My source for raw Landsat stuff is here:
http://glcfapp.umiacs.umd.edu:8080/esdi/index.jspYou can search by a variety of different options, and everything comes in raw grayscale tiff format so you can combine whichever bands of data you want to get a variety of different remote sensing information. Here are the steps I use for processing the bands into a 15m resolution Panchromatic False Colour image:
For a natural colour image:
1. Open Bands 1, 2 and 3 in photoshop
2. Adjust the levels of each image – move the left slider to the lowest visible black point, move the right slider to the highest visible white
3. Under Channels choose – merge channels, choose RGB.
4. For Red use Band 3, for Green use Band 2, for Blue use Band 1 - when done this is your 30m sample, for 15m keep going down the list
5. Once it is combined, change colour to LAB
6. Double the image size
7. Under channels choose – split channels
8. Close the Brightness channel, leave channel A and channel B open
9. Open Band 8, adjust levels as before
10. Under channels choose – Merge channels, choose LAB
11. Use Band 8 for Lightness, Channel A for A, Channel B for B
12. Adjust colours, contrast, levels, sharpness etc.
13. Save and recalibrate if desired
For other varieties, just change the band sequence to highlight different features.
Here are a few varieties, but there are many more:
http://www.archer-designs.com/satellite-data/satellite-image-gallery.phpYou can also put the landsat bands together in Global Mapper, but it is pretty difficult to get good results.
Here is the 15m tile I converted while writing these out to make sure I got the steps right (It is around 170mb so it may take awhile to download, but I think it is far better than the google earth landsat images)
http://www.archer-designs.com/temp/p044r02520010914z11.rarFull resolution crop:
Once you have everything converted to a contrasting colour palette, you should be able to do a colour selection or replace colour step to change the rocks to whichever colour you want.
