Podcast
Questions and Answers
What is the primary reason for applying contrast stretching after directional first differencing?
What is the primary reason for applying contrast stretching after directional first differencing?
- To reduce the noise in the image
- To reduce the number of pixels in the image
- To enhance the edges in the image
- To rescale the result to the byte range (correct)
What is the main advantage of using the Laplacian convolution kernel for edge enhancement?
What is the main advantage of using the Laplacian convolution kernel for edge enhancement?
- It is a first derivative
- It is invariant to rotation (correct)
- It is sensitive to the direction of edges
- It is used for density slicing
What is the purpose of density slicing in image processing?
What is the purpose of density slicing in image processing?
- To enhance the edges in the image
- To perform image subtraction
- To divide the image into different regions
- To display a range of DNs at a single DN in the output image (correct)
What is the result of applying a directional first differencing filter in a particular direction?
What is the result of applying a directional first differencing filter in a particular direction?
What is the difference between the gradient and the Laplacian in image processing?
What is the difference between the gradient and the Laplacian in image processing?
What is the outcome when six different slices are established in density slicing?
What is the outcome when six different slices are established in density slicing?
What is the primary purpose of using spectral indices in image enhancement?
What is the primary purpose of using spectral indices in image enhancement?
What is the benefit of using band ratioing in image arithmetic?
What is the benefit of using band ratioing in image arithmetic?
Why can band ratioing highlight subtle spectral changes?
Why can band ratioing highlight subtle spectral changes?
What is the result of using normalized difference indices in image arithmetic?
What is the result of using normalized difference indices in image arithmetic?
What is the primary purpose of performing contrast enhancement in image processing?
What is the primary purpose of performing contrast enhancement in image processing?
What is the result of applying a Gaussian stretch to an image?
What is the result of applying a Gaussian stretch to an image?
What is the primary difference between histogram equalization and histogram matching?
What is the primary difference between histogram equalization and histogram matching?
What is the effect of applying a spatial filter to an image with high spatial frequency?
What is the effect of applying a spatial filter to an image with high spatial frequency?
What is the purpose of density slicing in image processing?
What is the purpose of density slicing in image processing?
What is the primary goal of histogram matching?
What is the primary goal of histogram matching?
What happens when there is a large concentration of pixels in the input histogram having levels very near 0?
What happens when there is a large concentration of pixels in the input histogram having levels very near 0?
What is the purpose of performing histogram equalization on the input image in histogram matching?
What is the purpose of performing histogram equalization on the input image in histogram matching?
What is the difference between histogram equalization and histogram matching?
What is the difference between histogram equalization and histogram matching?
What is the purpose of the transformation function G in histogram matching?
What is the purpose of the transformation function G in histogram matching?
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