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View Code? Open in Web Editor NEWMonitor Vegetation Health by Viewing & Comparing NDVI Values & Satellite Images On The Fly!
Home Page: https://ndvi-viewer.streamlit.app/
Monitor Vegetation Health by Viewing & Comparing NDVI Values & Satellite Images On The Fly!
Home Page: https://ndvi-viewer.streamlit.app/
The app is unexpectedly doing good but the more users are trying the app the more it keeps crashing due to Streamlit Cloud free tier limited allocated resources. I cant afford a paid plan on any service so I think I have to focus on app optimization (it needs this regardless of the app crashing or not).
If anyone has any idea on how to optimize a Google Earth Engine app, please check the issue and lend a helping hand.
User input file upload enhancement
A feature to either save the resulting raster layers as GeoTIFF files or an option to take a screenshot of the Folium map canvas and save it to local machine would be a great feature.
The current map is set to arbitrary default coordinates which makes it less user-friendly when uploading aoi and having search the map for it. The ideal way is to implement dynamic map centering mechanic that focuses on the uploaded GeoJSON aoi.
minimizing input data to avoid cramming UI with x4 date input widgets to form time frames for each satellite image collection.
Add legend section explaining the map's elements, includes:
Find a way to create comparative maps where each displays the NDVI from a date period specified by user input. Explore;
geemap.ee_initialize()
to initialize/authenticate the gee app in the cloudError running app. If this keeps happening, please
The upload_files_proc function is not reading all the geometries within a single GeoJSON file, instead it only parse the first geometry and ignores the rest.
When deploying the Streamlit app that integrates with Google Earth Engine (GEE) on Streamlit Cloud, there is an authentication issue. The app gets stuck in an indefinite authentication loop when using the geemap.ee_initialize()
method. The issue is observed when attempting to authenticate GEE using a normal account with an Earth Engine Token stored in Streamlit Secrets.
earthengine authenticate
C:\Users\USER\.config\earthengine\credentials
" to Streamlit secrets.geemap.ee_initialize()
method to authenticate and initialize GEE in streamlit.The Streamlit app should successfully authenticate and initialize GEE using the provided GEE Token and run without getting stuck in the authentication process.
Allow user to input a value for cloudy pixel percentage which helps have clearer images
The placeholder of the st.date_input
streamlit widget was set to the current day, which turns out to be inconvenient as satellite images aren't always available on a daily basis in the dataset or not captured yet, so when the app starts and tries to retrieve a dataset from the current day that is nonexistent it sends an error and dont display the page:
ee.ee_exception.EEException: Image.normalizedDifference: No band named 'B8'. Available band names: [].
malloc(): unsorted double linked list corrupted
Note: this issue is not the sole reason the app crashes, the heavy load of users also causes the app to crash when exceeding free tier allocated resources.
Needs a section where the user can generate a profile of the data with all the stats related to the results, e.g;
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