"He" Had Me at Blue: Color Theory and Visual
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Know the Color Wheel Primary Color
Introduction to Color/Hue Theory With Marlene Oaks Color affects us psychologically in nature, clothing, quilts, art and in decorating. The color choices we make create varying responses. Being able to use colors consciously and harmoniously can help us create spectacular results. Know the Color Wheel Primary color Primary color Primary color The color wheel is the basic tool for combining colors. The first circular color diagram was designed by Sir Isaac Newton in 1666. Primary, Secondary and Tertiary Colors Color theory in regards to light says that all colors are within white light—think prism, and black is devoid of color. In pigment theory, white is the absence of color & black contains all colors. We will be discussing pigment theory here. The primary colors are red, yellow and blue and most other colors can be made by various combinations of them along with the neutrals. The three secondary colors (green, orange and purple) are created by mixing two primary colors. Another six tertiary colors are created by mixing primary and secondary colors adjacent to each other. The above illustration shows the color circle with the primary, secondary and tertiary colors. 1 Warm and cool colors The color circle can be divided into warm and cool colors. Warm colors are energizing and appear to come forward. Cool colors give an impression of calm, and appear to recede. White, black and gray are considered to be neutral. Tints - adding white to a pure hue: Terms about Shades - adding black to a pure hue: hue also known as color Tones - adding gray to a pure hue: Test for color blindness NOTE: Color theory is vast. -
Several Color Appearance Phenomena in Color Reproduction
2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT-2012) Several Color Appearance Phenomena in Color Reproduction Qin-ling Dai1,a, Xiao-zhou Li2*,b, Ai Xu2 1 School of Materials Engineering (Southwest Forestry University), Kunming, China 650224 2 Key Laboratory of Pulp & Paper Science and Technology (Shandong Polytechnic University), Ministry of Education, Ji’nan, China, 250353 [email protected], bcorresponding author: [email protected] Keywords: color reproduction, color appearance, color appearance phenomena Abstract. Color perceived performance was influenced by various color appearance phenomena caused by varying viewing conditions in color reproduction process. It is necessary to do some research on the color appearance phenomena to represent the color appearance models qualitatively and quantitatively and accurate color reproduction easily. Only the phenomena were studied thoroughly, could the color transmission and reproduction be well performed. The color appearance and common color appearance phenomena of color reproduction were analyzed in this paper. And the basic theory of color appearance in color reproduction was also studied. Introduction High fidelity digital printing plays an important role in high fidelity color transmission and reproduction and it is one of the most important techniques to perform high fidelity color reproduction. High fidelity digital printing helps to perform accurate color reproduction of the original which can’t be performed because of paper and ink in traditional printing process [1]. In color printing, the color difference caused by paper, ink and viewing conditions is various. The difference is not only colorimetric difference but also different color appearance phenomena. While the different color appearance phenomenon is the leading factor to influence the color vision perceived. -
Color Constancy and Contextual Effects on Color Appearance
Chapter 6 Color Constancy and Contextual Effects on Color Appearance Maria Olkkonen and Vebjørn Ekroll Abstract Color is a useful cue to object properties such as object identity and state (e.g., edibility), and color information supports important communicative functions. Although the perceived color of objects is related to their physical surface properties, this relationship is not straightforward. The ambiguity in perceived color arises because the light entering the eyes contains information about both surface reflectance and prevailing illumination. The challenge of color constancy is to estimate surface reflectance from this mixed signal. In addition to illumination, the spatial context of an object may also affect its color appearance. In this chapter, we discuss how viewing context affects color percepts. We highlight some important results from previous research, and move on to discuss what could help us make further progress in the field. Some promising avenues for future research include using individual differences to help in theory development, and integrating more naturalistic scenes and tasks along with model comparison into color constancy and color appearance research. Keywords Color perception • Color constancy • Color appearance • Context • Psychophysics • Individual differences 6.1 Introduction Color is a useful cue to object properties such as object identity and state (e.g., edibility), and color information supports important communicative functions [1]. Although the perceived color of objects is related to their physical surface properties, M. Olkkonen, M.A. (Psych), Dr. rer. nat. (*) Department of Psychology, Science Laboratories, Durham University, South Road, Durham DH1 3LE, UK Institute of Behavioural Sciences, University of Helsinki, Siltavuorenpenger 1A, 00014 Helsinki, Finland e-mail: [email protected]; maria.olkkonen@helsinki.fi V. -
Geography 222 – Color Theory in GIS Mike Pesses, Antelope Valley College
Geography 222 – Color Theory in GIS Mike Pesses, Antelope Valley College Introduction Color is a fundamental part of cartography. We have conventions that we learn early on in school; water should be blue, vegetation should be green. At the same time, we do not want to limit ourselves. While a magenta ocean may be a bit much, we can experiment with alternatives to convey a certain feeling for the map. Conventional light blue and tan world maps can feel a bit dull, whereas an “earthier” color scheme can get us thinking about exploration and piracy. A slight change in color can have major results. Color may seem like a simple enough concept, but its reproduction on paper, a television, or on a computer screen is an incredible science. To properly use color from a design standpoint, we must have at least a basic understanding of how it is produced. Color Systems Red, Green, Blue or RGB is the color system of televisions and computer screens. By simply mixing the proportions of red, green, and blue lights in screens, we can display a wealth of colors. We call this an additive system in that we add colors to make new ones. For example, if we mix red and green light, we get yellow. Mixing green and blue will produce cyan. Red and blue will make magenta. Red, green, and blue mixed together will produce white. Keep in mind that this is different from when you mixed paints in kindergarten. Mixing red, green, and blue paint will get you ‐1- Geog 222 – Color Theory in GIS, pg. -
Color Theory
color theory What is color theory? Color Theory is a set of principles used to create harmonious color combinations. Color relationships can be visually represented with a color wheel — the color spectrum wrapped onto a circle. The color wheel is a visual representation of color theory: According to color theory, harmonious color combinations use any two colors opposite each other on the color wheel, any three colors equally spaced around the color wheel forming a triangle, or any four colors forming a rectangle (actually, two pairs of colors opposite each other). The harmonious color combinations are called color schemes – sometimes the term 'color harmonies' is also used. Color schemes remain harmonious regardless of the rotation angle. Monochromatic Color Scheme The monochromatic color scheme uses variations in lightness and saturation of a single color. This scheme looks clean and elegant. Monochromatic colors go well together, producing a soothing effect. The monochromatic scheme is very easy on the eyes, especially with blue or green hues. Analogous Color Scheme The analogous color scheme uses colors that are adjacent to each other on the color wheel. One color is used as a dominant color while others are used to enrich the scheme. The analogous scheme is similar to the monochromatic, but offers more nuances. Complementary Color Scheme The complementary color scheme consists of two colors that are opposite each other on the color wheel. This scheme looks best when you place a warm color against a cool color, for example, red versus green-blue. This scheme is intrinsically high-contrast. Split Complementary Color Scheme The split complementary scheme is a variation of the standard complementary scheme. -
Middle School Science Experiment Color Theory
Middle School Science Experiment Color Theory The human eye distinguishes colors using light sensitive cells in the retina. These sensors are rods and cones. The rods give us our night vision and can function in low intensities of light, but cannot distinguish color. The cones let us see color and can resolve sharp images. The light we see, such as the light from the sun, is made up of a mixture of several colors. You will learn more about light as well as about primary and secondary colors in this experiment. Objectives In this experiment, you will: m Gain an understanding of primary and secondary colors m Learn about how a mixture of colors makes up white light m Experiment with the mixing of paint that uses pigments, not light m Take pictures of various colors and compare them when they are mixed and separated Materials m Power Macintosh G3 or better m ProScope Digital USB Microscope and software m Red, blue, and green cellophane or plastic filters m Three flashlights m Red, yellow, and blue watercolor paint m Paintbrush m Water Procedure The first activities involve light and primary colors: 1 Cover one flashlight with red cellophane, one with blue cellophane, and one with green cellophane. (You can use red, blue, and green plastic filters instead of the cellophane.) Darken the room and set up the ProScope USB microscope on the tripod pointing at a piece of white unlined paper. 2 Shine the green flashlight at the white paper. Take a picture of this image using the m0W lens. -
Color Theory for Photographers As Photographers, We Have a Lot of Tools Available to Us: Compositional Rules, Lighting Knowledge, and So On
Color Theory for Photographers As photographers, we have a lot of tools available to us: compositional rules, lighting knowledge, and so on. Color is just another one of those tools. Knowing and understanding color theory — the way painters, designers, and artists of all trades do — a photographer can utilize color to their benefit. Order of colors This may cause some flashbacks to elementary school art class, but let’s start at the beginning: The orders of colors. There are three orders: Primary, Secondary, and Tertiary colors. The primary colors are red, yellow, and blue. That is to say, they are the three pure colors from which all other colors are derived. If we take two primary colors and add combine them equally, we get a secondary color. Finally, a tertiary color is one which is a combination of a primary and secondary color. Primary Colors: Red, yellow, and blue are what we call “pure colors.” They are not created by the combining of other colors. Secondary Colors: A 50/50 combination of any two primary colors. Example: Red + Yellow = Orange. Tertiary Colors: A 25/75 or 75/25 combination of a primary color and secondary color. Example: Blue + Green = Turquoise. Now, how do the orders of colors help a photographer? Well, by knowing the three orders, we can make decisions about which colors we want to show in frame. The Three Variables of Color Now that we’ve been introduced to the orders of the colors, let’s look at their variables. Let’s start with hue. Hue Hue simply is the shade or name of the color. -
Color Appreciation
Col or Appreciation presented by Dave Watterson Art Director, GATF Color Appreciation • Color theory • Additive color system • Subtractive color system • Color communication • Color viewing Color •A phenomenon of light •A visual sensation Phenomenon •Known through the senses, rather than through thought or intuition Theory •A scientifically acceptable general principle offered to explain phenomenon •An unproved assumption Color • All color is in light •Without light there is no color •Light is radiant or electromagnetic energy • The absence of light is black The Physical Origins of Color • Rods––A type of nerve ending in the eye that is sensitive to low levels of light. Responsible for night vision. • Cones––A type of nerve ending in the eye that can distinguish between the individual components of light. •This ability to distinguish between the individual components of the light creates the sensation we call color. If you had no cones in your eyes, color would not exist. Rods and Cones Color • If an ideal white light were perfectly dissected by the use of a prism, it would reveal three beams known as the primary colors of light • We have been taught to call these visual sensations by the names red, green and blue • Nearly every color you see can be created by a combination of red, green and blue light Color • Visible light has been classified as the narrow range of electromagnetic energy located near the center of the electromagnetic spectrum • The human eye is sensitive to only a portion of this electro- magnetic range, which we call -
COLOR THEORY Pigment Color Light Color
COLOR THEORY Color Coding: The Color Wheel A color wheel is a tool that helps artists and others learn and visualize color relationships; it shows how primary colors can combine to create many other colors. Pigment Color An artist's traditional color wheel has 12 colors: 3 primary, 3 secondary, and 6 tertiary. Some materials let certain colors pass through them, and absorb other colors. These materials are called dyes or pigments. The primary colors of pigment are red, blue, and yellow. Mixing these primary colors of pigment gives us the three secondary colors: red+blue=violet, red+yellow=orange, and yellow+blue=green. Then, the primary colors mixed with the secondary give us the tertiary. They are: red- violet, red-orange, yellow-orange, yellow-green, blue-green, and blue-violet. Light Color The primary colors of light are red, blue, and green, and the secondary are yellow, cyan, and magenta. It is very important to know that mixing pigment and mixing light are very different. Red and green paint, for example, make brown paint, but red and green light make yellow light. When beams of light are mixed without any absorption, an additive process occurs. The more we mix the beams, the closer they get to being white light. However, when we put light through a color filter, a subtractive process occurs. Some wavelengths of light are being absorbed (subtracted) and we only see the wavelengths that are selectively given off. The Additive and Subtractive Models are explained further below. . -
SIGGRAPH Course Notes
A Survey of Color for Computer Graphics Maureen C. Stone StoneSoup Consulting Course 4 SIGGRAPH 2001 August 12, 2001 A Survey of Color for Computer Graphics SIGGRAPH 2001 Description This course will survey color disciplines relevant to Computer Graphics ranging from color vision to color design. Participants should leave with a clear overview of the world of digital color, plus pointers to in-depth references on a wide range of color topics. For each topic, a brief overview and pointers to further informa- tion will be provided. For most topics, I will suggest a standard reference book or two, augmented by published articles as needed. The course should be of value both to those seeking an introduction to color in computer graphics and to those knowledgeable in some aspects of color who wish to get a broader view of the field. Presenter Maureen Stone is an independent consultant working in the areas of digital color, large format displays, web graphics, interaction and design. Before founding StoneSoup Consulting, she spent 20 years at the Xerox Palo Alto Research Center where she attained the position of Principal Scientist. She has over 30 published papers plus 12 patents on topics including digital color, user interface technology and computer graphics. She has taught in SIGGRAPH digital color courses organ- ized by William Cowan (SIGGRAPH '89) and Charles Poynton (SIGGRAPH '97), and first presented this survey course at SIGGRAPH '99. She has a BS and MS in Electrical Engineering from the University of Illinois, and a MS in Com- puter Science from Caltech. Contact Information Maureen Stone StoneSoup Consulting 650-559-9280 http://www.stonesc.com [email protected] Maureen C. -
Historic Look on Color Theory Steele R
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by ScholarsArchive at Johnson & Wales University Johnson & Wales University ScholarsArchive@JWU Honors Theses - Providence Campus College of Arts & Sciences 9-2018 Historic Look on Color Theory Steele R. Stokley Johnson & Wales University - Providence, [email protected] Follow this and additional works at: https://scholarsarchive.jwu.edu/student_scholarship Part of the Arts and Humanities Commons Repository Citation Stokley, Steele R., "Historic Look on Color Theory" (2018). Honors Theses - Providence Campus. 30. https://scholarsarchive.jwu.edu/student_scholarship/30 This Honors Thesis is brought to you for free and open access by the College of Arts & Sciences at ScholarsArchive@JWU. It has been accepted for inclusion in Honors Theses - Providence Campus by an authorized administrator of ScholarsArchive@JWU. For more information, please contact [email protected]. Historic Look on Color Theory By Rose Stokley Advisors: Kristi Girdharry, Don Kaczmarczyk, & Wendy Wagner September 2018 Submitted in partial fulfillment of the requirements for the University Honors Scholar designation at Johnson & Wales University Stokley 1 Table of Contents I. Abstract Page 2 II. Introduction to Color Science Page 3 III. Historical Context Page 7 IV. Color Elucidated Page 24 V. Color Interactions Page 29 VI. Conclusion Page 41 VII. Works Cited Page 43 Stokley 2 I. Abstract The science of color is called chromatics, colorimetry, or color science. This field of science includes the perception of color by the human eye, origin of colors, art theory, therapy, the psychics of electromagnetic radiation, and effects on the brain (Azeemi). Experts throughout time have desired to decipher the composition of color to explain how and why humans are able to see colors in order to use them in numerous disciplines; from scientific to artistic. -
Color Theory in Design
Color Theory By JoAnn Brehm PNWD Arrangement Seminar, Oct 28, 2016 Color Theory is a set of principles used to create harmonious color combinations. Color relationships can be visually represented with a color wheel — the color spectrum wrapped onto a circle. Color is the most important and influential element of design. Color is the visual response to reflected light rays and triggers emotional response. There are three Primary Colors: Red, Yellow, & Blue There are three Secondary Colors (made of an equal mixture of two primary colors): Red & Yellow = Orange, Yellow & Blue = Green, Red & Blue = Violet There are six Tertiary/Intermediate Colors (made of an equal mixture of a primary and secondary color): Example: Red & Orange = Red Orange FACTORS OF COLOR 1. Hue, which is synonymous with the word color, is the name of a color. Each color has the physical properties of value and chroma. 2. Value is a color’s lightness or darkness. a. Tint is a light value and is achieved by adding white to the hue. Pink is a tint of red. b. Shade is a dark value, achieved by adding black to the hue. Burgundy is a shade of red. 3. Chroma is the brightness or dullness of a hue, the degree of intensity or grayness, the purity of a color. a. Tone is a color with neutral gray or a complementary color added, to make it dull. Dusty rose is a tone of pink. A color of high intensity has no gray or complementary color added. (BRIGHTNESS) THE THREE AXIS OF COLOR (contributed by John Moe) Note: Judging guidelines use the term brightness vs.