Activity 31 - More image manipulation 🎨

Complete the setup to install the cImage module and read some key differences based on the latest updates to the module.

Create a file called mouse.py and save it to your cs100/ch6 folder. Save the following images to the same location with the name: lutherbell.gif and mickey.jpg.

1. Copy the following code to your python file:

   from image import *
      
   # get image
   img = FileImage("lutherbell.gif")
   width = img.getWidth()
   height = img.getHeight()
      
   # create window
   myWin = ImageWin(width, height, "Awesome Image")
      
   # display image on window
   img.draw(myWin)
   
   # print out RGB values of pixel based on where mouse clicks
   x,y = myWin.getMouse()
   p = img.getPixel(x,y)
   print("Pixel values: ", p.getRed(), p.getGreen(), p.getBlue()) 
      
   # exit window when user clicks on any part of it
   myWin.exitOnClick()
   

2. Modify the script to display the Mickey Mouse picture.

3. Display Mickey with blue shoes instead of yellow ones. Hint: go through each pixel and compare how close it is to the color yellow (you’ll need to play with what it means for a pixel color to be ‘close enough’).

4. Write a function negative(p) that receives a pixel and returns its corresponding negative pixel. Then use this function to create the negative picture of your Mickey Mouse.

5. Using similar code as in the previous step, create a gray scale image of your Mickey Mouse. The greyscale pixel will use a value x as the red, green, and blue values, where x is an average of the original RGB values.

If you finish early

1. Modify the script to display Mickey with a purple shirt instead of a red one.

How to submit

Submit your working mouse.py to Moodle AND INCLUDE THE IMAGE YOU USED.