Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Acutance> ?p ?o }
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- Acutance abstract "In photography, the term "acutance" describes a subjective perception of sharpness that is related to the edge contrast of an image. Acutance is related to the amplitude of the derivative of brightness with respect to space. Due to the nature of the human visual system, an image with higher acutance appears sharper even though an increase in acutance does not increase real resolution.Historically, acutance was enhanced chemically during development of a negative (High Acutance Developers), or by optical means in printing (Unsharp Masking). In digital photography, onboard camera software and image postprocessing tools such as Photoshop or GIMP offer various sharpening facilities, the most widely used of which is known as "unsharp mask" because the algorithm is derived from the eponymous analog processing method. In the example image, two light gray lines were drawn on a gray background. As the transition is instantaneous, the line is as sharp as can be represented at this resolution. Acutance in the left line was artificially increased by adding a one-pixel-wide darker border on the outside of the line and a one-pixel-wide brighter border on the inside of the line. The actual sharpness of the image has been decreased because the transition takes place across four pixels, but the apparent sharpness is increased because of the greater acutance.Artificially increased acutance has drawbacks. In this somewhat overdone example most viewers will also be able to see the borders separately from the line, which create two halos around the line, one dark and one shimmering bright.".
- Acutance thumbnail Accutance.svg?width=300.
- Acutance wikiPageExternalLink sharpness.htm.
- Acutance wikiPageExternalLink www.luminous-landscape.com.
- Acutance wikiPageExternalLink sharp.shtml.
- Acutance wikiPageExternalLink sharpness.shtml.
- Acutance wikiPageID "3226361".
- Acutance wikiPageLength "5559".
- Acutance wikiPageOutDegree "33".
- Acutance wikiPageRevisionID "681267291".
- Acutance wikiPageWikiLink Aperture.
- Acutance wikiPageWikiLink Bicubic_interpolation.
- Acutance wikiPageWikiLink Bulb_(photography).
- Acutance wikiPageWikiLink Cable_release.
- Acutance wikiPageWikiLink Camera_shake.
- Acutance wikiPageWikiLink Category:Image_processing.
- Acutance wikiPageWikiLink Category:Science_of_photography.
- Acutance wikiPageWikiLink Clipping_(audio).
- Acutance wikiPageWikiLink Contrast_(vision).
- Acutance wikiPageWikiLink Cornsweet_illusion.
- Acutance wikiPageWikiLink Critical_focus.
- Acutance wikiPageWikiLink Derivative.
- Acutance wikiPageWikiLink Edge_enhancement.
- Acutance wikiPageWikiLink Film_grain.
- Acutance wikiPageWikiLink Image_noise.
- Acutance wikiPageWikiLink Image_processing.
- Acutance wikiPageWikiLink Image_resolution.
- Acutance wikiPageWikiLink Image_stabilization.
- Acutance wikiPageWikiLink Low-pass_filter.
- Acutance wikiPageWikiLink Mach_bands.
- Acutance wikiPageWikiLink Mirror_lock-up.
- Acutance wikiPageWikiLink Optical_resolution.
- Acutance wikiPageWikiLink Optimal_aperture.
- Acutance wikiPageWikiLink Overshoot_(signal).
- Acutance wikiPageWikiLink Photography.
- Acutance wikiPageWikiLink Ringing_artifact.
- Acutance wikiPageWikiLink Ringing_artifacts.
- Acutance wikiPageWikiLink Signal-to-noise_ratio.
- Acutance wikiPageWikiLink Tripod_(photography).
- Acutance wikiPageWikiLink Unsharp_masking.
- Acutance wikiPageWikiLink File:Accutance.svg.
- Acutance wikiPageWikiLink File:Accutance_example.png.
- Acutance wikiPageWikiLink File:Gibbs_phenomenon_10.png.
- Acutance wikiPageWikiLink File:Usm-unsharp-mask.png.
- Acutance wikiPageWikiLinkText "Acutance".
- Acutance wikiPageWikiLinkText "Acutance#Sharpness".
- Acutance wikiPageWikiLinkText "Acutance#critical sharpness".
- Acutance wikiPageWikiLinkText "Sharpness (visual)".
- Acutance wikiPageWikiLinkText "Sharpness".
- Acutance wikiPageWikiLinkText "acutance".
- Acutance wikiPageWikiLinkText "perceived sharpness".
- Acutance wikiPageWikiLinkText "sharpness".
- Acutance hasPhotoCollection Acutance.
- Acutance wikiPageUsesTemplate Template:Clear.
- Acutance wikiPageUsesTemplate Template:Visible_anchor.
- Acutance subject Category:Image_processing.
- Acutance subject Category:Science_of_photography.
- Acutance type Algorithm.
- Acutance type Field.
- Acutance comment "In photography, the term "acutance" describes a subjective perception of sharpness that is related to the edge contrast of an image. Acutance is related to the amplitude of the derivative of brightness with respect to space.".
- Acutance label "Acutance".
- Acutance sameAs Ostrost.
- Acutance sameAs Akutanz.
- Acutance sameAs Acutancia.
- Acutance sameAs Piqué.
- Acutance sameAs m.08_ny_.
- Acutance sameAs Q424183.
- Acutance sameAs Q424183.
- Acutance sameAs 锐度.
- Acutance wasDerivedFrom Acutance?oldid=681267291.
- Acutance depiction Accutance.svg.
- Acutance isPrimaryTopicOf Acutance.