What process corrects slight under-exposure or over-exposure errors made by the technologists?

Rescaling is the process that addresses slight under-exposure or over-exposure errors made by technologists in digital radiography. This technique involves adjusting the grayscale values of the digital image after it has been captured. When an image is either too dark (under-exposed) or too bright (over-exposed), rescaling allows for enhancements that correct these exposure errors, effectively recalibrating the image data to reflect a more accurate representation of the anatomical structures being imaged.

By modifying the image histogram to improve brightness and contrast, rescaling helps maintain the diagnostic quality of an image even if the initial exposure settings were not ideal. This process is particularly valuable in digital radiography, where image manipulation can compensate for the inherent limitations of the exposure settings used during the initial capture, thus ensuring better visualization of the subject being imaged.