After I calculate NDVI index by MODIS PRODUCTS, I want to classify NDVI in my case study. I want to calculate Classification accuracy for NDVI classification like producer accuracy, user accuracy, overall accuracy, and kappa coefficient but I don't have field data.what should I do to calculate Classification accuracy for NDVI classification?
Hello, I think that you need field data to do this types of calculus. Because you need some real data to do the comparison.
In the other hand, you can do the comparison with another dataset of NDVI produced by another satellite images. Otherwise, if you want to calculus; producer accuracy, user accuracy, overall accuracy, and kappa coefficient, is because you have different classes about the study area, and you need to have some field data about each of these classes.
Dear Negar,
You may find some on GEE, also you can use some algorithm for doing so.
The following articles maybe helpful to you:
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Cheers
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