3 If you can, you generally want to shoot larger than you need, then sharpen the image and reduce its size in Photoshop. -
Invention of Digital Photograph
Invention of Digital photograph Digital photography uses cameras containing arrays of electronic photodetectors to capture images focused by a lens, as opposed to an exposure on photographic film. The captured images are digitized and stored as a computer file ready for further digital processing, viewing, electronic publishing, or digital printing. Until the advent of such technology, photographs were made by exposing light sensitive photographic film and paper, which was processed in liquid chemical solutions to develop and stabilize the image. Digital photographs are typically created solely by computer-based photoelectric and mechanical techniques, without wet bath chemical processing. The first consumer digital cameras were marketed in the late 1990s.[1] Professionals gravitated to digital slowly, and were won over when their professional work required using digital files to fulfill the demands of employers and/or clients, for faster turn- around than conventional methods would allow.[2] Starting around 2000, digital cameras were incorporated in cell phones and in the following years, cell phone cameras became widespread, particularly due to their connectivity to social media websites and email. Since 2010, the digital point-and-shoot and DSLR formats have also seen competition from the mirrorless digital camera format, which typically provides better image quality than the point-and-shoot or cell phone formats but comes in a smaller size and shape than the typical DSLR. Many mirrorless cameras accept interchangeable lenses and have advanced features through an electronic viewfinder, which replaces the through-the-lens finder image of the SLR format. While digital photography has only relatively recently become mainstream, the late 20th century saw many small developments leading to its creation. -
Image-Based Abuse, Non-Consensual Pornography, Revenge Porn: a Study of Criminalization and Crime Prevention in Australia and England & Wales
Yar & Drew – Image-Based Abuse, Non-Consensual Pornography, Revenge Porn Copyright © 2019 International Journal of Cyber Criminology – ISSN: 0974–2891 July – December 2019. Vol. 13(2): 578–594. DOI: 10.5281/zenodo.3709306 Publisher & Editor-in-Chief – K. Jaishankar / Open Access (Authors / Readers No Pay Journal). This is a Diamond Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC-BY-NC-SA 4.0) License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Image-Based Abuse, Non-Consensual Pornography, Revenge Porn: A Study of Criminalization and Crime Prevention in Australia and England & Wales Majid Yar1 University of Hull, United Kingdom Jacqueline Drew2 Griffith Criminology Institute, Australia Abstract Distribution of nude, intimate and sexualized images of individuals without consent and against the wishes of those individuals whose image has been captured, is of growing concern across the world. Moving from the conceptualization of ‘revenge porn’ in the early 2000’s, through to our more sophisticated understanding of the issues of “image-based abuse” and “non-consensual pornography” this paper considers the broad context of these crimes. The paper draws on the concepts of online misogyny, gender-based victimization, and “toxic masculinity”. The progress towards criminalization of such online abuse, with reference to the recent introduction of new laws in England & Wales and Australia is examined. This shift from voluntary to statutory regulation, and from civil to criminal law remedies has been coupled with new crime prevention and control initiatives that seek to encourage reporting leading to prosecution and educate users and empower victims. -
America Through Street Photography
From the Instructor Sarah wrote this piece for my section of the Genre and Audience WR X cluster. Students had undertaken semester-long research projects and, in the final assignment for the course, were asked to reimagine their academic arguments for a public audience. Deciding to write in the style of The New Republic, which is, in the publication’s own words, “tailored for smart, curi- ous, socially aware readers.” Sarah’s focus on street photography brings her research on classic American images to a non-expert audience with diverse professional and disciplinary perspectives, appealing to their interests in history and the arts while tapping into contemporary culture. — Gwen Kordonowy WR 150: The American Road 135 From the Writer When I enrolled in an experimental writing class entitled “The American Road,” I assumed that the semester would be filled with discussions about the physical American road, its attractions, and its place in American history. While the physical road was an important subject in the class, I learned that this “American Road” was expansive beyond its physical limi- tations, able to encompass topics as broad and abstract as social progress, popular television shows, and, in my case, photography. I ultimately chose to investigate the works of two American street photographers, Robert Frank and Lee Friedlander, whose approaches to photography reveal much about life in America and what it means to be an American. While both photographers frequently feature the road in their pictures, I chose to focus more on the people and culture found alongside it and how they represent America. -
Making Sense of the Selfie: Keywords: Rudolfs Blaumanis, Gottfried Keller, 19Th Century Literature, Latvian Litera Ture, Autobiographical Novel, Art and Artist
46 RAKSTI BENEDIKTS KALNACS 47 Artist. Reality, and (Auto)biography ALISE TIFENTALE in Rudolfs Blaumanis's and Gottfried Keller's Fiction Making Sense of the Selfie: Keywords: Rudolfs Blaumanis, Gottfried Keller, 19th century literature, Latvian litera ture, autobiographical novel, art and artist. Digital Image-Making Summary and Image-Sharing in Social Media The paper discusses aspects of the Latvian writer's Rudolfs Blaumanis (1863-1908) fiction in comparative perspective. An important aspect of Blaumanis's efforts was devoted to the discussion ofindividual life stories of his characters, and he also dealt with the possibility or impossibility of a person to become his or her true self in the interpretative contexts ofthe l 9th century society and culture. In European perspective, Keywords: History of photography, digital photography, social media, the image of an artist was often put at the centre of writers' attention, and the paper Ins tagram, self-portraits, software studies. provides one such case study, a discussion of the Swiss author's, Gottfried Keller autobiographical novel "Green Henry" (Der Grune Heinrich, 1st version 1855, 2nd Introduction version 1880) to which the works ofBlaumanis are then compared. The paper deals with some of the Latvian author's most important novellas, written between 1882 and 1898, A wide range of photographic practices has flo urished outside the and discusses the impossibility of artistic career in the context of the 19th century institutional framework of the art world or commercial photography since Latvian society due to different historical and social background as discussed in the early 1900s, when the availability and ease of use of the Kodak Brownie Blaumanis's texts. -
Flickr and Public Image-Sharing: Distant Closeness and Photo Exhibition
Flickr and Public Image-Sharing: Distant Closeness and Photo Exhibition Nancy A. Van House Abstract School of Information This paper presents an empirical study in progress of University of California, Berkeley the use of Flickr.com™, part of an on-going research Berkeley, CA 94720-4600 program on personal digital media, including images. [email protected] Two new kinds of image-sharing with Flickr are “distant closeness” and “photo exhibition.” We are seeing changing uses of images in social interaction and increased multi-modal communication. Keywords digital photos, distant closeness, Flickr.com, photography, photo sharing, social networking ACM Classification H5.m. Information interfaces and presentation (e.g., HCI): Miscellaneous Introduction The popularity of image-sharing sites like Flickr.com™ allows us to observe what “ordinary” users do when given the ability to more readily incorporate images in their everyday activity. More generally, we are seeing Copyright is held by the author/owner(s). large numbers of people engaged in the creation and CHI 2007, April 28May 3, 2007, San Jose, California, USA. sharing of new media, in the context of a long tradition ACM 978-1-59593-642-4/07/0004. of media use, in this case, personal photography. In this paper, we report on early findings of a study of Third, photos are used for self-representation. People Flickr and put these findings about the uses of new seek to present themselves in such a way as to ensure media and technologies in the context of photographic that others see them as they wish to be seen [7]. -
1/2-Inch Megapixel CMOS Digital Image Sensor
MT9M001: 1/2-Inch Megapixel Digital Image Sensor Features 1/2-Inch Megapixel CMOS Digital Image Sensor MT9M001C12STM (Monochrome) Datasheet, Rev. M For the latest datasheet, please visit www.onsemi.com Features Table 1: Key Performance Parameters Parameter Value • Array Format (5:4): 1,280H x 1,024V (1,310,720 active Optical format 1/2-inch (5:4) pixels). Total (incl. dark pixels): 1,312H x 1,048V Active imager size 6.66 mm (H) x 5.32 mm (V) (1,374,976 pixels) • Frame Rate: 30 fps progressive scan; programmable Active pixels 1,280 H x 1,024 V • Shutter: Electronic Rolling Shutter (ERS) Pixel size 5.2 m x 5.2 m • Window Size: SXGA; programmable to any smaller Shutter type Electronic rolling shutter (ERS) Maximum data rate/ format (VGA, QVGA, CIF, QCIF, etc.) 48 MPS/48 MHz • Programmable Controls: Gain, frame rate, frame size master clock Frame SXGA 30 fps progressive scan; rate (1280 x 1024) programmable Applications ADC resolution 10-bit, on-chip Responsivity 2.1 V/lux-sec • Digital still cameras Dynamic range 68.2 dB • Digital video cameras •PC cameras SNRMAX 45 dB Supply voltage 3.0 V3.6 V, 3.3 V nominal 363 mW at 3.3 V (operating); Power consumption General Description 294 W (standby) Operating temperature 0°C to +70°C The ON Semiconductor MT9M001 is an SXGA-format with a 1/2-inch CMOS active-pixel digital image sen- Packaging 48-pin CLCC sor. The active imaging pixel array of 1,280H x 1,024V. It The sensor can be operated in its default mode or pro- incorporates sophisticated camera functions on-chip grammed by the user for frame size, exposure, gain set- such as windowing, column and row skip mode, and ting, and other parameters. -
More About Digital Cameras Image Characteristics Several Important
More about Digital Cameras Image Characteristics Several important characteristics of digital images include: Physical Size How big is the image that has been captured, as measured in inches or pixels? File Size How large is the computer file that makes up the image, as measured in kilobytes or megabytes? Pixels All digital images taken with a digital camera are made up of pixels (short for picture elements). A pixel is the smallest part (sometimes called a point or a dot) of a digital image and the total number of pixels make up the image and help determine its size and its resolution, or how much information is included in the image when we view it. Generally speaking, the larger the number of pixels an image contains, the sharper it will appear, especially when it is enlarged, which is what happens when we want to print our photographs larger than will fit into small 3 1\2 X 5 inch or 5 X 7 inch frames. You will notice in the first picture below that the Grand Canyon is in sharp focus and there is a large amount of detail in the image. However, when the image is enlarged to an extreme level, the individual pixels that make up the image are visible--and the image is no longer clear and sharp. Megapixels The term megapixels means one million pixels. When we discuss how sharp a digital image is or how much resolution it has, we usually refer to the number of megapixels that make up the image. One of the biggest selling features of digital cameras is the number of megapixels it is capable of producing when a picture is taken. -
The Social Life of Snapshots the Past, Present, and Future of Personal Photography
The Social Life of Snapshots The Past, Present, and Future of Personal Photography Morgan Golata Ames School of Information University of California, Berkeley Advised by Professor Nancy Van House Final Project (Option B: Research Track) for the degree of Master in Information Management and Systems Submitted May 4, 2006 Morgan Ames The Social Life of Snapshots Abstract Digital cameras, cameraphones, online sharing, and other innovations are expanding the ways we interact with photographs. This study examines the past and present social uses of personal photography and reports on an investigation into possible future uses of cameraphones and online/mobile image sharing. We conducted 57 interviews with 51 participants and carried out a 10-month investigation of cameraphone use in a group of 70 strongly-connected participants, all on the west coast of the United States. We found that cameraphones are interpreted as three devices in one: they are memory-capture devices, communicative devices, and expressive devices, with the third being dominant. Traditionally, cameras were primarily memory-capture devices, especially in family photography where the most research has been done. To balance tendencies toward technological or social determinism, we use concepts from Activity Theory and the Social Construction of Technology in our analysis. We compare our results to those of researchers doing similar work in Japan and Finland. 2 Morgan Ames The Social Life of Snapshots Table of Contents Introduction...................................................................................................................5 -
Oxnard Course Outline
Course ID: DMS R120B Curriculum Committee Approval Date: 04/25/2018 Catalog Start Date: Fall 2018 COURSE OUTLINE OXNARD COLLEGE I. Course Identification and Justification: A. Proposed course id: DMS R120B Banner title: AdobePhotoShop II Full title: Adobe PhotoShop II B. Reason(s) course is offered: This course provides the development of skills necessary to combine the use of Photoshop digital image editing software with Adobe LightRoom's expanded digital photographic image editing abilities. These skills will enhance a student’s ability to enter into employment positions such as web master, graphics design, and digital image processing. C. C-ID: 1. C-ID Descriptor: 2. C-ID Status: D. Co-listed as: Current: None II. Catalog Information: A. Units: Current: 3.00 B. Course Hours: 1. In-Class Contact Hours: Lecture: 43.75 Activity: 0 Lab: 26.25 2. Total In-Class Contact Hours: 70 3. Total Outside-of-Class Hours: 87.5 4. Total Student Learning Hours: 157.5 C. Prerequisites, Corequisites, Advisories, and Limitations on Enrollment: 1. Prerequisites Current: DMS R120A: Adobe Photoshop I 2. Corequisites Current: 3. Advisories: Current: 4. Limitations on Enrollment: Current: D. Catalog description: Current: This course will continue the development of students’ skills in the use of Adobe Photoshop digital image editing software by integrating the enhanced editing capabilities of Adobe Lightroom into the Adobe Photoshop workflow. Students will learn how to “punch up” colors in specific areas of digital photographs, how to make dull-looking shots vibrant, remove distracting objects, straighten skewed shots and how to use Photoshop and Lightroom to create panoramas, edit Adobe raw DNG photos on mobile device, and apply Boundary Wrap to a merged panorama to prevent loss of detail in the image among other skills.