Analyze ECAT files with this tool. imgmatch help you check if two ECAT 6.3 or two ECAT 7 files are equal. Returns 0 if files match and a nonzero value otherwise. Program is meant mainly for testing purposes.
Image1 and image2 must be in the same format, and they must have same matrix size and plane numbers. This tool is command prompt based so you shouldnt expect any fancy Gui to guide you through the process.

Usage:
imgmatch [Options] <Image1> <Image2>

Options:
-header=<y|N>
All values in the headers are required to match (y), or not tested (n, default).
-planes=<Y|n>
Planes numbers are required to match (y, default) or not tested (n).
-frames=<Y|n>
Frame times are required to match (y, default) or not tested (n).
-abs=<value>
Absolute result differences must not exceed the specified limit value; by default no difference is allowed.
-roughly
Pixel values are required to match roughly (99.9%), not exactly.
-around
Pixel values are required to be around the same (90%), not exactly.
-h or --help
Print this message and exit.
--version or --build
Print software build information and exit.
--silent
Program works silently, printing only error and warning messages.
--verbose
Program prints more information about what it is doing.

The license of this software is Freeware, you can free download and free use this calculator software.