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README.md

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@@ -7,8 +7,9 @@ _This plugin has four algorithms:_
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### (1) Basic pixel alignment
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<div align="center">
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<img src="docs/img/Basic%20pixel%20alignment.webp" height="270px" style="margin: auto;display: block;">
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<img src="docs/img/Basic%20pixel%20alignment.webp" height="380px" style="margin: auto;display: block;">
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</div>
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This Qgis processing generates a new raster file base on the target image with all properties from the reference image. This process don't check the content of the pixel, this process adjusts the target image to the closest pixel alignment based on the reference image. The basic pixel alignment process include:
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* Reprojection (only if needed)
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### (2) Panning pixel adjustment
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<div align="center">
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<img src="docs/img/Panning%20pixel%20adjustment.webp" height="250px" style="margin: auto;display: block;">
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<img src="docs/img/Panning%20pixel%20adjustment.webp" height="300px" style="margin: auto;display: block;">
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</div>
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The Pixel Panning Adjustment algorithm provides a simple way to manually shift pixels in the X (longitude) and Y
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(latitude) directions in the whole image given by the user. This algorithm is not automatic, the user must select the pixel shift in X and Y.
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### (3) Global
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<div align="center">
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<img src="docs/img/Automated%20global%20co-registration.webp" height="380px" style="margin: auto;display: block;">
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<img src="docs/img/Automated%20global%20co-registration.webp" height="480px" style="margin: auto;display: block;">
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</div>
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This global algorithm is useful when the target image requires just one shifts in distance and direction in the whole image.
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### (4) Local
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<div align="center">
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<img src="docs/img/Automated%20local%20co-registration.webp" height="380px" style="margin: auto;display: block;">
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<img src="docs/img/Automated%20local%20co-registration.webp" height="480px" style="margin: auto;display: block;">
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</div>
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This local algorithm is useful when the target image requires different pixel shifts in distances and directions. The precision of this is based on mainly in two input parameters: tie point grid resolution and matching window size. This is significantly more comprehensive and slower than global algorithm.
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*[1] These algorithms use AROSICS software developed by Daniel Scheffler, for more info <a href="https://danschef.git-pages.gfz-potsdam.de/arosics/doc/">url</a> and <a href="https://doi.org/10.3390/rs9070676">paper</a>.

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