Update app.py

app.py

@@ -45,6 +45,10 @@ selected_indices = st.multiselect('Select two indices', list(INDICES.keys()), ma
 start_date = st.date_input('Start date', datetime.date(2022, 1, 1))
 end_date = st.date_input('End date', datetime.date(2022, 12, 31))
 
+# Convert dates to ee.Date objects
+ee_start_date = ee.Date(start_date.strftime('%Y-%m-%d'))
+ee_end_date = ee.Date(end_date.strftime('%Y-%m-%d'))
+
 if len(selected_indices) == 2 and start_date < end_date:
     # Define the area of interest
     aoi = ee.Geometry.Point([48.7312815, 31.5200749]).buffer(5000)
@@ -52,7 +56,7 @@ if len(selected_indices) == 2 and start_date < end_date:
     # Get Sentinel-2 imagery
     s2 = ee.ImageCollection('COPERNICUS/S2_SR') \
         .filterBounds(aoi) \
-        .filterDate(start_date, end_date) \
+        .filterDate(ee_start_date, ee_end_date) \
         .filter(ee.Filter.lt('CLOUDY_PIXEL_PERCENTAGE', 20)) \
         .sort('CLOUDY_PIXEL_PERCENTAGE')