Step 1
Load the image!

Step 2
Enhance contrast

Step 3
Select a band combination

Step 4
Georeference the image

Step 5
Enhance resolution

Step 6
Enhance sharpness

Step 7
Create maps and graphics

STEP 5 - Enhance Resolution

Resolution is a measure of the ability to resolve small features in the image, and it's a fundamental feature of the remote-sensing system that was used to capture the image. One way to provide greater spatial detail is to digitally merge lower-resolution color images with higher-resolution black-and-white images of the same area.

In this example, looking in detail at a natural-gas field in Wyoming, a false-color infrared band composite with 30 meter pixels (1) is merged with a black-and-white image that has 15 meter pixels (2), resulting in a color image product that has 15 meter spatial detail (3). Before merging, a set of image-to-image “tie points” is selected so that the color and black-and-white images can be closely registered. This registration process is similar to the georeferencing technique described in Step 4.