Digital Image Processing

    Which filter retains image detail better than the arithmetic mean filter?

• Harmonic Mean Filter

• Contra-harmonic Mean Filter

• Geometric Mean Filter

• Median Filter

    Which of the following filters adapts based on local statistical properties of the image?

• Geometric Mean Filter

• Adaptive Median Filter

• Median Filter

• Arithmetic Mean Filter

      Exponential noise is generally found in:

• MRI images

• Optical images

• Radar and ultrasound images

• Laser images

      The mean of uniform noise between values a and b is given by:

• (a + b) / 2

• Ab

• b – a

• a / b

 Which activation function was used in AlexNet instead of traditional sigmoid or tanh?

• Leaky ReLU

• ELU

• ReLU

• Softmax

 Which type of noise appears as sparsely occurring white and black pixels in an image?

• Gaussian Noise

• Uniform Noise

• Salt and Pepper Noise

• Poisson Noise

The Median Filter is categorized as a:

• Linear Filter

• Non-linear Filter

• Frequency Domain Filter

• Adaptive Filter

 To reduce overfitting, AlexNet used a technique called:

• Max Pooling

• Data Normalization

• Batch Normalization

• Dropout

  What is typically assumed about the distribution of additive noise in image processing models?  

• Uniform

• Gaussian

• Salt-and-pepper

• Exponential

 Which edge detection operator uses both vertical and horizontal masks?

• Median filter

• Sobel operator

• Gaussian filter

• Mean filter