With digital imaging systems, the primary factors affecting final image contrast are the
A)window level and brightness.
B)histogram and look-up-table (LUT).
C)EI numbers and grid ratio.
D)kVp and mAs.

Question

Quizplus · Accepted Answer

With digital imaging systems, the primary factors affecting final image contrast are the histogram and look-up-table (LUT). The histogram represents the distribution of pixel values in the image, while the LUT is a mathematical function that maps those pixel values to display values. By adjusting the histogram and LUT, the radiographer can control the contrast of the final image. The window level and brightness (A) affect the overall appearance of the image, but not the contrast. EI numbers and grid ratio (C) can have an impact on image quality and radiation dose, but not directly on contrast. kVp and mAs (D) affect the exposure of the image, but do not control the contrast directly.

With Digital Imaging Systems, the Primary Factors Affecting Final Image