WorksheetsQuiz 1
Total questions: 10
Worksheet time: 5mins
What operation brightens an image matrix?
Scalar multiplication
Matrix inverse
Matrix determinant
Matrix transpose
Eigenvalues are associated with which matrix property?
Transformation scaling
Zero matrix
Diagonal elements
Rank
PCA stands for:
Principal Component Analysis
Principal Calculation Analysis
Projected Component Architecture
Predictive Classification Algorithm
What is the effect of increasing pixel values using matrix addition?
a)Darkening
What is the effect of increasing pixel values using matrix addition?b)Color inversion
c)No effect
d)Brightening
Brightening
Darkening
Color inversion
No effect
The eigen values of a covariance matrix from a censored data are 2,5 and 1. Identify the eigen value corresponding to first principal component.
5
2
1
3
The matrix formed from a grayscale image is:
Polynomial
Boolean
2D numerical array
Vector
In PCA, eigenvectors are used to:
Identify principal directions
Find the mean of the data
Shrink matrix size
Eliminate noise
What type of matrix is often used in PCA after centering data?
Transition matrix
Covariance matrix
Laplacian matrix
Adjacency matrix
Which operation enhances contrast in image processing?
Transpose
Trace calculation
Matrix inversion
Scalar multiplication
Which concept helps reduce the number of features in high-dimensional data?
Eigenvalue filtering
Eigenvalue filtering
Principal Component Analysis (PCA)
Matrix rotation
