Download MATLAB

Use MATLAB to read the Lenna.png and display this image.

Output this image as another format: Lenna.bmp

Question 2 Color Map

In MATLAB, use the following statement to display a surface:

surf(peaks);

Explore the effect of different color maps including:

1. jet
2. jet (10)
3. jet (20)
4. gray
5. flipud( ) of jet

Create screenshots to show the results.

Question 3 Histogram

In MATLAB, use rgb2gray( ) to convert Lenna.png to a gray image.

Then, display the histogram of this gray image.

Question 4 Edge Detection

In MATLAB, perform the following tasks:

1. input cell.tif
2. use sobel to do edge detection on this image
3. use image dilation
4. call image fill to fill the holes
5. call imclearborder( )
6. use imerode( ) function
7. use labeloverlay( ) to show an overlapped image
8. use bwperim( ) and then highlight the outline of the cell

.

Then, create screenshots of each task. The screenshots should include the resulting window as well as the scripts you tried.

Submission of Lab 3

You should create screenshots for all the tasks in this lab.