Satellite image spatial references?

Question

Gamliel Roos 2019-9-2

0
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https://ww2.mathworks.cn/matlabcentral/answers/478596-satellite-image-spatial-references

评论： Gamliel Roos 2019-9-18

Hi i have two question: - When i use geotiffread for satellite image georeference's how can i have access to it's spatial references to be able to compare them with an other satellite image of the same place but with a different field ?

- For sentinel 2 image i have or a XML file or all the seperate bands in jp2 in this case how can i have acess to the spatial references ? Thanks very much for your answer.

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Answer 1

Subhadeep Koley 2019-9-6

1
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https://ww2.mathworks.cn/matlabcentral/answers/478596-satellite-image-spatial-references#answer_390665

在 MATLAB Online 中打开

According to the documentation geotiffread returns a spatial referencing object of the file.

[boston, R] = geotiffread('boston.tif');

Here, R contains the spatial reference object.

R = 
  MapCellsReference with properties:
            XWorldLimits: [764317.995579396 779019.409746063]
            YWorldLimits: [2951122.28480912 2960574.36564245]
              RasterSize: [2881 4481]
    RasterInterpretation: 'cells'
        ColumnsStartFrom: 'north'
           RowsStartFrom: 'west'
      CellExtentInWorldX: 3.28083333333333
      CellExtentInWorldY: 3.28083333333333
    RasterExtentInWorldX: 14701.4141666667
    RasterExtentInWorldY: 9452.08083333332
        XIntrinsicLimits: [0.5 4481.5]
        YIntrinsicLimits: [0.5 2881.5]
      TransformationType: 'rectilinear'
    CoordinateSystemType: 'planar'