When increasing the window level of a digital fluoro image, the image will demonstrate _ as compared to the original image.

Increasing the window level of a digital fluoroscopy image effectively shifts the mid-point of the grayscale representation of the image. By adjusting the window level upward, you are altering the brightness of the image; this results in lighter tones being amplified and darker tones being suppressed. Consequently, the overall brightness of the image will indeed be increased relative to the original image.

This adjustment is essential in digital imaging because it allows the radiologist or technician to enhance the visibility of certain structures or features within the image while still maintaining necessary detail. The control of brightness through window level adjustments is a critical tool in optimizing image diagnostics.

In the context of the other options, "no brightness" would imply there is no change to the brightness levels, while "decreased brightness" suggests a darkening of the image, both of which are contrary to the effects of increasing the window level. "Distinct contrast" does not directly relate to the change in brightness; while it may have its own relevance in image evaluation, it does not address the specific effect of the window level adjustment on brightness.