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Landsat 8 Mosaic (NDVI) Overlapping?

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Hello all,


I have downloaded 3 satellite images (Landsat 8 OLI TC1P), in three different periods (two images are from Mart 4. 2017. and the one is from Mart 20. 2017). I have joined (made mosaic) them in ENVI and have got mosaic with overlapping (Figure 1). Next, I have obtained NDVI in Arc Map and got NDVI with inappropriate values in the overlapping part of the image (Figure 2).

Do you know how to manage this problem?



Thank you in advance!

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Try to use image of the same date, and check the mosaic options in ENVI....perhaps could use ERDAS or another softwares and compared the results... regards. 

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