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The Direct Decorrelation Stretch (DDS) is a simple type of saturation stretch. The stretch is applied to a colour composite image (Data Type of RGB) and is used to improve the saturation, or colourfulness, of the image. The DDS operates by reducing the achromatic (grey) component of a pixel's colour by a scale factor (k), such that the red (r), green (g), and blue Decorrelation methods seek to maximise the randomness of the phse between the two signals. This can be acheived using two mechanisms, phase based and amplitude based.

Decorrelation stretch

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Author information: (1)Environmental Conservation & Management, Faculty of Pure and Applied Sciences, Open University of Cyprus, 38, Tripoleos Str., 104-42, Athens, Greece. gmiliar@yahoo.com. DStretch is back on Android with a new name: aDStretch. Otherwise it is the same app. Google disliked the use of the name android in the app's name. Technology is revealing area's hidden rock art.

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Otherwise it is the same app. Google disliked the use of the name android in the app's name. Technology is revealing area's hidden rock art. This article by Elizabeth Marie Himchak appeared January 10, 2019 in the San Diego Union-Tribune, Pomorado News.

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Performs a decorrelation stretch (transformation) on 2 to 256 channels of image data. This type of stretch is especially effective on images in which channels are highly correlated (that is, the spectral bands are very similar). Decorrelation is based upon Principal Component Analysis … 2021-01-01 Decorrelation Stretch 15 Brightness Temperature 17 Surface Reflectance 18 Surface Radiance VNIR, SWIR 20 Surface Radiance TIR 22 Surface Emissivity 24 Surface Kinetic Temperature 26 DEM 27 SECTION 4: Product Definitions--Common Information 29 formatted_product_summary 30 productmetadata.0 33 coremetadata.0 35 QA_alert_table 37 level_1_carryover 38 Decorrelation stretch, an image enhancement technique first used in remote sensing, can be usefully applied to rock art. In pictograph images from Baja California, California, and Nevada I demonstrate its ability to bring out elements nearly invisible to the eye and to improve visualization of difficult sites. A decorrelation stretch plugin to the imaging program ImageJ is available from the 2016-03-07 direct_decorrelation_stretch: Direct decorrelation stretch In whitebox: 'WhiteboxTools' R Frontend.

Decorrelation stretch

By using eigen vectors and a covariance matrix, the data is "rotated" in to a new space where the values are then maximized and returned to the original space. A useful property of the dcs stretch is that it maximizes differences between bands.
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Then a simple color transformation and  TRANS RMATIONS AND DECORRELATION STRETCH METHODS. Luciano V. Dutra * color transformation and the decorrelation stretching technique. 30 May 2014 Left: plain view; right: after decorrelation stretch analysis digital enhancement. Noel Hidalgo Tan—Antiquity Publications.

PURPOSE: DESTRETCH produces decorrelation stretched images, and variants of the decorrelation stretch algorithm. This is similar to the ASTER Standard Data Product algorithm, with a few additional options (DSCALE, more than 3 inputs/outputs, and multiple statistics gathering regions). 21 Feb 2011 Decorrelation Stretch[ing] ("DCS") is an image-processing algorithm which originated in the world of satellite and aerial mapping.
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The number of color bands, NBANDS, in the image is usually three. But you can apply decorrelation stretching regardless of the number of color bands. Spatial decorrelation stretch of annual (2003-2014) Daymet precipitation summaries on a 1-km grid for California, Nevada, Arizona, and Utah.


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30 May 2014 Left: plain view; right: after decorrelation stretch analysis digital enhancement. Noel Hidalgo Tan—Antiquity Publications. 1 of 7.

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Gaugamela. Iraq  29. Figure 5.

Resolution Merge Wizard–Lets you merge or “fuse” a lower  Firstly using histogram equalization followed by contrast stretch using blockproc function and later Decorrelation stretch. The results are compared using the  จากเทคโนโลยีภาพถ่ายดาวเทียม Decorrelation Stretch ขององค์การนาซ่า NASA สู่แอปแอนดรอยด์ Rock Art enhancer ของ Anthony Dunk นัก Software Engineer และ  Mechanical stretch induces enhanced expression of angiotensin II receptor decorrelation from mechanical compression of tissues by temporal stretching:  av W Nordström · 2021 — Decorrelation stretch (Dstretch). DStretch, eller Decorrelation strecht, är en digital fotoredigerings-teknik som används för att förstärka och förtydliga kontraster  av M Blomqvist · 2010 — How much the universe has been stretched between a time t and the current but can be decorrelated by rotating them into a basis where they are diagonal.