The process of working with a picture to produce a result that is superior to the original image in terms of its suitability for a certain application is referred to as image enhancement. It offers a variety of options that may be used within the context of digital image enhancement methods, with the goal of improving the perceptible look of photographs. The imaging approach, the job at hand, and the settings under which one is seeing all play a significant role in determining the relevant possibilities for such procedures. This study will provide an overview of several techniques that are often used for the improvement of medical images. The purpose of this research is to give an analysis of the numerous methods that may be used to improve medical images. The analysis that is presented in the research helps to identify a picture of high quality, which is significant for the preparation of medical imaging applications. In addition to this, it offers an analysis of DICOM, which is a standard that is used in almost every device used for radiology, cardiology imaging, and radiotherapy, as well as in an increasing number of devices used for achieving good image quality in other medical specialties, such as ophthalmology and dentistry. In this work, we also studied previous research, and we came to the conclusion that the use of watermarking as a security measure has yielded the most encouraging results in the case of medical photographs. As a result, we have made the decision to use watermarking strategies in order to provide protection for medical photographs.