MATLAB Project 1

Description

Warm Ups

Part 1

• Spend some time getting to know your team members. Exchange contact info. Discuss time to work on the project together after the class.

• Take a group picture (needed for Part A).

Part 2

Spend some time playing with MATLAB, reading/watching the tutorials, and exploring Image Processing Toolbox. Use the following help commands

• help function_name (try size, length, sum, max, min, find, ones, zeros, imread, imshow, imhist, etc.)

Part A

Use two images for the following steps. One is the group picture you just took. For the second one, find a landscape image from the Internet (the image should be of at least 800×600 pixels).

1. Read and display the image.

2. Convert the image to grayscale image (In MATLAB use rgb2gray()).

3. Find the maximum and minimum intensity values in the grayscale image, and their corresponding spatial coordinates. If multiple locations are found, you only need to show one spatial location.

4. Record the size of the grayscale image file in bytes and note the quality of the image; consider the overall scene and small details.

5. Write your own code to reduce the resolution of the original grayscale image. Display the image and note the image quality. Determine the lowest resolution that allows acceptable viewing. Record and compare the size of this image to that of the original image.

Part B

The main goal of this assignment is to determine the number and area of the bacteria in the given grayscale image (electronic version of the image can be found on Canvas).

1. Apply a threshold to the image to separate the bacteria from the background. Display the grayscale image and the binary image. Compute the total area of the bacteria in the image.

2. Label pixels belonging to each bacterium with a unique label. Display the labeled image.

3. Compute the area of each bacterium in the binary image. Would you say all the bacteria belong to the same family?