This document provides an overview of color theory concepts including:
- Color is caused by the spectral composition of light emitted, transmitted, or reflected by objects.
- Sir Isaac Newton observed that white light is a mixture of color rays when refracted through a prism.
- Goethe and Chevreul studied how color is perceived and influenced by surrounding colors.
- The three properties of color are hue (name of color), value (lightness or darkness), and intensity (brightness or saturation). Changing these properties affects how colors are mixed and perceived.
- Color wheels are used to understand how complementary colors interact when mixed to create other hues, tones, and shades.
A brief overview of the gestalt principle of figure and ground. This presentation delves into its importance with relationship to art and design - not only in black and white but also in color.
A brief overview of the gestalt principle of figure and ground. This presentation delves into its importance with relationship to art and design - not only in black and white but also in color.
Color is one of the most expressive elements because
its quality affects our emotions directly and immediately.
This presentation has all about the colors & it's theory includes about the colors, history, Physiological Principles of Color etc.
L'impact des présentations de vente peut être amélioré en utilisant la roue des couleurs, qui est un outil intégré à Powerpoit et Keynotes, mais que la plupart des commerciaux ignorent.
Color is one of the most expressive elements because
its quality affects our emotions directly and immediately.
This presentation has all about the colors & it's theory includes about the colors, history, Physiological Principles of Color etc.
L'impact des présentations de vente peut être amélioré en utilisant la roue des couleurs, qui est un outil intégré à Powerpoit et Keynotes, mais que la plupart des commerciaux ignorent.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
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.
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Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
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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.
UiPath Test Automation using UiPath Test Suite series, part 5DianaGray10
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In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
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Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
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We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
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However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
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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/
5. Pablo Picasso said,
"Colors are only symbols. Reality is to be
found in luminance alone." He also said,
"When I run out of blue, I use red."
6. Sir Isaac Newton (1643-
1727), English
mathematician and
physicist observed the
phenomenon of light
refracted by a glass
prism and concluded
that white light is a
mixture of varied color
rays.
7.
8. Johann Wolfgang von
Goethe (1749-1832), poet
and author of Faust,
published Theory of Colours
in 1810. As a color theorist,
he was more interested in
how we perceive color.
9. Michel Eugène Chevreul (1786-
1889) wrote The Principles of
Harmony and Contrast of
Colours and Their Applications
to the Arts.
He observed that the colors we
perceive are influenced by
surrounding colors leading to the
idea of simultaneous contrast.
10. Color originates in light.
Sunlight, as we perceive it, looks colorless.
In reality, all the colors of the spectrum are present in white light.
11. 1. All the" invisible" colors of sunlight shine on the apple.
2. The surface of a red apple absorbs all the colored light
rays, except for those corresponding to red, and reflects
this color to the human eye. Environment & Perception
also play into our interpretation of this color.
3. The eye receives the reflected red light and sends a
message to the brain.
12.
13. When light hits the surface,
the BLUE paint ABSORBS all
the light EXCEPT the blue
part of the spectrum.
15. Properties of Color
• HUE
• VALUE
• INTENSITY (or saturation)
(Hate Videogames Immensely)
16. Properties of Color
HUE - the name of the color, the part
of the color spectrum that the color
belongs to: Red, orange, yellow,
green, blue, or violet.
Color is a microconsciousness. Like our senses of taste and smell, color helps us to understand the world around us. What is real is that objects emit light in various mixtures of wavelengths. Our minds perceive those wavelength mixtures as a phenomenon we call color, and this perception creates questions that color theory tries to explain.
We perceive color just as we perceive taste. When we eat, our taste buds sense four attributes: sweet, salty, sour and bitter. Similarly, when we look at a scene, our visual nerves register color in terms of the attributes of color: the amount of green-or-red; the amount of blue-or-yellow; and the brightness.
Note that these attributes are opposites , like hot and cold. Color nerves sense green or red — but never both; and blue or yellow — but never both. Thus, we never see bluish-yellows or reddish-greens. The opposition of these colors forms the basis of color vision.
Opticks is a book by English natural philosopher Isaac Newton that was published in English in 1704
Until Johann Wolfgang von Goethe came along, no one had questioned the validity of Newton’s ideas about light and color. Newton used math to explain light and color; Goethe used experience to explain. Goethe reformulates the topic of color in an entirely new way. Newton had viewed color as a physical problem, involving light striking objects and entering our eyes. Goethe realizes that the sensations of color reaching our brain are also shaped by our perception — by the mechanics of human vision and by the way our brains process information. Goethe seeks to derive laws of color harmony, ways of characterizing physiological colors (how colors affect us) and subjective visual phenomena in general
After being named director of the dye works at the Gobelins Manufactory in Paris, he received many complaints about the dyes being used there. In particular, the blacks appeared different when used next to blues. He determined that the yarn's perceived color was influenced by other surrounding yarns. This led to a concept known as simultaneous contrast .
here are approximately 6 million cones in our retina, and they are sensitive to a wide range of brightness. The three different types of cones are sensitive to short, medium and long wavelengths, respectively, shown in the figure below. (Additionally, we have approximately 125 million rods on the retina, which are used only in dim light, and are monochromatic – black and white.) The result of these steps for color vision is a signal that is sent to the brain. There are three signals, corresponding to the three color attributes. These are: the amount of green-or-red; the amount of blue-or-yellow; and the brightness.
The amount of light of any given wavelength reflected from a surface constantly changes, depending upon the type of light, or illuminant, in which it is viewed. We perceive the color of a surface to be the same, even though there are changes in shade. The world would be a confusing place if the color of a surface changed with every change in the wavelength composition of the light reflected from it. We would be unable to categorize color-related properties in the same way, and color would cease to be an efficient biological signaling mechanism. The brain is able to discount the effect of the continual change in the wavelength composition of the light reflected from a surface. This stability in color as we perceive it allows the brain to obtain knowledge about the properties of surfaces, despite continual variations in what reaches the eye from those surfaces.
Ewald Hering (1834-1918) devised the first accurate theory of color vision. He theorized the “opponent” nature of green/red and blue/yellow. Hering expanded on the ideas of Goethe and Schoepenauer. Beginning of RGB model
He arrived at the concept of the color sphere sometime in 1807, as indicated in his letter to Goethe of November 21 of that year, by expanding the hue circle into a sphere, with white and black forming the two opposing poles.
If you mix red, green, and blue light, you get white light . Red, green, and blue (RGB) are referred to as the primary colors of light. Mixing the colors generates new colors. This is additive color . As more colors are added, the result becomes lighter, heading towards white. RGB is used to generate color on a computer screen, a TV, and any colored electronic display device.
When you mix colors using paint , or through the printing process, you are using the subtractive color method. The primary colors of light are red, green, and blue. If you subtract these from white you get cyan, magenta, and yellow. Mixing the colors generates new colors as shown on the color wheel. Mixing these three primary colors generates black. As you mix colors, they tend to get darker, ending up as black. The CMYK color system (cyan, magenta, yellow, and black) is the color system used for printing.