Which factor does not affect the quality of a radiographic image?

The quality of a radiographic image is influenced by several critical factors that directly impact the image's clarity, contrast, and overall diagnostic value. The color of the film used is not one of these decisive factors, particularly because the performance of radiographic film is more related to its sensitivity to radiation and the type of emulsion it possesses rather than its color.

In contrast, exposure time to radiation plays a significant role in image quality, as inadequate exposure can lead to underexposed images, while excessive exposure may result in overexposure. Similarly, the type of detecting unit—whether film-screen systems, digital detectors, or computed radiography—affects how radiation is captured and converted into an image. Lastly, the kilovolt peak setting is crucial because it determines the penetrating power of the x-rays; higher kilovoltage can improve contrast in certain situations but may also introduce noise.

Therefore, focusing on the intrinsic technical attributes of the imaging process reveals that the film's color is less relevant to the quality outcomes of the radiographic image compared to the other factors mentioned.