ogram provided displays an image and applies a grayscale effect using psychologically accurate transformations. Define a second version of the grayscale function, called grayscale2, that uses the allegedly crude method of simply averaging each RGB value to apply grayscale. Test the function by comparing its results with those of the other version discussed earlier.

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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The program provided displays an image and applies a grayscale effect using psychologically accurate transformations.

Define a second version of the grayscale function, called grayscale2, that uses the allegedly crude method of simply averaging each RGB value to apply grayscale. Test the function by comparing its results with those of the other version discussed earlier.

gramming Exercise 7.6
Instructions
grayscale.py
images.py
smokey.gif
Q Desktop
2 File: graysacle.py
The program provided displays an image and applies a grayscale
3 Project 7.6
effect using psychologically accurate transformations.
4 Compares two different grayscale methods.
5 III
Define a second version of the grayscale function, called
grayscale2, that uses the allegedly crude method of simply
7 from images import Image
8
averaging each RGB value to apply grayscale. Test the function
by comparing its results with those of the other version discussed
10 def grayscalel(image):
earlier.
11
""Converts an image to grayscale using the
psychologically accurate transformations."" I
for y in range(image.getHeight()):
for x in range(image.getWidth()):
12
13
Grading
14
15
(r, g, b) = image.getPixel(x, y)
When you have completed your program, click the Submit
r = int(r * 0.299)
g = int(g * 0.587)
b = int(b * 0.114)
16
button to record your score.
17
|18
>- Terminal
sandbox $ |
Transcribed Image Text:gramming Exercise 7.6 Instructions grayscale.py images.py smokey.gif Q Desktop 2 File: graysacle.py The program provided displays an image and applies a grayscale 3 Project 7.6 effect using psychologically accurate transformations. 4 Compares two different grayscale methods. 5 III Define a second version of the grayscale function, called grayscale2, that uses the allegedly crude method of simply 7 from images import Image 8 averaging each RGB value to apply grayscale. Test the function by comparing its results with those of the other version discussed 10 def grayscalel(image): earlier. 11 ""Converts an image to grayscale using the psychologically accurate transformations."" I for y in range(image.getHeight()): for x in range(image.getWidth()): 12 13 Grading 14 15 (r, g, b) = image.getPixel(x, y) When you have completed your program, click the Submit r = int(r * 0.299) g = int(g * 0.587) b = int(b * 0.114) 16 button to record your score. 17 |18 >- Terminal sandbox $ |
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