What causes a digital image to be too dark?

A digital image appears too dark primarily due to overexposure. Overexposure occurs when the image receptor receives too much radiation, resulting in a saturation of the data that exceeds the optimal range for capturing detail. This surplus of exposure can lead to an image where areas are overly dense, obscuring essential anatomical structures and nuances needed for accurate diagnosis.

In digital radiography, overexposure makes it difficult to interpret the image correctly because the excessive brightness and contrast can wash out critical features. Understanding exposure levels is vital for producing diagnostic images; hence, recognizing overexposure is essential for effective radiographic practice and ensuring quality patient care. Proper techniques, including optimal settings on the equipment and maintaining appropriate distances and angles during the imaging process, help prevent overexposure and ensure a well-balanced image.