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The contest, which drew more than 500 submissions, was won by Gary Anderson, whose entry was the image now known as the universal recycling symbol. [ 1 ] [ 3 ] Anderson, then a 23-year-old college student at the University of Southern California , was awarded a $2,500 scholarship. [ 4 ]
The Universal Recycling Symbol, here rendered with a black outline and green fill. Both filled and outline versions of the symbol are in use. Outline version. Gary Dean Anderson (born 1947) is an American graphic designer and architect. He is best known as the designer of the recycling symbol, one of the most readily recognizable logos in the ...
For cost reasons or to avoid a visual clash with other symbols, many manufacturers chose a black-and-white or other colour combination on their packages. The Green Dot logo merely indicates that a company has joined the Green Dot scheme, and not necessarily that the package is fully recyclable. The logo is often confused with the recycling logo.
Recycling codes on products. Recycling codes are used to identify the materials out of which the item is made, to facilitate easier recycling process.The presence on an item of a recycling code, a chasing arrows logo, or a resin code, is not an automatic indicator that a material is recyclable; it is an explanation of what the item is made of.
Black-and-white televisions do not decode this extra colour information in the subcarrier, using only the luminance to provide a monochrome picture. However, because of limited bandwidth in the video channel, the chrominance and luminance signals bleed into each other considerably, causing the colour information to appear as chroma crawl or ...
Later processes moved toward a black-and-white image, although photographers have used toning solutions to convert silver in the image to silver sulphide, imparting a brown or sepia tone. Similarly, selenium toner produces a blue-black or purple image by converting silver into more stable silver selenide. [2]
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Binary images are also called bi-level or two-level. Pixel art made up of two colours is often referred to as 1-bit in reference to the single bit required to store each pixel. [2] The names black-and-white, B&W, monochrome or monochromatic are often used, but can also designate other image types with only one sample per pixel, such as ...