What effect does veiling glare have on an image?

Veiling glare affects an image by introducing unwanted light scatter that reduces the contrast of the objects within the image. This occurs because veiling glare results from optical imperfections and stray light within the imaging system, which can cause straight lines or patterns to appear blurred or less distinct. Consequently, objects may not stand out against their backgrounds as clearly as they would without this glare, leading to a decrease in overall image quality and clarity.

Issue with contrast arises because the scatter causes an overlap in brightness levels, making it challenging to differentiate between various anatomical structures. In medical imaging, maintaining high contrast is crucial for the accurate interpretation and diagnosis of conditions. Therefore, understanding veiling glare and its impact on image quality is vital for radiologists and technicians in ensuring that images are as clear and precise as possible for diagnostic purposes.