• Home
  • Textbooks
  • Multimedia Signals and Systems
  • DIGITAL IMAGE AND VIDEO PROCESSING

Multimedia Signals and Systems

Mrinal Kr. Mandal

Chapter 11

DIGITAL IMAGE AND VIDEO PROCESSING - all with Video Answers

Educators

Chapter Questions

View

Problem 1

Create a gray level image or download one from the WWW. Create two images with size $60 \%$ and $140 \%$ of the original image in both horizontal and vertical directions.

James Kiss
James Kiss
Numerade Educator
00:25

Problem 2

Select a rectangular and an elliptical region in the image from the previous problem. Crop the selected regions from the image.

Ian Shi
Ian Shi
Numerade Educator

Problem 3

Create a dark gray level image or download one from the WWW. Plot the gray level histogram of the image. Using the contrast stretching method, increase the average brightness level of the image. Compare the histograms of the original and contrast-stretched images.

Check back soon!

Problem 4

Using the MATLAB "histeq" function, perform the histogram equalization of the image. Compare the histograms of the original and contrast-stretched images.

Check back soon!
01:19

Problem 5

Install a few image processing tools (several of these tools are downloadable from the WWW) listed in Table 11.1. Compare their features.

Patrick Burns
Patrick Burns
Numerade Educator

Problem 6

Create two images (or download from the web. Calculate seven transition frames corresponding to the right-to-left and bottom-to-top wipe modes. Display the transition frames using the MATLAB movie function.

Check back soon!
01:03

Problem 7

Consider the previous problem. Calculate the transition frames corresponding to the dissolve operations.

Lucas Finney
Lucas Finney
Numerade Educator
05:04

Problem 8

Consider the previous problem again. Calculate the transition frames corresponding to the fade out and fade in operations.

Ajay Singhal
Ajay Singhal
Numerade Educator
01:47

Problem 9

What is video segmentation? Describe a few techniques that are typically used to segment a video.

Adam Conner
Adam Conner
Numerade Educator

Problem 10

Create a digital video sequence or download it from the WWW. Calculate and plot the difference of histograms of the consecutive frames and choose the peaks as the location of the abrupt transitions. Verify manually the correctness of the AT locations determined by the histogram method.

Check back soon!
03:14

Problem 11

Explain the different types of camera motions that are used in a video. Draw the schematic of motion fields for different types of camera motions.

Darshan Maheshwari
Darshan Maheshwari
Numerade Educator

Problem 12

Consider a still image, and divide it into small blocks of size $4 \times 4$. Transform the image such that the motion vectors between two consecutive frames matches the motion vectors for the zoom operation. Display the image frames using MATLAB movie function.

Check back soon!