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275 articles for “digital image”
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Image Enhancement Techniques for Digital Images
Abstract: In image processing, image enhancement is a challenging problem. Image enhancement aims to process an image in a way that makes the final product better suited for a particular application than the original. There are numerous ways to improve the quality of images using digital image enhancement techniques. It is crucial to use these techniques correctly. Image enhancement is a critical aspect of image processing, focusing on improving the visual …
Published in International Journal of Radio Frequency Innovations · Vol. 3, Issue 1, 2025 · pp. 14–18 Read article
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Digital Image Watermarking using Discrete Cosine Transform
Abstract: Digital image processing is a growing field. Digital image processing operations are mainly divided into three major categories: Image enhancement, Image compression and Image segmentation. Digital Watermarking comes under image segmentation. The present paper proposes the technique for the digital watermarking for digital multimedia. The growth in e-world which is coupled with computer network, world wide web and more over exponential advancement in computer performance. All these technologies has facilitated …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 1, Issue 2, 2013 · pp. 17–22 Read article
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AUTOMATED PRINTED CIRCUIT BOARD (PCB) DEFECT DETECTION USING DIGITAL IMAGE PROCESSING TECHNIQUE
Abstract: This work presents a Digital Image Processing (DIP) solution involving the use of image filters and processing functions to analyse the reference and the test images of a Printed Circuit Board (PCB) to yield a resulting image in which open and short circuits have been highlighted. The problem solved was the dependence of other PCB defects detection methods on the absence of deformation in the test image and this was …
Published in Journal of Mechatronics and Automation · Vol. 6, Issue 1, 2019 · pp. 1–11 Read article
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Effect of Voltage on Aluminium Nanopore Images using Digital Image Processing Techniques
Abstract: Research on nanotechnology, by and large is dedicated to ordered, controlled and customized fabrication of nanopores. The proposed study emphases on groping the morphology of alumina through FESEM images and characterization using automatic tool developed using image processing software. The proposed automatic tool measures the effect of variable voltage (35, 40 and 45 V) on alumina at constant concentration (4.7%), time (8 min) and temperature (5oC). It has been observed …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 8, Issue 3, 2018 · pp. 8–14 Read article
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Design an Algorithm to Detect and Count Small Size Object Using Digital Image Processing
Abstract: This paper presents algorithm to detect and count small size objects using digital image processing in MATLAB. Digital image processing can be used for small size with high accuracy. The image with different objects is captured by digital camera. There is an algorithm based on morphologic that converts the input image into a format such that the number of objects can be counted based on the components present in the …
Published in Recent Trends in Electronics Communication Systems · Vol. 3, Issue 2, 2016 · pp. 9–13 Read article
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Secured Communication and Image Authentication: Embedding Encrypted Text Files Into Color Digital Images
Abstract: In today's digital landscape, protecting digital assets, particularly images, is paramount. Researchers have developed various techniques to safeguard these assets, emphasizing their protection and integrity. Simultaneously, steganography plays a crucial role in securely communicating confidential messages. This paper focuses on a dual-purpose technique: watermarking color digital images for protection and embedding secret messages through steganography. This fusion of functionalities represents a significant step in comprehensive asset protection and confidential communication …
Published in International Journal of Information Security Engineering · Vol. 2, Issue 1, 2024 · pp. 10–15 Read article
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Crack Assessment in Concrete Using Digital Image Processing: A Review
Abstract: The health of civil structures is assessed continuously to avoid any kind of cracking in concrete that may lead to its sudden failure and not to mention, this kind of unfortunate situation is hazardous to all the civilians living in or around it. Thus, structural health monitoring becomes a vital process in structural engineering. The conventional practice of structural monitoring involves visual inspection of concrete structures by an inspector at …
Published in Journal of Software Engineering Tools & Technology Trends · Vol. 7, Issue 1, 2020 · pp. 1–7 Read article
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Speech Hiding in a Digital Image using DWT and DES Algorithm
Abstract: AbstractThe proposed paper presents a speech hiding technique in a digital image (DI). Here the technique used is Discrete Wavelet Transform (DWT). It secures speech signal from unauthorized users. It can be done by embedding speech into an image by steganography. Thus, unauthorized users will not detect secret speech in stego image. Suppose unauthorized users detect the speech that will be fraud because no one can obtain speech signal without …
Published in Journal of Open Source Developments · Vol. 4, Issue 2, 2017 · pp. 13–18 Read article
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Study and Analysis of Domain Based Digital Image Water Marking Techniques: Survey
Abstract: AbstractDue to the modern steps forward in internet technology and evolution of very high-speed networks operating everywhere, security of digital content is must. So, it has become a hard job to protect copyright of an individual's creation. Digital image watermarking (DIW) is usually utilized for copyright protection of virtual facts. The effectiveness of a digital watermarking (DW) approach is indicated by using the robustness of embedded watermarks (EW) against the …
Published in Journal of Artificial Intelligence Research & Advances · Vol. 4, Issue 2, 2017 · pp. 39–45 Read article
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A Parallel Online Learning Algorithm for Anisotropic Digital Image Restoration
Abstract: Previously, in the computational scenarios where the training data has already been made available for the learning algorithm, the kernel based algorithm such as support vector machines have made significant advances in the machine learning field. Though there has been little advancement made in learning scenario at online settings to facilitate the various real-time applications at the user end. In this study we discussed the issues with the online learning …
Published in Recent Trends in Parallel Computing · Vol. 2, Issue 1, 2015 · pp. 21–26 Read article
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A Review on Digital Image Forgeries and Their Detection
Abstract: Abstract: In today’s digital era due to the availability of large and editing tools which are easily available tempering images and changing the content of images have become the easy task. The image is manipulated in such a way that the viewers cannot detect it. Due to this, more work is being done on the internet and almost all information is conveyed by images. So the important task is to …
Published in Journal of Artificial Intelligence Research & Advances · Vol. 6, Issue 3, 2019 · pp. 37–43 Read article
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Watermarking Analysis of Digital Image Using Various Approaches: A Review
Abstract: AbstractFor present security to the digital media on the net the very beneficial generation is, virtual watermarking (DW). Watermark is an image or pattern in document which is used to identify data authentication and data integrity. The user can check the watermarked records with the watermark key and watermarking extraction system. The different techniques of watermarking reviewed in this paper are: least significant bit (LSB), robust, discrete cosine transform (DCT), …
Published in Journal of Open Source Developments · Vol. 4, Issue 1, 2017 · pp. 30–36 Read article
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Comparative Analysis of Digital Image Watermarking using DCT and DWT
Abstract: AbstractWatermarking is a technique to hide information into digital data and provides security against intentional and unintentional attack. It is a very important and emerging field which helps to protect ownership of digital information. Watermarking is the process of inserting or hiding information behind cover data. In this paper we discussed about two digital watermarking techniques, Discrete Cosine Transform (DCT) and discrete wavelet Transform (DWT). The parameters to test robustness …
Published in Journal of Communication Engineering & Systems · Vol. 4, Issue 1, 2014 · pp. 1–5 Read article
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Digital Image Authentication on Cloud using QR Code
Abstract: In these days, many people are using social sites for sharing and uploading their life moments as images. And other users can capture or even download those digital images. Hacker can edit and modifying the original image and make a duplicate image. Modify images can then be uploading and sharing. This research generally discusses the importance of QR with Digital Watermarking. The QR Code based Digital Watermarking is possible in …
Published in Journal of Electronic Design Technology · Vol. 12, Issue 3, 2021 · pp. 4–8 Read article
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Selection of Optimal Threshold in Digital Images using Collision Entropy and Min Entropy
Abstract: AbstractImage segmentation partitions an image into multiple segments based on properties of discontinuity and similarity. Thresholding is one of the important methods for image segmentation. It is used to discriminate foreground from the background of an image. The selection of suitable threshold value in the image is a challenging task. Thresholding value depends upon the randomness of intensity distribution of the image. Entropy is a parameter to measure the randomness …
Published in Journal of Software Engineering Tools & Technology Trends · Vol. 4, Issue 2, 2017 · pp. 25–31 Read article
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Covariance based Clustering for Digital Image Compression
Abstract: Traditionally clustering is done based on distance between the data points and the cluster centroids. A new type of clustering based on distance between the covariance matrices of the clustered data points was recently introduced. This allows clustering data points according to their spatial distribution model. This paper presents an improved algorithm for the computation of covariance based clustering with application to digital image compression. Karhunen-Loeve Transform is an optimal …
Published in Current Trends in Information Technology · Vol. 8, Issue 1, 2018 · pp. 16–21 Read article
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Structural Health Monitoring of Bridges using Digital Image Correlation: A Case Study
Abstract: The rapid development of the transportation section and continuous change in traffic volume, density, and loading patterns over the last few decades have increased the probability of a hazard and reduced the life of existing bridges. Structural Health Monitoring (SHM) is a process of implementing a damage detection and characterization strategy for engineering structures. This paper presents a review of various trends and technology adopted for SHM. However, it focuses …
Published in Recent Trends in Civil Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 1–10 Read article
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Axial Compression Behavior of Aluminum (Al), Glass/Epoxy (GFRP) and Hybrid Al-GFRP Crash-box: An Experimental and Digital Image Correlation Approach
Abstract: The study aims to understand the axial compression characteristics and fracture of cylindrical Aluminum (Al), Glass/epoxy (GFRP) composite and Hybrid Al-GFRP crash-boxes. The hollow Al tubes are fabricated by rolling and bonding a thin aluminum sheet followed by rivet joints. The GFRP samples are manufactured using the wet-hand layup technique followed by the vacuum bagging method. Hybrid samples are manufactured by covering GFRP tubes with aluminum sheets on the outer …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 304–313 Read article
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A Review of Digital Image Watermarking Techniques for Secure Data Transmission
Abstract: AbstractNowadays, a chief problem encountered by content providers and owners is the protection of their material. The ease by which digital information can be duplicated and distributed has led to the need for effective copyright protection tools. Recently digital watermarking technology has emerged as an effective solution for protecting the digital content from unauthorized copying. With its area of application coexisting in all three forms of media, i.e., image, music …
Published in Current Trends in Information Technology · Vol. 3, Issue 1, 2013 · pp. 1–6 Read article
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A Review: Digital Image Processing
Abstract: Image Processing consists of converting the nature of a photograph with a view to improve its pictorial records for human interpretation, for independent system notion. virtual picture processing is a subset of the electronic area in which the image is transformed to an array of small integers, referred to as pixels, representing a bodily amount inclusive of scene radiance, saved in a virtual reminiscence, and processed by using pc or …
Published in Current Trends in Signal Processing · Vol. 12, Issue 3, 2022 · pp. 12–16 Read article