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  1. Top-hat transform - Wikipedia

    en.wikipedia.org/wiki/Top-hat_transform

    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 ...

  2. Shadow person - Wikipedia

    en.wikipedia.org/wiki/Shadow_person

    One example of a particular shadow person is the "Hat Man", who shares the characteristics of general shadow people but is named for a fedora or other brimmed hat on his head. Descriptions of the Hat Man date back to as early as the late 2000s. [ 12 ]

  3. Baron Samedi - Wikipedia

    en.wikipedia.org/wiki/Baron_Samedi

    Baron Samedi is usually depicted with a top hat, black tail coat, dark glasses, and cotton plugs in the nostrils, as if to resemble a corpse dressed and prepared for burial in the Haitian style. He is frequently depicted as a skeleton (but sometimes as a black man that merely has his face painted as a skull), and speaks in a nasal voice.

  4. Top hat - Wikipedia

    en.wikipedia.org/wiki/Top_hat

    Top hat. Austin Lane Crothers, 46th Governor of Maryland (1908–1912), wearing a top hat. A top hat (also called a high hat, or, informally, a topper) is a tall, flat-crowned hat traditionally associated with formal wear in Western dress codes, meaning white tie, morning dress, or frock coat. Traditionally made of black silk or sometimes grey ...

  5. Square academic cap - Wikipedia

    en.wikipedia.org/wiki/Square_academic_cap

    The square academic cap, graduate cap, cap, mortarboard[1] (because of its similarity in appearance to the mortarboard used by brickmasons to hold mortar [2]) or Oxford cap[3] is an item of academic dress consisting of a horizontal square board fixed upon a skull-cap, with a tassel attached to the centre. In the UK and the US, it is commonly ...

  6. Knit cap - Wikipedia

    en.wikipedia.org/wiki/Knit_cap

    Knit cap. A knit cap is a piece of knitted headwear designed to provide warmth in cold weather. It usually has a simple tapered shape, although more elaborate variants exist. Historically made of wool, [1] it is now often made of synthetic fibers.

  7. Six Thinking Hats - Wikipedia

    en.wikipedia.org/wiki/Six_Thinking_Hats

    0-316-17791-1. Preceded by. Masterthinker's Handbook (1985) Followed by. I Am Right, You Are Wrong (1991) Six Thinking Hats was written by Dr. Edward de Bono. "Six Thinking Hats" and the associated idea parallel thinking provide a means for groups to plan thinking processes in a detailed and cohesive way, and in doing so to think together more ...

  8. The Stig - Wikipedia

    en.wikipedia.org/wiki/The_Stig

    The scene which saw Black Stig "killed off," nicknamed "Top Gun vs Top Gear," was an attempt to race to 100 mph (160 km/h) and then come to a halt on the 200-metre (660 ft) long flight deck of HMS Invincible, a Royal Navy aircraft carrier on which British Aerospace Sea Harrier jump jets reach 100 mph (160 km/h) before take-off.