basic information about image files and why we use lots of kinds image file formats.
Some key terms like pixels, pixel depths, resolution, monochore, grayscale and colored images which will be used in the next sections of the presentation.
Basic compression methods which are used in image compression and give information about lossy/lossles images.
JPEG, PNG, GIF and BMP detailed
basic information about image files and why we use lots of kinds image file formats.
Some key terms like pixels, pixel depths, resolution, monochore, grayscale and colored images which will be used in the next sections of the presentation.
Basic compression methods which are used in image compression and give information about lossy/lossles images.
JPEG, PNG, GIF and BMP detailed
Not knowing the difference between a Bitmap and Vector image could mean that your visual content leaves you looking unprofessional. Check out the differences in this presentation.
Not knowing the difference between a Bitmap and Vector image could mean that your visual content leaves you looking unprofessional. Check out the differences in this presentation.
Underwater Photography - What I've learned So FarPaul Naish
I've combined my loves of photography and scuba diving. This is an attempt at sharing some of the lessons learned through classes and private workshop with Cathy Church in the Grand Cayman Islands. A PDF of the notes will be posted shortly to http://paul.naishfamily.net
Effective Pixel Interpolation for Image Super ResolutionIOSR Journals
In the near future, there is an eminent demand for High Resolution images. In order to fulfil this
demand, Super Resolution (SR) is an approach used to renovate High Resolution (HR) image from one or more
Low Resolution (LR) images. The aspiration of SR is to dig up the self-sufficient information from each LR
image in that set and combine the information into a single HR image. Conventional interpolation methods can
produce sharp edges; however, they are approximators and tend to weaken fine structure. In order to overcome
the drawback, a new approach of Effective Pixel Interpolation method is incorporated. It has been numerically
verified that the resulting algorithm reinstate sharp edges and enhance fine structures satisfactorily,
outperforming conventional methods. The suggested algorithm has also proved efficient enough to be applicable
for real-time processing for resolution enhancement of image. Statistical examples are shown to verify the claim.
Image fusion technology is also used to fuse two processed images obtained through the algorithm
Growth Hacking Asia's presentation on Facebook Advertising. Learn how to set up a landing page to direct your ads to, plus the specifics of ads like lookalike and custom audiences.
Palestra apresentada no #TDC2013 em Florianópolis na trilha de Embedded e Mobile. Tópicos abordados focados nos desenvolvedores e como podem encurtar a comunicação com os designers de seus projetos, evitando o retrabalho no desenvolvimento, agilizando testes de interface e melhorando a experiência do usuário fazendo algo bacana sem deixar de lado as guidelines, focado em Android e iOS.
Presentation on HDTV Technology and Scanning Techniques
1) Progressive and interlaced
2) Broadcasting System
3) Aspect Ratio
4) Frame Rate
5) Pixels
6) Frame
7) CRT and HDTV
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
3. What is PIXEL?
It is the smallest controllable element of a picture represented on the screen.
This example shows an image with a portion greatly enlarged, in which the individual pixels are
rendered as small squares and can easily be seen.
4. PIXEL need not to be square.
A pixel does not need to be rendered as a small square.
USING DOTS USING LINES USING SMOOTH FILTERING
This image shows alternative ways of reconstructing an image from a set of pixel values, using
dots, lines, or smooth filtering.
5. Pixel resolution
Resolution is the capability of the sensor to observe or measure the smallest object clearly
with distinct boundaries.
There is a difference between the resolution and a pixel.
A pixel is actually a unit of the digital image.
Resolution depends upon the size of the pixel.
With a given lens setting the smaller the size of the pixel, the higher the resolution will be and
the clearer the object in the image will be.
Images having smaller pixel sizes occupy more space on the disk.
6. Using pixels as a measure of resolution.
The term "pixels" can be used in the abstract, or as a unit of measure.
In particular when using pixels as a measure of resolution, such as: 2400 pixels per inch, 640
pixels per line, or spaced 10 pixels apart……..
The measures dots per inch (dpi) and pixels per inch (ppi) are sometimes used
interchangeably, but have distinct meanings, especially for printer devices, where;
dpi is a measure of the printer's density of dot (e.g. ink droplet) placement. For example, a
high-quality photographic image may be printed with 600 ppi on a 1200 dpi inkjet printer.
Even higher dpi numbers, such as the 4800 dpi quoted by printer manufacturers since 2002,
do not mean much in terms of achievable resolution.
8. Image resolution
Image resolution is the detail an image holds.
Higher resolution means more image detail.
Image resolution can be measured in various ways.
Basically, resolution quantifies how close lines can be to each other and still
be visibly resolved.
A resolution 10 lines per millimeter means 5 dark lines alternating with 5 light
lines, or 5 line pairs per millimeter (5 LP/mm)
9. Below is an illustration of how the same image might appear at different
pixel resolutions, if the pixels were poorly rendered as sharp squares.
An image that is 2048 pixels in width and 1536 pixels in height has a total of 2048×1536 = 3,145,728 pixels
or 3.1 megapixels. One could refer to it as 2048 by 1536 or a 3.1-megapixel image.
11. Display resolution
The display resolution of a Display resolution, computer monitor or display device is the
number of distinct pixels in each dimension that can be displayed.
It can be an ambiguous term especially as the displayed resolution is controlled by different
factors in cathode ray tube(CRT), flat-panel display which includes liquid-crystal displays, or
projection displays using fixed picture-element (pixel) arrays.
It is usually quoted as width × height, with the units in pixels: for example, "1024 × 768" means
the width is 1024 pixels and the height is 768 pixels.
This example would normally be spoken as "ten twenty-four by seven sixty-eight" or "ten
twenty-four by seven six eight".
13. What is the difference between SD, HD,
XHD, and 4K?
SD = Standard Definition = 480 interlaced lines (your old tube TV)
ED = Enhanced Definition = 480 progressive lines (DVD Quality)
HD = High Definition = could mean any of the following
720p = 720 progressive lines (broadcast quality)
1080i = 1080 interlaced (also broadcast quality)
1080p = 1080 progressive lines (Bluray quality) highest quality for home theatre (double the resolution of 720p)
4K = 4K = high end movie theaters. If you saw District 9, or The Social Network, those were both filmed in 4k (instead
of standard film). 4 times the resolution of 1080p. They've made 4K sets by combining 4 1080p screens.
XHD = Extremely High Definition = 16x the resolution of 1080p. Largely theoretical.
You can't buy it for your house, or view it in the theatre.
14. Terminologies
The "p" in 720p and 1080p refers to "progressive," which means a solid line of pixels across the
screen.
1080i, on the other hand, means "interlaced," in which the odd pixels are shown on one scan
of the screen and the even pixels on the next (the TV screen is scanned 60 times per second).
The numbers themselves refer to the number of horizontal pixels the image resolution depicts,
which is important when you want to differentiate between formats.
15. 1080p
The designation 1080p represents 1,080 vertical lines on your screen.
The “p” stands for “progressive”, which means that all 1,080 vertical lines are shown at the
same time.
When you add in the horizontal dimensions of 16:9 the total pixels number around two
million.
The quality of the visuals is divided equally between our two eyes.
This means that although you do see a higher-quality picture than was once available on the
old cathode ray tube sets of yesteryear, your mind still only sees half of the resolution per eye.
This significantly reduces the clarity of what you are seeing.
16. 4k
With the new Ultra High-Definition 4K televisions the lines are counted horizontally at 4,320
lines.
The total pixels on such a television are just over eight million.
This means that each eye is able to see a full high-definition image, essentially if each eye were
individually tuned to a 1080p screen.
The quality far exceeds that we have in our old high def TVs, and makes advancements such as
three dimensional imagery possible.
This means that essentially 4k UHD TVs have 4 times more detail than Full HD 1080p.
19. Facts
Well 4K in the world of the professionals who do this, and you say "4K," it
means you have 4096 red, 4096 green and 4096 blue photo sites.
In other words...
In order to get RGB out of a Bayer pattern you need two lines.
Because you only have green plus one color (red) on one line, and green plus
the other color (blue) on the other line.
You then have to interpolate the colors that are missing from surrounding
pixels.
20. To create a single RGB pixel, there must be
an equal number of each color
21. Megapixel
This term refers to the size of an image, usually in reference to a photo from a
digital camera or camera phone.
Megapixel means one million pixels. The resolution of digital cameras and
camera phones is often measured in megapixels. For example, a 5-megapixel
camera can produce images with five million total pixels.
Since pixels are usually square and form a grid, a 1-megapixel camera will
produce an image roughly 1200 pixels wide by 900 pixels high.
Rather, high-megapixel cameras are most useful for taking photos suitable for
viewing on a PC and/or printing.
However, more megapixels do matter when viewed on a phone, when zooming
in or cropping a photo
22. . For example, some phones with 20 or more megapixels let users "zoom in" without losing
quality, without an optical zoom lens. They do this by simply cropping a high-quality 8-megapixel
photo from the center of the 41-megapixel image captured by the camera (for example.)
Photos with more megapixels are larger in file size, and therefore can take longer - and cost
more - to send over the network at full size.
Most cameras and camera phones have an option to take photos at lower resolution (smaller),
if desired.
This is useful for taking photos that will only be sent via MMS and not transferred to a PC or
printed.
23. Thank you
Created by: VISHAL MISTRY
FB: https://www.facebook.com/vishal.mistry.1447
Twitter: www.twitter.com/@199449910