What I mean is: We are giving the min and max value to the visualization parameters but in my case min and max value changes according to geometry so how can i find the min and max value and give these values to the visualization parameters.
My code is:
var median = coll.reduce(ee.Reducer.median()).clip(geometry);
var extrema = median.select('CO_column_number_density_median').reduceRegion(ee.Reducer.minMax(),geometry,250);
var min1 = extrema.getNumber('CO_column_number_density_median_min');
var max1 = extrema.getNumber('CO_column_number_density_median_max');
var visParams={
min:min1,
max:max1,
opacity: 1.0,
palette: ["blue","green","red","cyan","black","yellow","purple"],
bands:['CO_column_number_density_median']
};
Map.addLayer(median,visParams, 'true-color composite');