ImageJ analysis: Measuring the diameter/length and area of multiple pictures simultaneously

Using the image processing functions in ImageJ to measure the diameter and area in different pictures at once. This function is really helpful if you want to follow/track the changes in the diameter or area of different materials (food or milk) during processing. By recording a video during processing this material, we will be able to convert this video into pictures and then compare the changes in the area or diameter of the material during processing as shown in this video.