Histogram Equalization Quiz

What type of transformation function is used in histogram equalization?

• A) Linear

• B) Exponential

• C) Logarithmic

• D) Sigmoid

Which of the following is a limitation of histogram equalization?

• A) It may amplify noise in the image

• B) It can only be applied to black and white images

• C) It requires complex mathematical calculations

• D) It reduces the file size of the image

What is the main advantage of using histogram equalization for image enhancement?

• A) It is a simple and fast process

• B) It works well for all types of images

• C) It does not alter the original image

• D) It can improve the visibility of details in an image

What is histogram equalization?

• A) A technique used to adjust the brightness of an image

• B) A method to enhance the contrast of an image

• C) A process to resize an image

• D) A way to rotate an image

Which of the following best describes the purpose of histogram equalization?

• A) To make an image brighter

• B) To make an image sharper

• C) To improve the contrast of an image

• D) To add noise to an image

When applying histogram equalization, what happens to the intensity levels of the image?

• A) They are randomly shuffled

• B) They are redistributed to cover the entire range

• C) They are compressed towards the middle

• D) They are inverted

In histogram equalization, what does the cumulative distribution function (CDF) represent?

• A) The original histogram of the image

• B) The probability density function of the image

• C) The transformation function for equalization

• D) The brightness levels of the image

Which of the following statements is true about histogram equalization?

• A) It can only be applied to grayscale images

• B) It can be used to adjust the color balance of an image

• C) It is a non-linear process

• D) It reduces the dynamic range of an image

What effect does histogram equalization have on an image with low contrast?

• A) It decreases the contrast further

• B) It increases the contrast

• C) It has no effect on the contrast

• D) It blurs the image

Which step is NOT involved in the process of histogram equalization?

• A) Computing the histogram of the image

• B) Calculating the cumulative distribution function

• C) Applying a linear transformation to the image

• D) Converting the image to a different color space