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Pan-sharpen and display a Landsat 8 scene in Google Earth Engine
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| // Band combinations | |
| var natural = ['B4', 'B3', 'B2']; | |
| var swir = ['B6', 'B5', 'B3']; | |
| var urban = ['B7', 'B6', 'B4']; | |
| var veg = ['B5', 'B4', 'B3']; | |
| // Get a Landsat scene | |
| var scene = ee.Image('LANDSAT/LC8_L1T_TOA/LC80450332015263LGN00'); | |
| // Convert the RGB bands to the HSV | |
| var hsv = scene.select(urban).rgbToHsv(); | |
| // Add band 8 and convert back to RGB | |
| var sharpened = ee.Image.cat([ | |
| hsv.select('hue'), hsv.select('saturation'), scene.select('B8') | |
| ]).hsvToRgb(); | |
| // Do a very basic color correction | |
| var imageRGB = sharpened.visualize({min: 0, max:0.18, | |
| gamma:[ | |
| 1.05, // red | |
| 1.08, // green | |
| 0.8] // blue | |
| }); | |
| // Display the image and zoom to it | |
| Map.addLayer(imageRGB); | |
| Map.centerObject(sharpened, 9); |
Sentinel-2 does not have a panchromatic band, so this code will not work. It is specific to Landsat 8.
Hello, I tried to do for Landsat 7 using the same approach but I cant seem to get a collection of images that has a unique ID like yours. How do I pan sharpen a Landsat 7 image?
Thank you in advance
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Hi, good example.
I was trying to do the same process but using sentinel-2. I got a white image instead a color composition, I think the problem is related to the visualization parameters, do you know how can I change it ?