Update README.md

README.md

@@ -57,17 +57,28 @@ Raw and processed folder contains identical data.
 
 ## Curvature
 ![image/png](https://cdn-uploads.huggingface.co/production/uploads/651d578a1819d9e5754ffc47/H1r3Gb1Fho2h-Unc7gy6e.png)
-TODO
+The curvature layer was calculated as follows: TODO formula. The disance between the center and the edge points is set to 5 meters to cover wider area.
+The raw folder contains the data with the above mentioned formula applied. The edges with artifacts were cropped from dataset. Values above 0 presents convexe surfaces. Values below 0 presents concave surfaces.
+The data in processed folder were clipped with value +-2 - e.g. the values below -2 were set to -2 and the values above 2 were set to 2. Finally, the data is normalized to values from interval [0, 1] by setting the minimum value to -2 and the maximum to 2.
 
 ## Hillshade
 ![image/png](https://cdn-uploads.huggingface.co/production/uploads/651d578a1819d9e5754ffc47/sNOv4JhLJA0rvGHYYPtVo.png)
-The hillshade layer was created 
+The hillshade layer was created from DEM by using multidirectional hillshade function in QGIS and by applying 45° vertical angle.
+Raw folder contains RGB image with pixel values from 0 to 196.
+The processed folder contains a selected single band from RGB image. CLAHE filter was applied to this band to enhance contrast and the output was normalized to values in interval [0, 1]. 
 
 ## NDVI
 ![image/png](https://cdn-uploads.huggingface.co/production/uploads/651d578a1819d9e5754ffc47/o0AwliWCg5QA6ZlsRGf99.png)
+TODO
 
 ## Roughness
 ![image/png](https://cdn-uploads.huggingface.co/production/uploads/651d578a1819d9e5754ffc47/qcLbwXT_n_uQpywolUX7N.png)
+The roughness layer was created from DEM by using roughness function in QGIS. 
+The raw folder contains single band data with unchanged values.
+The proceesed folder contains the normalized data to interval [0,1] where the minimum was set to 0 and maximum to TODO.
 
 ## Slope
-![image/png](https://cdn-uploads.huggingface.co/production/uploads/651d578a1819d9e5754ffc47/jnLfos8FD2t9-gcvmDtgM.png)
+![image/png](https://cdn-uploads.huggingface.co/production/uploads/651d578a1819d9e5754ffc47/jnLfos8FD2t9-gcvmDtgM.png)
+The slope layer was created from DEM by using slope function in QGIS.
+The raw folder contains single band data with unchanged values (degrees of slope inclination).
+The proceesed folder contains the normalized data to interval [0,1] where the minimum was set to 0 degrees and maximum to 90 degrees.