Forensic Video Analysis with Arithmetic

arithMATIC allows you to perform mathematical operations on a single video clip or you can two do comparisions between 2 pieces of video.

Listed below is a summary of the tools available in the arithMATIC plug in:

Addition - will allow the user to brighten an image by adding the corresponding pixel values from two tracks of video.

Subtraction - will allow the user to see what has changed between two images by subtracting the pixel values of the second video track minus the corresponding pixel values from the first video track.

Multiplication - will also allow the user to brighten the image by multiplying the corresponding pixel values from two tracks of video.

Division - will also allow the user to perform change detection in the image by dividing the pixel values of the second video track by the corresponding pixel values from the first video track.

Scaling - is a subset of the Multiplication function. It allows the user to multiply the two tracks by a number of greater than 1 to brighten the image and less then 1 to darken an image.  Scaling works on all four modes.