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Database System Concepts
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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Instructions To enlarge an image, one must fill in new rows and columns with color information based on the colors of neighboring positions in the original image. • Develop and test a function named enlarge . • This function should expect an image and an integer factor as arguments. The nction should build and return a new image that represents the expansion of the original image by the factor. Hint: Copy each row of pixels in the original image to one or more rows in the new image To copy a row, use two index variables, one that starts on the left of the row and one that starts on the right. These two indexes converge to the middle. This will allow you to copy each pixel to one or more positions of a row in the new image.) An example of the program is shown below: Original Enlarged enlarge.py 1 """ 2 File: enlarge.py 3 Project 7.11 4 5 Defines and tests a function to enlarge an image. 6 "||||| 7 8 from images import Image 9 10 def enlarge (image, factor): 11 images.py 12 13 14 15 def main(): 16 17 18 19 20 21 if __name__ 22 main() 23 24 25 U """Builds and returns a copy of the image which is larger by the factor.""" pass filename = image newimage newimage.draw() = smokey.gif input("Enter the image file name: ") Image(filename) enlarge (image, 2) = "__main__": +
Transcribed Image Text:Instructions To enlarge an image, one must fill in new rows and columns with color information based on the colors of neighboring positions in the original image. • Develop and test a function named enlarge . • This function should expect an image and an integer factor as arguments. The nction should build and return a new image that represents the expansion of the original image by the factor. Hint: Copy each row of pixels in the original image to one or more rows in the new image To copy a row, use two index variables, one that starts on the left of the row and one that starts on the right. These two indexes converge to the middle. This will allow you to copy each pixel to one or more positions of a row in the new image.) An example of the program is shown below: Original Enlarged enlarge.py 1 """ 2 File: enlarge.py 3 Project 7.11 4 5 Defines and tests a function to enlarge an image. 6 "||||| 7 8 from images import Image 9 10 def enlarge (image, factor): 11 images.py 12 13 14 15 def main(): 16 17 18 19 20 21 if __name__ 22 main() 23 24 25 U """Builds and returns a copy of the image which is larger by the factor.""" pass filename = image newimage newimage.draw() = smokey.gif input("Enter the image file name: ") Image(filename) enlarge (image, 2) = "__main__": +
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