Data Products and Browse Images
This massive database updates our knowledge of the Nation’s land cover and documents precisely where land cover change has occurred between 2001 and 2006.
Apparently, the color stretch used by the processing system to create browse images for Landsat TM images does not perform well in areas of low contrast.
Pixelation is an artifact of the browse generation process and is common for scenes that are located over flat, low-contrast areas, such as water, sand and snow. The actual data will not appear this way.
A custom color stretch is performed on the images, based on individual scene content.