Question: landsat-c2-l2 scaling & NDVI

Hi,

I was going through the landsat-c2-example.ipynb notebook and noticed that the NDVI is calculated directly from the red and nir08 bands as loaded via odc.stac - without applying the documented scale and offset.
My understanding of odc.stac is that it does not apply scaling by default, so the computation as in the example notebook seems to be using the raw integer DNs. Doesn't this bias the NDVI? Is there a specific reason why the example computes NDVI on the unscaled data - or have I misunderstood anything?

Thank you for providing and maintaining these examples, they've been super helpful for getting familiar with MPC!

Best
Maike

datasets/landsat-c2/landsat-c2-example.ipynb を開き、NDVI の計算前に odc.stac が red バンドと nir08 バンドをどのように読み込むか確認してください。その計算を文書化されているスケールとオフセットと比較し、現在の動作の理由を明らかにするか、ノートブックの NDVI 計算が正しくなるように例を更新してください。