Color photography experiments involving RGB commenced during the early 1860s, wherein three color-filtered separate takes were merged together. Since most standard cameras record the same RGB brands, the images they produce are nearly identical to what our eyes perceive.
Combining Red and Green: What Color Do They Create?
The RGB color model generates a variety of colors by stimulating multiple cone cells at once through the combination of primary colors. For more information on these colors, please refer to the following source. The color of platinum compounds is predominantly brown or red.
Table of contents
- Algorithm for Additive Color Mixing for RGB Values
- Other blood colors
- RGB Color Model
- What do you get when you combine red and green?
- What colors mixed make green?
- What colors go with green?
- What colors do you mix to get a different color?
Algorithm for Additive Color Mixing for RGB Values
Solution 1:
These equations can be utilized for alpha channel blending.
r = new Color(); r.A = 1 - (1 - fg.A) * (1 - bg.A); if (r.A < 1.0e-6) return r; // Fully transparent -- R,G,B not important r.R = fg.R * fg.A / r.A + bg.R * bg.A * (1 - fg.A) / r.A; r.G = fg.G * fg.A / r.A + bg.G * bg.A * (1 - fg.A) / r.A; r.B = fg.B * fg.A / r.A + bg.B * bg.A * (1 - fg.A) / r.A; The paint color is identified by the code fg , while the background is represented by bg . When these two colors are combined, they result in the color identified by r . To account for any rounding errors, the code 1.0e-6 is used, which is a very small number.
It should be noted that the variables utilized in this context fall within the range of 0.0 to 1.0. In case you require values within the range of 0 to 255, you must perform division or multiplication by 255.
An instance of this would be combining 50% green with 50% red.
// background, 50% green var bg = new Color < R = 0.00, G = 1.00, B = 0.00, A = 0.50 >; // paint, 50% red var fg = new Color < R = 1.00, G = 0.00, B = 0.00, A = 0.50 >; // The result var r = new Color(); r.A = 1 - (1 - fg.A) * (1 - bg.A); // 0.75 r.R = fg.R * fg.A / r.A + bg.R * bg.A * (1 - fg.A) / r.A; // 0.67 r.G = fg.G * fg.A / r.A + bg.G * bg.A * (1 - fg.A) / r.A; // 0.33 r.B = fg.B * fg.A / r.A + bg.B * bg.A * (1 - fg.A) / r.A; // 0.00 The end color is (0.67, 0.33, 0.00, 0.75) , which can also be described as being 75% brown or dark orange.
It's also possible to invert these equations.
var bg = new Color(); if (1 - fg.A var fg = new Color(); if (1 - bg.A The provided formulas will compute the value of either the background or paint color required to generate the specified resulting color.
When the background is opaque, the output will also be opaque. In such a scenario, the foreground color may vary in alpha value. To determine the valid values (ranging from 0 to 1) for each channel (red, green, and blue), you need to examine the range of alphas.
Understanding the Power of CSS Flex.
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Solution 2:
The choice of method depends on your preference, and it may be beneficial to compare the outcomes of various techniques.
Red + Black = Red Red + Green = Yellow Red + Green + Blue = White Red + White = White Black + White = White
Utilizing a clamp, such as min(r1 + r2, 255) , is effective. This method aligns with the lighter model you mentioned.
Red + Black = Dark Red Red + Green = Dark Yellow Red + Green + Blue = Dark Gray Red + White = Pink Black + White = Gray
To create gradients and adjust color brightness, it is necessary to calculate the average of the values such as (r1 + r2) / 2 .
Solution 3:
Did you know that the RGB values of computers are calculated using the square root of photon flux? Therefore, when creating a general function, it is important to consider this factor. The function for a specific channel can be expressed as follows:
blendColorValue(a, b, t) return sqrt((1 - t) * a^2 + t * b^2) To blend colors a and b, you can use a number from 0-1 denoted by t to determine the desired point in the blend between a and b.
The alpha channel serves a distinct purpose as it does not indicate the intensity of photons. Instead, it denotes the percentage of the background that should remain visible. Hence, when blending alpha values, a linear average suffices.
blendAlphaValue(a, b, t) return (1-t)*a + t*b; To manage the fusion of two colors using the mentioned functions, the below pseudocode can be implemented effectively.
blendColors(c1, c2, t) ret [r, g, b].each n -> ret[n] = blendColorValue(c1[n], c2[n], t) ret.alpha = blendAlphaValue(c1.alpha, c2.alpha, t) return ret I am in search of a programming language and keyboard that allows for clear representation of mathematical expressions, including superscripts, symbols, and various characters, and accurate interpretation. The current use of the combining overline unicode character is insufficient for this purpose. For example, the expression sqrt((1-t)*pow(a, 2) + t * pow(b, 2)) appears messy and difficult to read.
Mix It Up White and Red 2, This video follows on from Mix It Up White and Red 1. It shows what happens when you mix red and white together and makes pink.
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Mixing colors red green
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Play-Doh learning colors - Mixing Blue + Green + Red
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Green and Red make Yellow
Green and Red make Yellow. A demonstration of how with additive color red and green make yellow. Additive color (color with light) has a different color wheel …
Other blood colors
Solution 1:
In the terrestrial biosphere, several proteins are responsible for the transportation of oxygen.
It is worth mentioning that under the typical conditions of human body temperature, atmospheric pressure, and Earth's oxygen concentration, Hemoglobin stands out as the most effective oxygen transporter compared to the other molecules mentioned in this post. Its efficiency ranges from 50% to 10 times higher than the others.
Hemoglobin
Hemoglobin, which is commonly known for its red color, employs iron as its metallic element.
Hemocyanin
Hemocyanin, a protein similar but not identical to hemoglobin, is present in specific mollusks. It appears colorless when not transporting oxygen but turns blue when it does so. The protein structure of hemocyanin involves two copper atoms.
Chlorocruorin
Chlorocruorin employs $Fe^$ as its metallic element.
Chlorocruorin, a dichromatic compound, exhibits a green color in diluted solutions, but a light red hue in concentrated solutions.
Hemerythrin
Hemerythrin uses $Fe^$
A protein that carries oxygen and contains iron, known as Hemerythrin, is frequently located in the muscles of marine invertebrates.
Hemerythrin and myohemerythrin appear colorless in their deoxygenated state, but exhibit a violet-pink hue when oxygenated.
Erythrocruorin
An iron-bearing protein known as erythrocruorin is believed to have a light red color, though there is no clear description available.
A protein called Erythrocruorin, which has a molecular mass exceeding 3.5 million Daltons, is responsible for carrying oxygen. This protein is similar to Chlorocruorin and can be found in various arthropods and annelids, including certain insects.
Pinnaglobin
The manganese-based porphyrin protein, responsible for oxygen transport, has exclusively been observed in the mollusc Pinna squamosa, and appears brown in color.
Coboglobin
At present, Coboglobin is a man-made protein that carries out the same task as hemoglobin but with Cobalt instead of iron atoms.
This type of blood appears as amber yellow when flowing through veins, but remains uncolored and clear when circulating through arteries.
It could be a fascinating choice of fluid for synthetic life forms, similar to those depicted in the movie "Aliens".
Chloro-carbonyl-bis(tri phenylphosphine)-iridium
A molecule containing an Iridium ion from the Platinum Group Metal can change color from yellow to dull orange based on its oxygenation level. This molecule serves as a transporter of hydrogen and may be useful in the biology of gas giant planets. To utilize this molecule, an organism would need to develop a chemical pathway to generate oxygen from available chemicals and deliver it to energy-requiring cells. It may be necessary to separate the oxygen and hydrogen circulatory systems to optimize their functions.
The compound transforms from a bright yellow hue to a gloomy orange shade when it absorbs one oxygen atom per molecule while dissolved in a solution.
To safeguard the photosensitive iridium-based blood of extraterrestrials from decomposition, it needs to be protected from strong light when in an oxygenated state. The pigment undergoes a slow transformation from orange to green and ultimately to a deep bluish-black, over a period of days or weeks when exposed to strong light. Thus, such beings would either have dark skin or inhabit a poorly lit environment. However, when not exposed to light, the molecule remains stable for years.
Xenobiologists find the iridium complex particularly intriguing due to its fascinating ability to bind not only oxygen but also hydrogen in a reversible manner.
In Summary
- Pink (Iron - Hemerythrin)
- Red (Iron - many)
- The compound referred to as Iridium-chloro-carbonyl-bis(tri phenylphosphine)-iridium has an orange color.
- This refers to two elements, Cobalt and Iridium, which are respectively associated with Coboglobin and chloro-carbonyl-bis(tri phenylphosphine)-iridium. Both of these elements are colored yellow.
- Green (Iron - Chlorocruorin)
- Blue (Copper - Hemocyanin)
- Violet (Iron - Hemerythrin)
- Indicate (Cobalt - Coboglobin, Iron - Hemerythrin) with clarity.
- Brown (Manganese - Pinnaglobin)
With the exception of Cobalt and Iridium based molecules, all other molecules are present in living organisms on Earth.
Solution 2:
A significant concern regarding blood colors in your scenario is that compounds may appear dissimilar in diluted and (almost) saturated states. Blood is a prime example. Although individual "red" blood cells have a golden hue, when viewed together in large numbers, they give off a red impression. If you were to dilute blood in clear water, it would become evident that the color is indeed golden.
One major issue is the varying color of metallic compounds in their dry form versus when they combine with water to form complexes. Copper Sulphate, for instance, is white in its anhydrous state, but turns blue when it reacts with water molecules to create the CuSO4.5H2O complex.
With that being stated, presented below are a few hues selected by you.
In a solution, tin compounds in the +2 and +4 oxidation states exhibit no color.
Solute aluminum compounds also lack color.
Same for silver.
Reference for above colors
The color of platinum compounds is typically brown or red, while its oxides (+2 and +4) are black. On the other hand, platinum peroxide exhibits a golden yellow hue.
According to a reference, the color of gold oxide with a +3 charge is a reddish-brown hue.
According to the reference, the color of cobalt oxide when it has a +2 charge is olive green.
According to the reference, pure NiO appears green, while its color changes to black when the oxygen to nickel ratio is not constant in the sample. On the other hand, zinc oxide always has a white color.
As far as I am aware, no metallic oxide yields a white hue upon dissolution in water. However, it is possible for metallic complexes to produce such color. The variety of colors that these complexes can exhibit is so vast that it can drive someone crazy trying to keep track of them. A single transition metal ion, when combined with other metal ions to form a compound, can display numerous colors.
Solution 3:
The presence of a metal atom in a complex organic molecule does not solely dictate its color. A prime example of this is chlorophyll, which appears as a vivid green despite containing magnesium. It is worth noting that solutions made from magnesium salts typically lack any distinct color.
Alternatively, you could contemplate the range of hues that a bruise transforms into during the healing process, which are all produced by iron as it is extracted from blood and other tissues during the recovery phase.
On our planet, there are a few lesser-known sea worms that possess blood containing Cobalt. As expected, this type of blood has an intense blue hue.
Although some mentioned metals may not be advantageous for oxygen-transporting biomolecules, it's possible that an alien's biochemistry could include a surprising metal or color that isn't part of the transport mechanism. However, a metal that showcases two or more oxidation states that differ by one is almost certainly necessary for oxygen transport, and these types of metals can be found in the transition metals on the periodic table. Specifically, elements from vanadium to copper on the first row and corresponding elements on the two rows below exhibit these properties.
For an organism to use an element in place of Iron, it needs to be abundant enough. However, the heavier elements in the second and third rows are not common on Earth and have fewer atoms per gram. Molybdenum is the only essential element that life uses, although a few bacteria use Tungsten, it is not widely used.
Is there an algorithm for color mixing that works like, Red (Hue 0°) + Blue (Hue 240°) = Green (Hue 120°) I've figured out that sometimes I need to shift the hue value by 360° (when the difference between hues is greater than 180°). Red (Hue 360°) + Blue (Hue 240°) = Magenta/fuchsia (Hue 300°) But this shifting wasn't very good too, e.g.:
Blood Groups and Red Cell Antigens [Internet].
Dean L.
Bethesda (MD): National Center for Biotechnology Information (US); 2005.
The average human adult has more than 5 liters (6 quarts) of blood in his or her body. Blood carries oxygen and nutrients to living cells and takes away their waste products. It also delivers immune cells to fight infections and contains platelets that can form a plug in a damaged blood vessel to prevent blood loss.
Through the circulatory system, blood adapts to the body's needs. When you are exercising, your heart pumps harder and faster to provide more blood and hence oxygen to your muscles. During an infection, the blood delivers more immune cells to the site of infection, where they accumulate to ward off harmful invaders.
All of these functions make blood a precious fluid. Each year in the USA, 30 million units of blood components are transfused to patients who need them. Blood is deemed so precious that is also called "red gold" because the cells and proteins it contains can be sold for more than the cost of the same weight in gold.
This chapter introduces the components of blood.
Blood contains cells, proteins, and sugars
If a test tube of blood is left to stand for half an hour, the blood separates into three layers as the denser components sink to the bottom of the tube and fluid remains at the top.
The straw-colored fluid that forms the top layer is called plasma and forms about 60% of blood. The middle white layer is composed of white blood cells (WBCs) and platelets, and the bottom red layer is the red blood cells (RBCs). These bottom two layers of cells form about 40% of the blood.
Plasma is mainly water, but it also contains many important substances such as proteins (albumin, clotting factors, antibodies, enzymes, and hormones), sugars (glucose), and fat particles.
All of the cells found in the blood come from bone marrow. They begin their life as stem cells, and they mature into three main types of cells— RBCs, WBCs, and platelets. In turn, there are three types of WBC—lymphocytes, monocytes, and granulocytes—and three main types of granulocytes (neutrophils, eosinophils, and basophils). See them in action in "Meet the blood cells".
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Meet the blood cells.
See a figure of all the cellular elements of blood in Janeway & Traver's Immunobiology
A sample of blood can be further separated into its individual components by spinning the sample in a centrifuge. The force of the spinning causes denser elements to sink, and further processing enables the isolation of a particular protein or the isolation of a particular type of blood cell. With the use of this method, antibodies and clotting factors can be harvested from the plasma to treat immune deficiencies and bleeding disorders, respectively. Likewise, RBCs can be harvested for blood transfusion.
Red blood cells transport oxygen
Every second, 2-3 million RBCs are produced in the bone marrow and released into the circulation. Also known as erythrocytes, RBCs are the most common type of cell found in the blood, with each cubic millimeter of blood containing 4-6 million cells. With a diameter of only 6 µm, RBCs are small enough to squeeze through the smallest blood vessels. They circulate around the body for up to 120 days, at which point the old or damaged RBCs are removed from the circulation by specialized cells (macrophages) in the spleen and liver.
In humans, as in all mammals, the mature RBC lacks a nucleus. This allows the cell more room to store hemoglobin, the oxygen-binding protein, enabling the RBC to transport more oxygen. RBCs are also biconcave in shape; this shape increases their surface area for the diffusion of oxygen across their surfaces. In non-mammalian vertebrates such as birds and fish, mature RBCs do have a nucleus.
See an electron micrograph of red blood cells in Albert's
Molecular Biology of the Cell
If a patient has a low level of hemoglobin, a condition called anemia, they may appear pale because hemoglobin gives RBCs, and hence blood, their red color. They may also tire easily and feel short of breath because of the essential role of hemoglobin in transporting oxygen from the lungs to wherever it is needed around the body.
Frequently asked questions
800 - 1200nm Infrared
590nm - 630mm Amber
400 - 470nm Blue
80 dual-core Red + Blue
800 - 1200nm Infrared
590nm - 630mm Amber
400 - 470nm Blue
80 dual-core Red + Blue
Does LED light therapy really work? Is it safe for sensitive skin?
Yes! At the proper wavelengths, LED light therapy, is clinically proven to build collagen (red light) and destroy acne causing bacteria (blue light). SpectraLite™ FaceWare Pro is FDA cleared for safety and efficacy for these results.
How is red light anti-aging?
Red light works on skin much like topical ingredients do. Skin cells absorb light energy through receptors similar to the way plants absorb light energy during photosynthesis. This recharges the cell battery, improving overall cellular efficiency including collagen synthesis.
How does blue light destroy acne causing bacteria?
Blue light, at an ideal wavelength of 415nm, stimulates receptors within P. acnes bacteria causing an energy transfer that leads to free radical formation. These free radicals then destroy the P. acnes bacteria without irritating skin.
Is the Spectralite™ safe and reviewed by the FDA?
Yes, our device is FDA cleared. This means that the FDA has cleared the Spectralite™ Pro for a 3 minutes per day usage to safely and effectively treat acne and wrinkles!
Is it really safe to use LED technology near my eyes?
The Faceware Pro has been FDA- cleared to be used without protective goggles and is safe for the eyes. The mask lies directly on top of the skin and the LED lights are strategically placed at a clinically specific distance from the eye area. The device is perfectly safe to be used on the eyes and can be used with your eyes open or closed. We of course always recommend speaking with your physician first if you have any concerns regarding medical interactions with a new product and/or device or if you have any underlying eye conditions or take eye-sensitizing medications.
What makes the Spectralite™ Pro unique from other LED devices?
1. The Spectralite™ is FDA cleared for your safety 2. 3 treatments in one device. Our device uniquely targets acne, aging or both at the same time in just 3 minutes a day 3. It’s custom created by practicing dermatologist, Dr Dennis Gross and is clinically proven to give you acne-clearing and anti-aging results 4. Full-face, hands-free design – unlike our competitors, you don’t need to connect Spectralite™ to a power source, allowing you to freely move around
Is LED therapy painful?
No! This device treats acne and aging painlessly.
FaceWare Pro Troubleshooting instructions
Please give these tips a try and please let us know your results!
1. System not turning on: a. Did you press and hold the on/off button for 2 seconds to power the device on? b. Is the device fully charged? (Power Indicator Light is illuminated and solid when plugged in.)
2. System is not charging: *Please note: FaceWare Pro cannot accept a charge from a USB-C base. A USB-A base must be connected via provided USB-C cord in order to successfully charge the device.* a. Is the provided USB charging cord firmly inserted into device? Does Power Indicator Light blink when plugged in? b . Are you using a USB-A power base? Correct configuration is USB-A base to USB-C cord (included with device, examples pictures provided at the end of this message)
3. System shuts off abruptly, prior to completion of 3-minute treatment: a. System is designed to shut off automatically after approximately 3 minutes, indicating treatment is complete. b. System may shut off after multiple, repeated uses if the device exceeds desired temperature. Allow device to rest for a minimum of 10 minutes and try again.
4. Some lights appear turned off: a. The Infrared (IR) light spectrum is not visible to the human eye. These lights will look as if they are not illuminated, but they are operating properly. If the red and blue visible lights are on, then the device is operating as designed.
5. Alternate charging cord/base/outlet: *Please note: FaceWare Pro cannot accept a charge from a USB-C base. A USB-A base must be connected via provided USB-C cord in order to successfully charge the device.* a. Please try an alternate USB cord to ensure the cord you are currently using is not be damaged/ experiencing an electrical short. b. Please try a different USB -A charging base. The device is designed to be used with a Standard USB-A 5V 1-2A base. We do not recommend using high voltage charging bases when charging the FaceWare Pro. The device will not charge when using any other base besides a USB-A base c. Please try a different outlet. These tests will allow us to determine if the cord, base or outlet is faulty and the cause of the device issues.
Can I use the DRx SpectraLite LED Devices while pregnant or breastfeeding?
While the LED technology utilized in our DRx SpectraLite LED Devices is widely accepted to be very safe technology for most users, we recommend checking with your physician before adding any new products or devices to your routine as we have not studied our products on women who are pregnant or breastfeeding.
