Google Earth Engine Tutorial: Landsat 7 Gaps-Filling

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  • Опубликовано: 26 авг 2024
  • Google Earth Engine tutorial for Landsat 7 Gaps-Filling Using Focal Mean Function
    GEE Code: code.earthengi...
    More Question:
    lopet2407@gmail.com
    Script Builder/GEE Assist? Contact:
    gee.assist08@gmail.com

Комментарии • 28

  • @user-mq5pi7fc3g
    @user-mq5pi7fc3g 29 дней назад

    perfect 👍

  • @artspcx
    @artspcx 3 года назад +1

    permisi bang mau nanya, saya udah coba script yang tertera di video tersebut. terus saya praktekkan ke script landsat 7 SR dengan script supervised classidication (svm) itu kok gak bekerja ya untuk mengisi gapfillnya?

  • @space-time-somdeep
    @space-time-somdeep 4 месяца назад

    Didn't clear.. how much we have to zoom in?
    And what if we increase the Karnel Size, from 1 to let's suppose 5?

  • @kholismunawar2918
    @kholismunawar2918 2 года назад

    Thanks, its useful. but how to do the cloud masking function and followed up by this filling gap? I did try but the cloud still exist

  • @stephensodoke8980
    @stephensodoke8980 Год назад

    the line strip of lines are still on the image, any advise on what to do

  • @tatianetavares2318
    @tatianetavares2318 3 года назад

    Thanks a lot! It was really useful!

  • @user-pm7mr1yt8r
    @user-pm7mr1yt8r Год назад

    Thank you

  • @tilayeworku5608
    @tilayeworku5608 3 года назад

    Thank you so much

  • @poulaminath6523
    @poulaminath6523 2 года назад

    how to add "L7_style" please give the steps its very vital for me

  • @nilamila1
    @nilamila1 4 года назад +1

    The gap filling is not working in my case! What could be the problem? it's saying "L7coll.focal_mean is not a function"

    • @INSGIS
      @INSGIS  4 года назад

      hmmm you should share your script, so i could look further

    • @nilamila1
      @nilamila1 4 года назад

      @@INSGIS
      var L7coll = ee.ImageCollection('LANDSAT/LE07/C01/T1_SR')
      .filter(ee.Filter.lt('CLOUD_COVER',10))
      .filterBounds(chalanbeel)
      var img_fill = L7coll.focal_mean(1, 'square', 'pixels', 8)
      var final_image = img_fill.blend(L7coll)
      Map.addLayer(img_fill.clip(chalanbeel), {bands: ['B5', 'B4', 'B3'], min: 0, max: 3000}, 'Image Fill')
      Map.addLayer(l7.clip(chalanbeel), {bands: ['B5', 'B4', 'B3'], min: 0, max: 3000}, 'L7 Original')
      Map.addLayer(final_image.clip(chalanbeel), {bands: ['B5', 'B4', 'B3'], min: 0, max: 3000} 'Final Image')
      **chalanbeel is my study area**

    • @INSGIS
      @INSGIS  4 года назад +3

      @@nilamila1 focal_mean need an image as a input, not image collection. So, you have to convert it before. If you see in my vid, I used first() function as a last filter to pick first image in collection and convert it to image type.

    • @joaquinurruti2628
      @joaquinurruti2628 2 года назад +1

      @@INSGIS @Md Tawhid Hossain
      You can apply a function like this:
      function corrScan (img){
      var img_fill = img.focal_mean(1, 'square', 'pixels', 8);
      var img_corr = img_fill.blend(img);
      return img_corr;
      }
      and then apply the function like this:
      imgCol.map(corrScan );
      Hope this is usefull for you!

    • @joaquinurruti2628
      @joaquinurruti2628 2 года назад +1

      @@nilamila1
      You can apply a function like this:
      function corrScan (img){
      var img_fill = img.focal_mean(1, 'square', 'pixels', 8);
      var img_corr = img_fill.blend(img);
      return img_corr;
      }
      and then apply the function like this:
      imgCol.map(corrScan );
      Hope this is usefull for you!

  • @arthurleao7542
    @arthurleao7542 2 года назад

    how did you add "l7_style"?

  • @raniaamandafauzi7999
    @raniaamandafauzi7999 7 месяцев назад

    Cara memunculkan l7?

  • @ernestg7466
    @ernestg7466 2 года назад

    Very useful

    • @abilitymatutu883
      @abilitymatutu883 8 месяцев назад

      How to add l7 style

    • @ernestg7466
      @ernestg7466 8 месяцев назад

      @@abilitymatutu883 The style is defined beforehand in order to display the images and you can customize it according to your needs. If you notice it appears in the import bar and is added to that section automatically. Here you have an example, you declare it as a variable.
      var Visual_Landsat2009 = {"opacity":1,"bands":["B4","B5","B3"],"min":0.021442476933903,"max":0.27750826620608177,"gamma":0.853};

    • @ernestg7466
      @ernestg7466 8 месяцев назад

      but you can call it L7_style if you wish.

    • @abilitymatutu883
      @abilitymatutu883 8 месяцев назад

      I am trying to say how to add bands min and max value

    • @ernestg7466
      @ernestg7466 8 месяцев назад

      ​@@abilitymatutu883 Precisely, look at the example of the Visual_Landsat2009 variable in "min" and "max" values allow you to add those desired values. If you notice the variable has several parameters that allow you to manipulate its characteristics, opacity, bands and their values and gamma.

  • @user-qw9vu6ny5m
    @user-qw9vu6ny5m 11 месяцев назад

    This work not work