Define the terms 'Sampling' and 'Quantization' in context of digital image processing. A medical image has size 8x8 inches, the sampling reduction is 5 cycles/mm, calculate the number of pixels required for the medical image.
Sampling in digital image processing refers to the process of converting a continuous image (such as a physical image) into a discrete digital image by measuring the intensity of the image at regular intervals. It essentially involves selecting a set of sample points (or pixels) from the continuous image. The sampling rate, often expressed in terms of cycles per millimeter (cycles/mm) or pixels per unit distance, determines how frequently the image is sampled. A higher sampling rate results in a finer resolution and more pixels, leading to ___ ___ ______ ____ _________ _______.
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The arithmetic decoding process is the reverse of the encoding procedure. Decode the message 0.23355 given the coding model.
| Symbol | Probability |
| a | 0.2 |
| e | 0.3 |
| i | 0.1 |
| o | 0.2 |
| u | 0.1 |
| ! | 0.1 |
Define the terms 'Sampling' and 'Quantization' in context of digital image processing. A medical image has size 8x8 inches, the sampling reduction is 5 cycles/mm, calculate the number of pixels required for the medical image.
Prove that both 2-D continuous and discrete Fourier transforms are linear operations.
Explain how the MPP algorithm behaves under the following conditions: b
i) 1-pixel wide, 1-pixel deep indentations.
ii) 1-pixel wide, 2-or- more pixel deep indentations.
iii) 1-pixel wide, 1-pixel longprotrusions.
iv) 1-pixel wide, n-pixel long protrusions.
The white bars in the test pattern shown are 7 pixels wide and 210 pixels high. The separation between bars is 17 pixels. What would this image look like after application of
i) A 3×3 arithmetic mean filter?
ii) A 7x7 arithmetic mean filter?
iii) A 9×9 arithmetic mean filter?
What is Discrete Fourier Transform (DFT)? Find DFT of the function:
Two images, f (x,y) and g (x,y), have histograms he and hg. Give the condition under which you can determine the histograms of
i) f(x,y)+g(x, y)
ii) f(x,y)-g(x,y)
iii) f(x, y)xg(x, y)
iv) f(x,y)+g(x,y)