ImageJ is a Java-based application for analyzing imahe.ImageJ work or as an online applet or as a download application that you see here. ImageJ can display, edit, analyze, process, save and print 8-bit, 16-bit and 32-bit images and supports most major formats, including TIFF, GIF, JPEG, BMP, DICOM, plantings and “raw” .The main use is that ImageJ can calculate area and important points, which can be useful for graphic designers. However, it is slightly higher, which is good to measure distances and angles, create histograms density and line profile plots too. It supports other standard image processing functions such as contrast manipulation too, sharpening, smoothing, edge detection and media filtering.Kahit ImageJ can be a little slow in Java, it is a good tool for image analysis considers free.