ImageJ is a freeware available online. It is widely used in the medical imaging field for image treatment and analysis.
It allows, among others, to link DICOM (Digital Imaging and Communication in Medecine) images to JPEG images.

National Institutes of Health (NIH)link.
Direct link to ImageJ website.


Use ImageJ for activities

Use ImageJ alone

Open a DICOM image available

Open a DICOM image from a USB flash drive

Change an image windowing

Convert an opened image to JPEG

Show DICOM metadata

Analyze an image region content