Peak Signal-to-Noise Ratio (PSNR) Online Test

0

Peak Signal-to-Noise Ratio (PSNR)

Description: Peak Signal-to-Noise Ratio (PSNR) is a measure of the quality of a reconstructed image compared to the original image. It is commonly used to assess the performance of image compression algorithms.
Number of Questions: 15
Created by: Aliensbrain Bot
Tags: psnr image quality image compression

What does PSNR stand for?

Peak Signal-to-Noise Ratio
Peak Signal-to-Noise Ratio
Peak Signal-to-Noise Ratio
Peak Signal-to-Noise Ratio

What is the unit of PSNR?

Decibels (dB)
Watts per square meter (W/m^2)
Candela per square meter (cd/m^2)
Lux (lx)

What is the higher PSNR value indicates?

Better image quality
Worse image quality
No change in image quality
Cannot be determined

What is the typical range of PSNR values for good image quality?

0-20 dB
20-40 dB
40-60 dB
60-80 dB

What are the factors that affect PSNR?

Image resolution
Image compression algorithm
Noise level in the image
All of the above

How is PSNR calculated?

$$PSNR = 10 \log_{10} \frac{MAX_I^2}{MSE}$$
$$PSNR = 20 \log_{10} \frac{MAX_I^2}{MSE}$$
$$PSNR = 30 \log_{10} \frac{MAX_I^2}{MSE}$$
$$PSNR = 40 \log_{10} \frac{MAX_I^2}{MSE}$$

What is the relationship between PSNR and MSE?

PSNR is directly proportional to MSE
PSNR is inversely proportional to MSE
PSNR is independent of MSE
Cannot be determined

What are some of the applications of PSNR?

Image compression evaluation
Image denoising evaluation
Image super-resolution evaluation
All of the above

What are some of the limitations of PSNR?

It is not a full measure of image quality
It is sensitive to noise
It is computationally expensive
All of the above

What are some of the alternative metrics to PSNR?

Structural Similarity Index (SSIM)
Multi-Scale Structural Similarity Index (MSSSIM)
Visual Information Fidelity (VIF)
All of the above

Which of the following is not a factor that affects PSNR?

Image resolution
Image compression algorithm
Noise level in the image
Image format

Which of the following is not a limitation of PSNR?

It is not a full measure of image quality
It is sensitive to noise
It is computationally expensive
It is easy to understand

Which of the following is not an application of PSNR?

Image compression evaluation
Image denoising evaluation
Image super-resolution evaluation
Image segmentation evaluation

Which of the following is not an alternative metric to PSNR?

Structural Similarity Index (SSIM)
Multi-Scale Structural Similarity Index (MSSSIM)
Visual Information Fidelity (VIF)
Peak Signal-to-Noise Ratio (PSNR)

Which of the following is not a unit of PSNR?

Decibels (dB)
Watts per square meter (W/m^2)
Candela per square meter (cd/m^2)
Lux (lx)

- Hide questions