question: Why do colors pop out so much when it's raining?
comment: Compare it to a tv/monitor. If you turn down the brightness and up the contrast the colors "pop" more or stand out. & #x200B; Light washed out colors as you know light is all colors in one. So less is more here - as your eyes can see the individual wave lengths of light easier.
passages: Section::::Rain or Shine Elasto Painters (2008-present).:2016–2017 season.
   Section::::Rain or Shine Elasto Painters (2008-present).:2015–2016 season.
   Perceptual constancy gives evidence that high-level constructive processes occur during perception. As lighting conditions change, the color of objects, such as bananas or cherries, appear to remain constant. Even when there is not enough light to even stimulate cone cells and give the sensation of color, bananas and cherries are still perceived as yellow and red, respectively.
   BULLET::::- Saturation is the "colorfulness of an area judged in proportion to its brightness", which in effect is the perceived freedom from whitishness of the light coming from the area. An object with a given spectral reflectance exhibits approximately constant saturation for all levels of illumination, unless the brightness is very high.
   A common optical phenomenon involving water droplets is the glory. A glory is an optical phenomenon, appearing much like an iconic Saint's halo about the head of the observer, produced by light backscattered (a combination of diffraction, reflection and refraction) towards its source by a cloud of uniformly sized water droplets. A glory has multiple colored rings, with red colors on the outermost ring and blue/violet colors on the innermost ring.
   Baingio Pinna discovered the watercolor illusion in 1987, reporting it in Italian. Jack Broerse and Robert P. O'Shea independently discovered it in 1995, reporting it in English, although they called it "spread colour", relating it to neon colour spreading. Broerse, Tony Vladusich, and O’Shea, demonstrated the phenomenon in 1999 (Figure 1). Pinna, Gavin Brelstaff, and Lothar Spillmann published the first account of the phenomenon in English in 2001, giving it its current name. Since the discovery many experiments have been performed and analyzed to understand the concept of perception of the illusion compared to various Gestalt factors and the neural processes that create the illusion.
   Neon color spreading is similar to the watercolor illusion, though the two are not to be confused with one another as they are produced in different ways.
  
  Section::::Causes.
   The brightness conditions under which the color spreading figures are viewed change the perceived intensity of the effect. Under bright lighting the effect will be inhibited and under dim lighting the effect will be enhanced.
  
  Another important factor is the luminance of the color causing the effect. Studies have shown that the color should be higher in luminance than the dark lines supporting the effect and it should be lower in luminance than the background.
  
  Section::::Color effects.:Ehrenstein figures.
   Common optical phenomena are often due to the interaction of light from the sun or moon with the atmosphere, clouds, water, dust, and other particulates. One common example is the rainbow, when light from the sun is reflected and refracted by water droplets. Some, such as the green ray, are so rare they are sometimes thought to be mythical. Others, such as Fata Morganas, are commonplace in favored locations.
  
  Other phenomena are simply interesting aspects of optics, or optical effects. For instance, the colors generated by a prism are often shown in classrooms.
  
  Section::::A list of optical phenomena.
   Illusory contours and neon color spreading are often difficult to differentiate. Neon color spreading is characterized by the color being used to create the visual phenomena. This tricks the visual system into thinking that there is color where there is not. Illusory contours cause a similar fooling of the visual system into perceiving contours by causing effects where the contours should be. They are both fooling the visual system in similar ways, but are characterized differently.
  
  Section::::Color effects.
   Long and short wavelength light, where the human eye is less sensitive to spatial detail, seem to enhance the effect. This means that if the illusion is created with red or blue lines, black lines, and a white background, the effect will be more intense. This is particularly notable when the colors are more saturated. In contrast to this, green and yellow tend to suppress the effect of neon color spreading when used in the same way. 
  
  Section::::Color effects.:Luminance.
   This is where the Festival Of Colours tour takes its inspiration from. It first came to Europe on June 29, 2012. The first Festival was held in Berlin on the grounds of the Postbahnhof. 2500 colourful guests had a great time despite the rainy weather. By the end everyone was covered in a layer of paint.
  
  Section::::History.:Growth.
   In the medium of watercolors, wet-on-wet painting requires a certain finesse in embracing unpredictability. Highly translucent and prone to accidents, watercolor paint will bloom in unpredictable ways that, depending on the artist's frame of mind, can be a boon or a burden.
  
  Section::::History.
   Limitations of the watercolor illusion were studied. The color-spreading effect occurs on colored backgrounds in addition to the white or gray. In the case of a colored background, the watercolor illusion color spread does not mix with the background color but does get superimposed onto the colored background. For lighting conditions, the color spreading effect declines as the illumination in the room increases. It is the strongest at medium illumination. Lastly, the watercolor illusion persists even when dotted lines are used for the purple contour and orange fringe instead of continuous lines.
  
  Section::::Watercolor illusion and its phenomenal effects.
   Although the effects of both are similar, they can occur under different conditions. Targets under separate lighting conditions have been shown to exhibit either the color spreading effect or the illusory contour effect. This suggests that they are in fact two different effects.
   Temperature variations in the air can also cause refraction of light. This can be seen as a heat haze when hot and cold air is mixed e.g. over a fire, in engine exhaust, or when opening a window on a cold day. This makes objects viewed through the mixed air appear to shimmer or move around randomly as the hot and cold air moves. This effect is also visible from normal variations in air temperature during a sunny day when using high magnification telephoto lenses and is often limiting the image quality in these cases.
   Section::::Colorimetric purity.
   In addition to the Gestalt principles of perception, water-color illusions contribute to the formation of optical illusions. Water-color illusions consist of object-hole effects and coloration. Object-hole effects occur when boundaries are prominent where there is a figure and background with a hole that is 3D volumetric in appearance. Coloration consists of an assimilation of color radiating from a thin-colored edge lining a darker chromatic contour. The water-color illusion describes how the human mind perceives the wholeness of an object such as top-down processing. Thus, contextual factors play into perceiving the brightness of an object.
  
  Section::::Explanation of cognitive illusions.:Object.
   BULLET::::- Hidden in plain sight - The main purpose for Rain developing a new style was to force viewers to acknowledge that part of the narrative of each painting is 'hidden in plain sight', whereby it is impossible to see the subject of the painting until the viewer takes a few steps back (see images below):
   Section::::Reception.
   I use color in my painting in different ways. Neutral colors and brilliant colors will create different moods. You can take the same motif, the same subject, at different times of the day or different times of the year. Some days it will appear to be very contrasty and brilliant, and the colors will be bright. Another day fog will roll over the scene or it will be early morning or later in the afternoon or evening. Then everything will meld together and you will not have this powerful effect of contrast, and a different, softer mood will prevail.”
   Color can also change depending on viewing angle, using iridescence, for example, in ChromaFlair.
  
  Section::::Art.
   Colour state
  
  Colour states is a system used for quickly showing meteorological conditions.
  
  Meteorological colour states are determined by the relevant worst condition from the visibility and significant cloud height. In the US and parts of Europe the lowest significant cloud layer is five or more oktas; in the United Kingdom, Belgium, France and the Netherlands it is three oktas or more. If visibility or cloud height measurements fall on a boundary (e.g. 5000 m visibility or 1500 ft cloud height) the colour state assumes the higher value in this case WHT.
   The figure-ground effect makes an object appear solid and opaque. The object appears as if it can be either the background or the figure. Through switching the two contour lines, reverses the perception of the stimuli. For example, if the purple contour fringed by orange perceives a figure, when the colored contours are reversed, ground is perceived. In other words, the color spreading effect determines how the figure-ground effect is perceived. In most cases, the color spread tint is perceived as figure and the surrounding area is perceived as ground. As in the coloration effect, the watercolor illusion can show a figure-ground effect on white, black and colored backgrounds.
   After graduating from the University of Wisconsin–Madison in 1971 with a degree in meteorology, Terry Kelly took a job with Madison, Wisconsin, television station WKOW calculating weather predictions. Over the next two years he introduced a number of new techniques to the industry, including using magnets to represent high and low points, color markers on a whiteboard for graphics, and later hand-photographing satellite cloud imagery with a Bolex camera to produce the first cloud-movement animations.
  
raw_presuppositions: Rain makes colors pop out more.
raw_corrections: Turning down the brightness and increasing contrast makes colors pop out more.