Image Enhancement Techniques
This quiz is designed to assess your understanding of various image enhancement techniques commonly used in remote sensing and GIS.
Questions
Which of the following is a spatial domain image enhancement technique?
- Histogram Equalization
- Unsharp Masking
- Fourier Transform
- Principal Component Analysis
What is the purpose of histogram equalization?
- To enhance the contrast of an image
- To reduce the noise in an image
- To sharpen the edges of an image
- To remove the haze from an image
Which of the following is a frequency domain image enhancement technique?
- Histogram Equalization
- Unsharp Masking
- Fourier Transform
- Principal Component Analysis
What is the purpose of unsharp masking?
- To enhance the contrast of an image
- To reduce the noise in an image
- To sharpen the edges of an image
- To remove the haze from an image
Which of the following is a multispectral image enhancement technique?
- Histogram Equalization
- Unsharp Masking
- Fourier Transform
- Principal Component Analysis
What is the purpose of principal component analysis?
- To enhance the contrast of an image
- To reduce the noise in an image
- To sharpen the edges of an image
- To reduce the dimensionality of a multispectral image
Which of the following is a noise reduction image enhancement technique?
- Histogram Equalization
- Unsharp Masking
- Fourier Transform
- Median Filter
What is the purpose of a median filter?
- To enhance the contrast of an image
- To reduce the noise in an image
- To sharpen the edges of an image
- To remove the haze from an image
Which of the following is a haze removal image enhancement technique?
- Histogram Equalization
- Unsharp Masking
- Fourier Transform
- Dark Channel Prior
What is the purpose of a dark channel prior?
- To enhance the contrast of an image
- To reduce the noise in an image
- To sharpen the edges of an image
- To remove the haze from an image
Which of the following is a color image enhancement technique?
- Histogram Equalization
- Unsharp Masking
- Fourier Transform
- Color Balance
What is the purpose of color balance?
- To enhance the contrast of an image
- To reduce the noise in an image
- To sharpen the edges of an image
- To adjust the color balance of an image
Which of the following is a pan-sharpening image enhancement technique?
- Histogram Equalization
- Unsharp Masking
- Fourier Transform
- Brovey Transform
What is the purpose of pan-sharpening?
- To enhance the contrast of an image
- To reduce the noise in an image
- To sharpen the edges of an image
- To merge a high-resolution panchromatic image with a low-resolution multispectral image
Which of the following is an image fusion image enhancement technique?
- Histogram Equalization
- Unsharp Masking
- Fourier Transform
- Wavelet Transform
What is the purpose of image fusion?
- To enhance the contrast of an image
- To reduce the noise in an image
- To sharpen the edges of an image
- To combine two or more images into a single image