Satellite Image Enhancement — MCQs | Digital Image Processing

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1. Which type of enhancement improves contrast by stretching the histogram?



2. Which method is commonly used for reducing haze in satellite images?



3. Which spatial filter enhances high-frequency details in an image?



4. Which enhancement technique is effective in highlighting urban features in satellite images?



5. Which method transforms a satellite image to emphasize vegetation?



6. What is the main purpose of radiometric correction in satellite images?



7. Which technique enhances image details by subtracting a low-pass filtered image from the original?



8. What does NDVI stand for?



9. Which of the following is used to reduce striping noise in satellite images?



10. Which method uses the statistical distribution of pixel values for image enhancement?



11. Which image enhancement technique is best for improving visibility in low-contrast satellite images?



12. Which of the following is a spectral enhancement method?



13. What does PCA stand for in satellite image enhancement?



14. Which enhancement technique helps distinguish different land cover types by combining RGB bands?



15. Which color combination is commonly used in false color composites for vegetation?



16. Which process corrects geometric distortions in satellite images?



17. Which frequency domain technique is used to enhance edges?



18. What does atmospheric correction primarily address?



19. Which of the following methods improves image clarity by enhancing sharp transitions?



20. Which tool can be used for visual enhancement in QGIS or ArcGIS?



21. Which enhancement method helps to identify water bodies more effectively?



22. In image enhancement, what does linear contrast stretching involve?



23. Which of the following helps to enhance textural features in satellite images?



24. Which type of enhancement increases interpretability for human viewers?



25. Which method helps to separate overlapping spectral features?



26. Which of these is an effect of poor contrast in satellite images?



27. Which band combination is ideal for detecting vegetation in Landsat images?



28. Which technique enhances image contrast without affecting the relative radiance values?



29. Which transformation uses mathematical functions to modify pixel values?



30. Which process enhances images for better automated classification accuracy?



31. What does FCC stand for in remote sensing?



32. Which type of enhancement is based on human perception?



33. Which function is used in MATLAB or Python to apply histogram equalization?



34. Which filter emphasizes edges and suppresses uniform areas?



35. What is the purpose of using high-boost filtering?



36. Which enhancement approach can lead to over-enhancement artifacts?



37. Which technique provides better contrast in areas with minimal brightness variation?



38. Which is a disadvantage of histogram equalization?



39. Which index helps in differentiating between built-up areas and vegetation?



40. Which type of enhancement is used to highlight man-made features in a scene?



41. Which of the following is not a radiometric enhancement?



42. Which transformation increases the visibility of subtle image patterns?



43. Which is a key application of satellite image enhancement?



44. Which technique enhances image based on local statistics of pixel neighborhoods?



45. Which of the following is a geometric correction process?



46. Which filter type preserves edges while reducing noise?



47. Which frequency components are enhanced to sharpen an image?



48. What is the role of band fusion in enhancement?



49. Which technique is best for enhancing shadowed regions?



50. Which enhancement technique is commonly used to improve the visibility of features in satellite images taken under varying illumination conditions?



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