Digital Image Processing

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Across
  1. 4. size of window width that improves image contrast
  2. 5. change negative (white bone) to positive (dark bone)
  3. 6. used to transform image domains
  4. 7. profound effect on image final appearance
  5. 8. image postprocessing class that improves image quality
  6. 10. image postprocessing class that reduces image size
  7. 12. histogram plots _____ levels
  8. 14. element of a digital image
  9. 16. MRI image domain
  10. 19. multiple sub-images involved in processing
  11. 20. effect of low-pass filter
  12. 22. filter decomposes image into high- and low-frequency components
  13. 23. type of compression where image detail lost
  14. 24. low pass filtering kernel has all values greater than _____
  15. 25. size of kernel that enhances small structures
  16. 26. filter retains high frequency data
Down
  1. 1. sum of kernel values at 0 will suppress _______
  2. 2. controlled by window width
  3. 3. histogram sliding and stretching
  4. 7. no input from radiographer
  5. 9. process with kernel and image
  6. 11. a small matrix
  7. 13. CT image domain
  8. 15. high density area on image has low ________
  9. 17. non-functional pixel
  10. 18. does not involve alteration of raw data
  11. 21. image appearance when histogram values are concentrated at lower end
  12. 27. look-up table slope for high image contrast