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  2. Edge detection - Wikipedia

    en.wikipedia.org/wiki/Edge_detection

    e. Edge detection includes a variety of mathematical methods that aim at identifying edges, defined as curves in a digital image at which the image brightness changes sharply or, more formally, has discontinuities. The same problem of finding discontinuities in one-dimensional signals is known as step detection and the problem of finding signal ...

  3. Can't Help Myself (Sun Yuan and Peng Yu) - Wikipedia

    en.wikipedia.org/wiki/Can't_Help_Myself_(Sun_Yuan...

    Can't Help Myself was a kinetic sculpture created by Sun Yuan and Peng Yu in 2016. [1] The sculpture consisted of a robotic arm that could move to sweep up red, cellulose ether fluid leaking from its inner core, and make dance-like movements. [2] It was commissioned by the Guggenheim museum with the intent of cultivating dialogue about the ...

  4. Comparison gallery of image scaling algorithms - Wikipedia

    en.wikipedia.org/wiki/Comparison_gallery_of...

    For magnifying computer graphics with low resolution and few colors (usually from 2 to 256 colors), better results will be achieved by pixel art scaling algorithms such as hqx or xbr. These produce sharp edges and maintain high level of detail. Unfortunately due to the standardized size of 218x80 pixels, the "Wiki" image cannot use HQ4x or ...

  5. Canny edge detector - Wikipedia

    en.wikipedia.org/wiki/Canny_edge_detector

    An edge in an image may point in a variety of directions, so the Canny algorithm uses four filters to detect horizontal, vertical and diagonal edges in the blurred image. The edge detection operator (such as Roberts , Prewitt , or Sobel ) returns a value for the first derivative in the horizontal direction (G x ) and the vertical direction (G y ).

  6. Picture frame - Wikipedia

    en.wikipedia.org/wiki/Picture_frame

    Construction. A picture frame is a container that borders the perimeter of a picture, and is used for the protection, display, and visual appreciation of objects and imagery such as photographs, canvas paintings, drawings and prints, posters, mirrors, shadow box memorabilia, and textiles. Traditionally picture frames have been made of wood, and ...

  7. Meander (art) - Wikipedia

    en.wikipedia.org/wiki/Meander_(art)

    Meander (art) A meander or meandros[1] (Greek: Μαίανδρος) is a decorative border constructed from a continuous line, shaped into a repeated motif. Among some Italians, these patterns are known as "Greek Lines". Such a design may also be called the Greek fret or Greek key design, although these terms are modern designations even though ...

  8. Sfumato - Wikipedia

    en.wikipedia.org/wiki/Sfumato

    Sfumato (English: / sfuːˈmɑːtoʊ / sfoo-MAH-toh, Italian: [sfuˈmaːto]; lit. 'smoked off', i.e. 'blurred') is a painting technique for softening the transition between colours, mimicking an area beyond what the human eye is focusing on, or the out-of-focus plane. It is one of the canonical painting modes of the Renaissance.

  9. Border art - Wikipedia

    en.wikipedia.org/wiki/Border_art

    Border Art is a contemporary art practice rooted in the socio-political experience(s), such as of those on the U.S.-Mexico borderlands, or frontera.Since its conception in the mid-80's, this artistic practice has assisted in the development of questions surrounding homeland, borders, surveillance, identity, race, ethnicity, and national origin(s).

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