DIGITAL IMAGE PROCESSING TEST EXAM WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST
2024 – 2025 ALREADY GRADED A+
Wide histogram - ANSWERS-Image very black and white - high contrast... like
this slide!
Narrow Histogram - ANSWERS-Image very gray - low contrast... like this slide
Components of an Algorithm - ANSWERS--Look-up Table (LUT)
-NoiseReduction
-ID borders of collimation
Look-Up Tables (LUT) - ANSWERS-• Bank of stored "Perfect Histograms"- that
appear as numerical tables- one for every
body part and projection
• Histogram is used as a reference with predetermined
, parameters to best demonstrate a
specific region of the body in a specific
position.
Wide Window Width - ANSWERS-Lots ofshades
of gray, low contrast
Narrow Window Width - ANSWERS-Few shades of
gray, high contrast
Bit Depth - ANSWERS-- Number of shades of gray each pixel is capable of
displaying
- M x N x k bits
- Each pixel =2k gray levels
- Increase bit depth = more shades of gray
Classes of Image Processing (5)? - ANSWERS-1. Image Enhancement
Goal: to generate a more diagnostic image;
sharpening
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST
2024 – 2025 ALREADY GRADED A+
Wide histogram - ANSWERS-Image very black and white - high contrast... like
this slide!
Narrow Histogram - ANSWERS-Image very gray - low contrast... like this slide
Components of an Algorithm - ANSWERS--Look-up Table (LUT)
-NoiseReduction
-ID borders of collimation
Look-Up Tables (LUT) - ANSWERS-• Bank of stored "Perfect Histograms"- that
appear as numerical tables- one for every
body part and projection
• Histogram is used as a reference with predetermined
, parameters to best demonstrate a
specific region of the body in a specific
position.
Wide Window Width - ANSWERS-Lots ofshades
of gray, low contrast
Narrow Window Width - ANSWERS-Few shades of
gray, high contrast
Bit Depth - ANSWERS-- Number of shades of gray each pixel is capable of
displaying
- M x N x k bits
- Each pixel =2k gray levels
- Increase bit depth = more shades of gray
Classes of Image Processing (5)? - ANSWERS-1. Image Enhancement
Goal: to generate a more diagnostic image;
sharpening
