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Nunâ island Upernavik district 2007-08-09 3
 

 

 

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Dansk: Panorama af fuglefjeldet på øen Nunâ øst for Upernavik, syd for Aappilattoq i Grønland. Fotograferet syd for øen under en sejllads til Upernavik Isfjord. På fjeldet, som er 270 m højt yngler gråmåger (Larus hyperboreus). De hvide områder på klipperne er efterladenskaber. De orange områder er gødningselskende laver (formentlig Caloplaca og Xanthoria), som er tilpasset de levevilkår det høje næringsindhold fra efterladenskaberne tilbyder. Billedet er som udgangspunkt skabt i programmet Hugin ud fra 17 billeder arrangeret i tre rækker. De enkelte billeder er taget med et håndholdt kamera (Canon DIGITAL IXUS 800 IS) i en båd der driver lidt med strømmen (for dybt til at kaste anker). Vignetter er søgt fjernet med et tilpasset polynomium i Hugin. Det genererede billede fra Hugin er efterfølgende blevet rektangulært beskåret i GIMP og farveværdikurven er modificeret let for at modvirke overeksponering af visse hvide klippedele. Herefter er billedet Smart Sharpened med en pixel radius på 3,0 og en amount på 30%. Den inverterede kantdetekterede maske er benyttet til at foretage en selektiv Gaussian blur med pixel radius 5.0 i RGB på himlen for at mindske støjen. I det øverste venstre hjørne er "manglende himmel" søgt indsat.
Svenska: Panorama av ön Nunâ öster om Upernavik och syd om AappilattoqGrönland, fotot togs syd om ön under en seglats till Upernavik Grönland. Fjället är 270 m över havet och bebos av Måsar. De vita områdena på klipporna är spillning, och de gula är lavar (antagligen Caloplaca och Xanthoria). Bilden bearbetades med Hugin och GIMP, för mer teknisk info läs den engelska texten)
English: Panorama of the island Nunâ east of Upernavik and south of Aappilattoq in Greenland. Photographed south of the island during a sail trip to Upernavik Icefjord. The mountain, which extends 270 m above sea level, is inhabited with Glacous Gulls (Larus hyperboreus). The white areas are bird droppings. The yellow areas are lichen (probably Caloplaca and Xanthoria) adapted to the nutritious environment. The image has been generated using Hugin based on 17 individual photos arranged in three rows. The images were taken with a hand-held camera (Canon DIGITAL IXUS 800 IS) in a small boat that was slowly drifting (not optimal, but it was too deep to anchor). Vignetting has been minimized using a best fit polynomial in Hugin. The output image from Hugin has been rectangularly cropped in GIMP. The colour value curve has been modified slightly to compensate for over-exposure in certain white areas. Hereafter the photo has been Smart Sharpened with a pixel radius of 3.0 and an amount of 30%. the inverted edge detected mask was used in RGB to apply a selective gaussian blur with pixel radius 5.0 of the sky in an attempt to remove noise there. "Missing sky" in the upper left corner has been pasted in by simple colour picking and painting (do not know other methods).
Français : Vue panoramique de l'île de Nûna à l'est de Upernavik et au sud d'Aappilattoq, au Groenland. Image prise au sud de l'île durant un voyage en voilier vers le Fjord d'Upernavik. La montagne, culminant à 270m, est peuplée de goélands. Les zones blanches sont des fientes d'oiseaux, les taches jaunes, du lichen. Image générée en utilisant Hugin, à partir de 17 photos en 3 rangs. Les photos ont été prises d'une barque à la dérive (l'eau était trop profonde pour mouiller l'ancre). Divers traitements (recadrage, courbes, nettetée, supression du vignettage du ciel) ont été appliqués en utilisant les logiciels Hugin et GIMP.
Date
Source Own work in Hugin and GIMP based on own photographs.
Author Kim Hansen
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Camera location

72° 45′ 55.90″ N, 55° 29′ 53.70″ W   

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English: Panorama of the island Nunâ in Greenland.
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Referenceedit

Det Grønne Grønland, Tyge W. Böcher, Ed. by Bent Fredskild and Jens J. Böcher, Rhodos (2000), ISBN 87 7245 845 3, p. 76-77.


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