```pythonimport imagedef rotate(pic): '''Returns an image rotated 90 degrees''' pass # You can leave this or remove it # Your code here to rotate the image # Hint: you'll have to create an empty image that swaps the # width and height of pic - it will have the same number of # columns as pic has rows and the same number of rows as # pic has columns. Then copy the pixels from pic into the # rotated positions in the empty image.def main():```**Explanation:**The code snippet is designed to rotate an image by 90 degrees. It includes a function `rotate()` that accepts a parameter `pic`, representing the image to be rotated. - The `rotate()` function contains a docstring that describes its purpose: to return an image rotated by 90 degrees.- Inside the function, the `pass` statement is a placeholder indicating where the rotation logic should be implemented. **Steps to Implement the Rotation:**1. **Create an Empty Image**: - To rotate the image, a new image needs to be created with swapped dimensions. This new image will have the width equal to the height of the original image and the height equal to the width of the original image.2. **Copy Pixels**: - Iterate over each pixel in the original image. - Map and copy each pixel to its new location in the empty image.The `main()` function is defined to possibly execute the code but currently lacks implementation details. ### Python Program for Image ProcessingBelow is a Python code snippet for a simple image processing program. It utilizes the graphics library to load, manipulate, and display an image.```pythondef main(): '''Controls the program''' fname = "https://runestone.academy/runestone/static/instructorguide/_static/arch.jpg" img = image.Image(fname) width = img.getWidth() height = img.getHeight() win = image.ImageWin(height, width) rotate(img) img.draw(win)main() # Run the program```#### Explanation- **Function `main()`:** This controls the program execution. It is responsible for loading and displaying an image.- **fname:** A string containing the URL of the image (`arch.jpg`), which will be processed.- **img:** The image object is created using the specified file name.- **width & height:** The dimensions of the image are retrieved through `getWidth()` and `getHeight()`.- **win:** An `ImageWin` object is created with the dimensions of the image, which serves as a window to display the image.- **rotate(img):** A function call to rotate the image (implementation not shown here).- **img.draw(win):** Draws the image onto the window provided by `ImageWin`.#### Image Display- The image displayed is of an archway covered with greenery and flowers, giving a sense of architectural beauty and natural aesthetics. This image serves as an example for the image processing task executed by the Python program.This educational website section intends to guide students through basic image manipulation using Python, demonstrating reading, modifying, and displaying an image with simple code.

Note: Please maintain proper code spacing (indentation). And importing all necessary…

import image def rotate(pic): '''Returns an image rotated 90 degrees''' pass #You can leave this or remove it #Your code here to rotate the image #Hint: you'll have to create an empty image that swaps the #width and height of pic - it will have the same number of #columns as pic has rows and the same number of rows as #pic has columns. Then copy the pixels from pic into the #rotated positions in the empty image. def main():

import image def rotate(pic): '''Returns an image rotated 90 degrees''' pass #You can leave this or remove it #Your code here to rotate the image #Hint: you'll have to create an empty image that swaps the #width and height of pic - it will have the same number of #columns as pic has rows and the same number of rows as #pic has columns. Then copy the pixels from pic into the #rotated positions in the empty image. def main():

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.

Question

```python
import image

def rotate(pic):
'''Returns an image rotated 90 degrees'''
pass # You can leave this or remove it
# Your code here to rotate the image
# Hint: you'll have to create an empty image that swaps the
# width and height of pic - it will have the same number of
# columns as pic has rows and the same number of rows as
# pic has columns. Then copy the pixels from pic into the
# rotated positions in the empty image.

def main():
```

**Explanation:**

The code snippet is designed to rotate an image by 90 degrees. It includes a function `rotate()` that accepts a parameter `pic`, representing the image to be rotated.

- The `rotate()` function contains a docstring that describes its purpose: to return an image rotated by 90 degrees.
- Inside the function, the `pass` statement is a placeholder indicating where the rotation logic should be implemented.

**Steps to Implement the Rotation:**

1. **Create an Empty Image**:
- To rotate the image, a new image needs to be created with swapped dimensions. This new image will have the width equal to the height of the original image and the height equal to the width of the original image.

2. **Copy Pixels**:
- Iterate over each pixel in the original image.
- Map and copy each pixel to its new location in the empty image.

The `main()` function is defined to possibly execute the code but currently lacks implementation details.

### Python Program for Image Processing

Below is a Python code snippet for a simple image processing program. It utilizes the graphics library to load, manipulate, and display an image.

```python
def main():
'''Controls the program'''
fname = "https://runestone.academy/runestone/static/instructorguide/_static/arch.jpg"
img = image.Image(fname)
width = img.getWidth()
height = img.getHeight()
win = image.ImageWin(height, width)
rotate(img)
img.draw(win)

main() # Run the program
```

#### Explanation

- **Function `main()`:** This controls the program execution. It is responsible for loading and displaying an image.
- **fname:** A string containing the URL of the image (`arch.jpg`), which will be processed.
- **img:** The image object is created using the specified file name.
- **width & height:** The dimensions of the image are retrieved through `getWidth()` and `getHeight()`.
- **win:** An `ImageWin` object is created with the dimensions of the image, which serves as a window to display the image.
- **rotate(img):** A function call to rotate the image (implementation not shown here).
- **img.draw(win):** Draws the image onto the window provided by `ImageWin`.

#### Image Display

- The image displayed is of an archway covered with greenery and flowers, giving a sense of architectural beauty and natural aesthetics. This image serves as an example for the image processing task executed by the Python program.

This educational website section intends to guide students through basic image manipulation using Python, demonstrating reading, modifying, and displaying an image with simple code.

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