Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The subtraction image shows gray for pixel value = 0, black for negative, and white for positive value. The color-coded Jacobian map shows green for Jacobian <1, red for Jacobian >1, and yellow for Jacobian = 1.
