I want to change the landcover class of the current image if the landcover class of the previous image and the sequential image are both urban for example, across a time-series image collection of months over couple of years?
Anybody have a sample code of something similar.
What I have so far, but give the error: Layer error: ImageCollection.mosaic: Error in map(ID=null): Image.select: Parameter 'input' is required.
var sortedCollection = classified2.sort('system:time_start', true); // Function to check if an image has both previous and next images var hasPreviousAndNext = function(currentImage) { // Get the time of the current image var currentTime = currentImage.get('system:time_start'); var previousImage = ee.Image(sortedCollection.filter(ee.Filter.lt('system:time_start', currentTime)).first()); var nextImage = ee.Image(sortedCollection.filter(ee.Filter.gt('system:time_start', currentTime)).first()); // Check if both previous and next images are available return (previousImage !== null && nextImage !== null); }; // Function to adjust the current image based on the previous and next images var adjustImage = function(image) { // Check if the current image has both previous and next images if (hasPreviousAndNext(image)) { var currentTime = image.get('system:time_start');// Get the time of the current image var previousImage = ee.Image(sortedCollection.filter(ee.Filter.lt('system:time_start', currentTime)).first()); var nextImage = ee.Image(sortedCollection.filter(ee.Filter.gt('system:time_start', currentTime)).first()); // Create masks for previous and next images var maskPrevious = previousImage.select('classification').eq(6); var maskNext = nextImage.select('classification').eq(6); // Create a mask where both previous and next images have landcover class 6 var combinedMask = maskPrevious.and(maskNext); // Update the current image's landcover band using the combined mask var adjustedLandcover = image.updateMask(combinedMask).addBands(ee.Image(6).rename('classification')); // Return the adjusted image with updated landcover band return image.addBands(adjustedLandcover); } else { // Return the original image if adjustments are not possible return image; } }; // Map the adjustImage function over the collection var correctedCollection = sortedCollection.map(adjustImage); Map.addLayer(correctedCollection, {}, 'FirstCorrectedImage');