How Check If Two Images Can Be Copies using a PHP Image Correlation Package that Uses JavaScript to Perform Browser Side Calculations By Manuel Lemos Comparing images can be a valuable activity for many types of applications.

For instance, an application can determine if an image is mostly a copy of another embodiment.

Another application can compare two movie images to determine if there are significant changes between the two scenes.

This package implements an image comparison approach calculating a correlation factor using JavaScript and PHP code.