71,192 Hits in 4.6 sec


Lovepreet Kaur*1 & Sandeep Singh Dhaliwal2
2020 Zenodo  
control and change the genuine information of the image.  ...  With this across the board use of computerized pictures, notwithstanding the expanding number of instruments and programming of advanced pictures altering, it has ended up being definitely not hard to  ...  Recently, Digital images have widely spread leading to the use of digital image forensic in broader context of situation.  ... 
doi:10.5281/zenodo.3700407 fatcat:prj52k7grbe4vax2mlnfd57pze

Mosaics of Japanese Picture Scrolls

Naoki Chiba, Hiroshi Kano
2002 IAPR International Workshop on Machine Vision Applications  
We propose scveral new techniques for mosaicing images of Japanese picture scrolls. Previous methods cannot accurately stitch these images, because they are too wide.  ...  These techniques enable us to stitch the images, considering perspective distortion. The third technique warps the image locally in addition to performing global geometric transformation.  ...  Acknowledgements We are thankful to the people of TOPPAN FORMS CO. LTD. and the Tokyo National Museum for providing the images.  ... 
dblp:conf/mva/ChibaK02 fatcat:fih2h6z4vjhlfl4j7dxw24syb4

Design of image processing technique in digital enhancement application

Bhubneshwar Sharma, Jyoti Dadwal
2015 International Journal of Advances in Scientific Research  
This paper describes the basic technological aspects of Digital Image Processing with special reference to satellite image processing.  ...  The intent of classification process is to categorize all pixels in a digital image into one of several land cover classes or themes.  ...  IJASR|VOL 01|ISSUE 08|2015 Digital image A digital remotely sensed image is typically composed of picture elements (pixels) located at the intersection of each row i and column j  ... 
doi:10.7439/ijasr.v1i8.2463 fatcat:457u7ckvrnf4dlzduftiogt6wy

An Improved Method 2-RDWT-SVD using Arnold Transform based Digital Watermarking

Mohit Garg
2018 International Journal for Research in Applied Science and Engineering Technology  
This paper incorporate the detail investigation of Digital watermarking (DW) clarification, idea and the primary commitments in this field, for example, classes of watermarking process that tell which  ...  The performance of scrambling algorithm and security of the image is improved by using various transform coefficients.  ...  In this paper, a picture authentication system by implanting digital "watermarks" into pictures is proposed.  ... 
doi:10.22214/ijraset.2018.5399 fatcat:h362spwtzvebfiowrhbbaca274

A Survey on Digital Image Authentication by DCT and RPM Based Watermarking

Kuldeep Singh, Prof. Ashish Mishra
2016 IOSR Journal of Computer Engineering  
This paper elaborates quality of discrete cosine transform for image watermarking, DCT primarily based image watermarking method, classification and analysis of discrete cosine transform based mostly watermarking  ...  The aim of this paper is to produce a comprehensive review of the existing literature available on discrete cosine transform and wavelet based mostly image watermarking ways.  ...  Geometric Attacks Geometric attacks include basic geometric transformations in a picture.  ... 
doi:10.9790/0661-1804013742 fatcat:ddv5uy6iojf3tf3kvcrbkg4zku


Birutė Ruzgienė, Qian Yi Xiang, Silvija Gečytė
2012 Geodesy and Cartography  
The rectification of high resolution digital aerial images or satellite imagery employed for large scale city mapping is modern technology that needs well distributed and accurately defined control points  ...  Reference data and rectification results are checked comparing with those received from processing digital aerial images using a digital photogrammetry approach.  ...  Raw digital images contain internal geometric distortions that are the results of the image acquisition process (Luhman et al. 2006) .  ... 
doi:10.3846/13921541.2011.645348 fatcat:4owqs4vv3bcuhauqr2d3soqteq

An Ameliorated DWT-SVD Entrenched Digital Watermarking in Consideration of Polychrome Effigy

2017 International Journal of Science and Research (IJSR)  
For these two vital properties of Digital Watermarking, i.e. Robustness and Imperceptibility of watermarked image should take into thought.  ...  The performance of the projected algorithmic program is compared with some previous works and results found are more robust against various geometric attacks.  ...  As a digital image, may be depicted during a matrix kind with its entries giving the intensity price of every picture element within the image, SVD of a picture M with dimension in mxm is given by.  ... 
doi:10.21275/art20175339 fatcat:t6jbxqbfrzauvdfpe57vise4xa

Measuring Agglomeration of Agglomerated Particles Pictures [article]

Shigeki Matsutani, Yoshiyuki Shimosako
2013 arXiv   pre-print
In this article, we introduce a novel geometrical index δ_agg, which is associated with the Euler number and is obtained by an image processing procedure for a given digital picture of aggregated particles  ...  By applying the image processing procedure to the pictures of the agglomeration particles constructed following the algorithm, we show that δ_agg statistically reproduces the agglomeration parameter γ_agg  ...  In other words, our purpose that we recover γ agg for a given picture by means of the digital image processing procedure is accomplished by considering the deformation of the geometrical object.  ... 
arXiv:1302.5150v4 fatcat:2bbm2bkqdnebpewnvgk72ulc7i

The study of methods for correcting global digital terrain models using remote sensing data

Ihor Kolb, Marija Lucyshyn, Małgorzata Panek
2013 Geomatics, Landmanagement and Landscape  
is work describes original methods of improving the quality of Digital Elevation Models (DEM), obtained by means of satellite altimetry data.  ...  Shown are subsequent steps of geometric correction of global raster DEM, such as SRTM, SRTM DLR and ASTER GDEM, which are commonly available.  ...  In the next pictures ( Figure 5 ) the fragment of the satellite image and the fragment of SRTM DLR are shown. ey both show the area of study.  ... 
doi:10.15576/gll/2013.3.59 fatcat:kj7bybpfp5eavou46ylkwywe3u

Fundamentals of Digital Image Processing and Basic Concept of Classification

Shammi Shawal, Muhammad Shoyab, Suraiya Begum
2014 International Journal of Chemical and Process Engineering Research  
the form of discrete digital brightness using digital circuits or digital computers.  ...  Image Processing is a technique which is used to enhance raw images received from cameras, satellites, space probes, aircrafts etc. and Digital image processing is the technique of processing images in  ...  Two types of images are-Analog & Digital .An analog image is continuous and indiscrete, the natural picture and a digital image is two-dimensional image having finite set of digital values, calledpicture  ... 
doi:10.18488/journal.65/2014.1.6/ fatcat:ahpdqccwirhcrgcqmftd7i4mne

Monitoring seasonal snow dynamics using ground based high resolution photography (Austre Lovénbreen, Svalbard, 79°N)

É. Bernard, J.M. Friedt, F. Tolle, M. Griselin, G. Martin, D. Laffly, C. Marlin
2013 ISPRS journal of photogrammetry and remote sensing (Print)  
Furthermore, geometric corrections of the pictures, using reference ground control points located on the glacier through GPS receivers, yield a quantitative information from initially qualitative images  ...  In the context of long term monitoring with high temporal and spatial resolutions of the snow cover dynamics, automated digital cameras were installed around the Austre Lovénbreen glacier basin (Spitsbergen  ...  First, a geometric correction aims at projecting the images to a zenithal view and yield a mosaic of pictures covering the region of interest of the glacier.  ... 
doi:10.1016/j.isprsjprs.2012.11.001 fatcat:57mjbaf5tjdihidl3giwaro4pi

Camera identification from printed images

Miroslav Goljan, Jessica Fridrich, Jan Lukáš, Edward J. Delp III, Ping Wah Wong, Jana Dittmann, Nasir D. Memon
2008 Security, Forensics, Steganography, and Watermarking of Multimedia Contents X  
In this paper, we study the problem of identifying digital camera sensor from a printed picture.  ...  Their identification is complicated by complicated geometric distortion due to imperfections in paper feed. Removing this distortion is part of the identification procedure.  ...  INTRODUCTION With the proliferation of digital imaging technology, the problem of establishing a link between an imaging hardware and a digital object, such as image or video, has tremendously increased  ... 
doi:10.1117/12.766824 dblp:conf/sswmc/GoljanFL08 fatcat:2bqoodl7aba5vlmh5dwzbzpzmm

High temporal resolution monitoring of snow cover using oblique view ground-based pictures

D. Laffly, É. Bernard, M. Griselin, F. Tolle, J-M. Friedt, G. Martin, C. Marlin
2011 Polar Record  
We complement satellite imagery with a set of ground based autonomous automated high resolution digital cameras.  ...  The recorded oblique views, acquired at a rate of 3 images per day, are processed for comparison with the spaceborne imagery.  ...  with a set of pixel identified on one reference picture of each camera, here camera number 3 in the naming convention of Fig. 1. 3. resulting geometrically corrected image.  ... 
doi:10.1017/s0032247411000519 fatcat:cb3a3gpmezelbfv6ay2mzs4z2q

Inspection Of Geometrical Integrity Of Work Piece And Measurement Of Tool Wear By The Use Of Photo Digitizing Method

R. Alipour, F. Nadjarian, A. Alinaghizade
2010 Zenodo  
Photo digitizing method using two cameras to record pictures and utilization of conventional method named "cloud points" and data analysis by the use of ATOUS software, is known as modern and efficient  ...  In this paper, benefits of photo digitizing method in evaluating sampling of machining processes have been put forward.  ...  After recording pictures, firstly points are corresponded according to numbers and then over lapped parts are deleted and final image will be gained.  ... 
doi:10.5281/zenodo.1072127 fatcat:jvzpr5o7zzfbhau7bqnaftmq4q

Image Reconstruction using its Spatial and Geometrical Information

K. B. Ranushka Pasindu Dharmaranga, Ligitha Sakthymayuran
2022 Zenodo  
In this approach, Training photos are used to extract local feature descriptors; at first images are recreated using local feature descriptors and geometric information.  ...  Image reconstruction is currently often used in a wide range of technological and medical applications.  ...  This work presented a technique for recreating a digital image utilizing local descriptors such as SIFT and geometrical information.  ... 
doi:10.5281/zenodo.6787484 fatcat:57bhzf4aujfkrpcgzv5toryueq
« Previous Showing results 1 — 15 out of 71,192 results