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In mathematical morphology and digital image processing, a top-hat transform is an operation that extracts small elements and details from given images.There exist two types of top-hat transform: the white top-hat transform is defined as the difference between the input image and its opening by some structuring element, while the black top-hat transform is defined dually as the difference ...
A decal being attached to a piece of machinery. A decal (/ ˈ d iː k æ l /, US also / d ɪ ˈ k æ l /, CAN / ˈ d ɛ k əl /) [1] or transfer is a plastic, cloth, paper, or ceramic substrate that has printed on it a pattern or image that can be moved to another surface upon contact, usually with the aid of heat or water.
John Hetherington is an apocryphal English haberdasher.A frequently republished story from the late nineteenth century claims that in 1797 he invented the top hat and caused a riot by wearing it in public in London.
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Chinese paper gambeson depicted in the Wubei Yaolue military manual (1632). Paper clothing has a long history in China, predating the use of paper for writing purposes. [1] [2] The creation of the earliest form of modern paper is usually credited to Cai Lun (d.121 CE), a court official who lived during the Han dynasty. [2]
A woman wearing a paper party hat. A party hat is any of a number of celebratory hats, most typically in the form of a conical hat made with a piece of thin paperboard, usually with designs printed on the outside and a long string of elastic acting like a chinstrap, going from one side of the cone's bottom to another to secure the cone to the person's head.
A Mexican hat with a conical crown and a very wide, saucer-shaped brim, highly embroidered and made of plush felt Tam o'Shanter: A traditional flat, round Scottish cap usually worn by men (in the British military sometimes abbreviated ToS) Top hat: Also known as a beaver hat, a magician's hat, or, in the case of the tallest examples, a ...
The Carpenter in Lewis Carroll's Through the Looking-Glass wears a printer's hat. A printer's hat (also called a pressman's or carpenter's hat) is a traditional, box-shaped, folded paper hat, formerly worn by craft tradesmen such as carpenters, masons, painters and printers. For printers, the cap served to keep ink from matting their hair.