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Using ' Raster -> Extract -> Raster Cut ' in QGIS and 'Nodata = 0', I cut the black part of the Landsat8 image as shown below.
However, when I saved it as "tif file", it seems that the black area is still there.
So I tried to put the tif file in Google Earth, and it appeared as shown below.
I want to save and show only the image that I cut. Please give me some advice.
As Vince's comment suggests, the best way is to make the Nodata values transparent. If you can't do that, you may try the following:
You can cut out a part of the image from the full scene (in this case you will lose some of the image pixels that are not equal to Nodata).
You can pick up such a projection so that the image is no longer rotated, then save the image (in practice, picking up such a projection is difficult or almost impossible).
In any raster editor rotate the image and crop the black borders (the geographical reference will be lost).
