M2 L4 Post processing

image flip

reorientates to view the radiograph properly

image inversion

changes the black and white. used to see pathologies better

high-pass filtering/edge enhancement

increases contrast and results in sharper details. suppresses low frequencies

low-pass filtering/smoothing

smoothing, reducing noise and contrast.

windowing

change brightness and contrast of the image

window width (WW)

rnage of numbers that represent the image

window level (WL)

center of the range of numbers

what does window and level do?

controls how dark or bright an image will be

what controls contrast other than kVp

window width

shuttering

blacken out the birghtness around the collimation border. reduces amount of white light entering the eye enhacnind viewing conditions

imaging orientation

way anatomy is oriented on the imaging plate

where should the green/blue car on cassettes be placed

top or right hand side of the patient

imaging stitching

multiple images being stitched together to create continuous imaging

what are the 2 different magnifications

magnifying glass and zoom function

what if there is a wide window width

image will have a lot of grey shades

what if the wide window with is narrow?

the image with have a alot of contrast

The term that is used when the DR system is finding the collimated area on the plate is called

exposure field recognition