Image-2 Exercises

< CS101

For these exercises, write code to manipulate and print the image "x.png". Some basic starter code to load and print the image is provided. Modify and add lines to the starter code as needed to solve each exercise. (This is the last part of homework1.)

1.

Write code to set the pixel at (0, 0) to blue (i.e. blue value is 255, red and green are left at 0).

image = new SimpleImage("x.png");
image.setZoom(20);

pixel = image.getPixel(0, 0);

print(image);

image-2-ex1

2.

Write code to set the pixel at (0, 0) to be violet (i.e. red and blue both 255, green left at 0).

image = new SimpleImage("x.png");
image.setZoom(20);

pixel = image.getPixel(0, 0);

print(image);

image-2-ex2

3.

Write code to set the pixel at (1, 0) to be pure white.

image = new SimpleImage("x.png");
image.setZoom(20);

pixel = image.getPixel(0, 0);

print(image);

image-2-ex3

4.

Write code to set the pixels (0, 0) and (1, 0) to be blue.

image = new SimpleImage("x.png");
image.setZoom(20);

pixel = image.getPixel(0, 0);

print(image);

image-2-ex4

Each click of a Run button saves that code on the computer running the browser. The button below retrieves the all code exercises listed to the right of the button.

count 4 : image-2-ex1 image-2-ex2 image-2-ex3 image-2-ex4

(code appears here)