I have a large amount of RapidEye images (+300 Gb) that I want to use as a basemap for a online application. So far I've managed to serve them as an ImagePyramid in geoserver following the steps shown in a presentation called "Geoserver on steroids". The problem is that I haven't been able to do a proper color balance so when looking at the entire dataset, the mosaic looks very poor but as I zoom in, it gets better (pictures bellow).
My process is:
- Convert all images to 8bits, epsg 4326, cubic interpolation using gdal
- Generate a gdal virtual raster with all the images (gdalbuildvrt)
- Generate the image pyramid (gdal_retile with compression and geotiff tilling) and publish on geoserver (using histogram stretch in the layer style)
Any tips on how to improve the process and get better color balance?