Assignment: Post Processing

In a digital image, low frequencies represent:

large objects

The purpose of a LUT is to

apply a predetermined scale of contrast to the digital data set

Whenever a displayed image is windowed, which of the following default processes is re-applied?

gradation processing

In an effort to optimally display the pixels for the area of interest when exposure is greater or less than what is needed to produce an image, ______ occurs.

automatic rescaling

Changing the slope of the look-up table graph (gradation curve) will increase or decrease

contrast

The shape of the histogram is anatomy specific.

true

Low-pass filtering is also known as

smoothing

A histogram is the result when a digital image is sorted by the:

values contained by each pixel

Curve shifts along the x-axis of a gradient curve, without any change in slope, indicate:

changes in brightness