def test_adjust_component() -> None:
"""Function tests the helper function "_adjust_component."
-Written by Nathan Gomes, 101143780
>>> test_adjust_component()
(0, 0) PASSED
------
>>> test_adjust_component()
(0, 0) FAILED: expected Color(red=31, green=95, blue=158), got Color(red=31, green=95, blue=159)
------
"""
original_image = create_image(1, 1)
set_color(original_image, 0, 0, create_color(50, 90, 155))
expected_image = create_image(1, 1)
set_color(expected_image, 0, 0, create_color(31, 95, 159))
r, g, b = get_color(original_image, 0, 0)
adjusted_image = create_image(1, 1)
set_color(
adjusted_image, 0, 0,
create_color(_adjust_component(r), _adjust_component(g),
_adjust_component(b)))
for x, y, col in adjusted_image:
check_equal("(" + str(x) + ", " + str(y) + ")", col,
get_color(expected_image, x, y))
def test_blue_channel() -> None:
"""Function tests the blue_channel filter.
-Function written by Nathan Gomes - 101143780
>>> blue_channel_test()
(0, 0) PASSED
------
(1, 0) PASSED
------
(2, 0) PASSED
------
>>> blue_channel_test()
(0, 0) PASSED
------
(1, 0) FAILED: expected Color(red=0, green=0, blue=202), got Color(red=0, green=0, blue=201)
------
(2, 0) PASSED
------
"""
original_image = create_image(3, 1)
set_color(original_image, 0, 0, create_color(255, 255, 255))
set_color(original_image, 1, 0, create_color(78, 146, 201))
set_color(original_image, 2, 0, create_color(167, 64, 29))
expected_image = create_image(3, 1)
set_color(expected_image, 0, 0, create_color(0, 0, 255))
set_color(expected_image, 1, 0, create_color(0, 0, 201))
set_color(expected_image, 2, 0, create_color(0, 0, 29))
blue_image = blue_channel(original_image)
for x, y, col in blue_image:
check_equal("(" + str(x) + ", " + str(y) + ")", col,
get_color(expected_image, x, y))
def test_detect_edges_better() -> None:
"""Returns the information on whether or not the filter
detect_edges_better works properly or not. The function returns the
pixels that have passed the test. All pixels have to pass in order to
confirm the success of the detect_edges_better filter. Otherwise, the
filter does not work properly.
-Function written by Malak Abdou - 101139692
>>> test_detect_edges_better()
(0,0) PASSED
(1,0) PASSED
(2,0) PASSED
(3,0) PASSED
(0,1) PASSED
(1,1) PASSED
(2,1) PASSED
(3,1) PASSED
References: check_equal function from fib2.py, provided by ECOR 1051
staff.
"""
black = create_color(0, 0, 0)
white = create_color(255, 255, 255)
original = create_image(4, 2)
set_color(original, 0, 0, create_color(15, 250, 7))
set_color(original, 1, 0, create_color(8, 19, 10))
set_color(original, 2, 0, create_color(5, 55, 15))
set_color(original, 3, 0, create_color(32, 206, 56))
set_color(original, 0, 1, create_color(43, 50, 21))
set_color(original, 1, 1, create_color(11, 23, 40))
set_color(original, 2, 1, create_color(54, 26, 190))
set_color(original, 3, 1, create_color(21, 68, 48))
expected = create_image(4, 2)
set_color(expected, 0, 0, create_color(0, 0, 0))
set_color(expected, 1, 0, create_color(255, 255, 255))
set_color(expected, 2, 0, create_color(0, 0, 0))
set_color(expected, 3, 0, create_color(0, 0, 0))
set_color(expected, 0, 1, create_color(255, 255, 255))
set_color(expected, 1, 1, create_color(0, 0, 0))
set_color(expected, 2, 1, create_color(0, 0, 0))
set_color(expected, 3, 1, create_color(255, 255, 255))
threshold = 15 # Assume threshold chosen is 15.
edges_image = detect_edges_better(original, threshold)
for x, y, color in edges_image:
check_equal('(' + str(x) + ',' + str(y) + ')', color,
get_color(expected, x, y))
def test_extreme() -> None:
"""A test function for extreme contrast.
-Test function written by Leanne Matamoros - 101147405
>>> test_extreme()
Checking pixel @(0, 0) PASSED
------
Checking pixel @(1, 0) PASSED
------
Checking pixel @(2, 0) PASSED
------
Checking pixel @(3, 0) PASSED
------
Checking pixel @(4, 0) PASSED
------
Checking pixel @(5, 0) PASSED
------
>>> test_extreme()
Checking pixel @(0, 0) PASSED
------
Checking pixel @(1, 0) PASSED
------
Checking pixel @(2, 0) PASSED
------
Checking pixel @(3, 0) FAILED: expected Color(red=0, green=0, blue=255),\
got Color(red=0, green=0, blue=25)
------
Checking pixel @(4, 0) PASSED
------
Checking pixel @(5, 0) PASSED
------
"""
original = create_image(6, 1)
set_color(original, 0, 0, create_color(0, 0, 0))
set_color(original, 1, 0, create_color(0, 0, 1))
set_color(original, 2, 0, create_color(127, 127, 127))
set_color(original, 3, 0, create_color(125, 73, 224))
set_color(original, 4, 0, create_color(254, 255, 255))
set_color(original, 5, 0, create_color(255, 255, 255))
expected = create_image(6, 1)
set_color(expected, 0, 0, create_color(0, 255, 0))
set_color(expected, 1, 0, create_color(0, 0, 0))
set_color(expected, 2, 0, create_color(0, 0, 0))
set_color(expected, 3, 0, create_color(0, 0, 255))
set_color(expected, 4, 0, create_color(255, 255, 255))
set_color(expected, 5, 0, create_color(255, 255, 255))
extreme_image = extreme_contrast(original)
for x, y, col in extreme_image:
check_equal('Checking pixel @(' + str(x) + ', ' + str(y) + ')', col,
get_color(expected, x, y))
def flip_horizontal_test() -> None:
"""Function Author: Nathan Gomes - 101143780
A test function for flip_horizontal filter.
>>> flip_horizontal_test()
Checking pixel @(0, 0) PASSED
------
Checking pixel @(1, 0) PASSED
------
Checking pixel @(0, 1) PASSED
------
Checking pixel @(1, 1) PASSED
------
Checking pixel @(0, 2) PASSED
------
Checking pixel @(1, 2) PASSED
------
Checking pixel @(0, 3) PASSED
------
Checking pixel @(1, 3) PASSED
------
"""
original_image = create_image(2, 4)
set_color(original_image, 0, 0, create_color(0, 0, 0))
set_color(original_image, 0, 1, create_color(255, 255, 255))
set_color(original_image, 0, 2, create_color(0, 0, 0))
set_color(original_image, 0, 3, create_color(255, 255, 255))
set_color(original_image, 1, 0, create_color(255, 255, 255))
set_color(original_image, 1, 1, create_color(0, 0, 0))
set_color(original_image, 1, 2, create_color(255, 255, 255))
set_color(original_image, 1, 3, create_color(0, 0, 0))
# I only used two colours in my pixels because the positions of those two
# colours will be more than enough to demonstrate rotation.
expected_image = create_image(2, 4)
set_color(expected_image, 0, 0, create_color(255, 255, 255))
set_color(expected_image, 0, 1, create_color(0, 0, 0))
set_color(expected_image, 0, 2, create_color(255, 255, 255))
set_color(expected_image, 0, 3, create_color(0, 0, 0))
set_color(expected_image, 1, 0, create_color(0, 0, 0))
set_color(expected_image, 1, 1, create_color(255, 255, 255))
set_color(expected_image, 1, 2, create_color(0, 0, 0))
set_color(expected_image, 1, 3, create_color(255, 255, 255))
horizontal_image = flip_horizontal(original_image)
for x, y, col in horizontal_image:
check_equal("Checking pixel @(" + str(x) + ', ' + str(y) + ')', col,
get_color(expected_image, x, y))
def test_posterize() -> None:
"""Function is called without any arguments, calls the posterize filter
within the function body on a preset image and tests it.
Function Author: Nathan Gomes - 101143780
>>> test_posterize()
(0, 0) PASSED
------
(1, 0) PASSED
------
(2, 0) PASSED
------
>>> test_posterize()
(0, 0) PASSED
------
(1, 0) FAILED: expected Color(red=31, green=31, blue=32), got Color(red=31, green=31, blue=31)
------
(2, 0) PASSED
------
"""
original_image = create_image(3, 1)
set_color(original_image, 0, 0, create_color(255, 255, 255))
set_color(original_image, 1, 0, create_color(0, 0, 0))
set_color(original_image, 2, 0, create_color(167, 97, 29))
# These pixels represent two boundary cases and one in which each
# component represents a different quadrant.
expected_image = create_image(3, 1)
set_color(expected_image, 0, 0, create_color(223, 223, 223))
set_color(expected_image, 1, 0, create_color(31, 31, 31))
set_color(expected_image, 2, 0, create_color(159, 95, 31))
poster_image = posterize(original_image)
for x, y, col in poster_image:
check_equal("(" + str(x) + ", " + str(y) + ")", col,
get_color(expected_image, x, y))
def test_vertical_flip():
"""
Author: Siddharth Natamai - 101143016
Tests the flip_vertical function.
>>> test_vertical_flip()
"""
# Create a image with a resolution of 4x2 (8 pixels in total)
original = create_image(4, 2)
set_color(original, 0, 0, create_color(0, 0, 0))
set_color(original, 1, 0, create_color(0, 0, 0))
set_color(original, 2, 0, create_color(255, 255, 255))
set_color(original, 3, 0, create_color(255, 255, 255))
set_color(original, 0, 1, create_color(0, 0, 0))
set_color(original, 1, 1, create_color(0, 0, 0))
set_color(original, 2, 1, create_color(255, 255, 255))
set_color(original, 3, 1, create_color(255, 255, 255))
# Expected image after passing into the flip_vertical function.
expected = create_image(4, 2)
set_color(expected, 0, 0, create_color(255, 255, 255))
set_color(expected, 1, 0, create_color(255, 255, 255))
set_color(expected, 2, 0, create_color(0, 0, 0))
set_color(expected, 3, 0, create_color(0, 0, 0))
set_color(expected, 0, 1, create_color(255, 255, 255))
set_color(expected, 1, 1, create_color(255, 255, 255))
set_color(expected, 2, 1, create_color(0, 0, 0))
set_color(expected, 3, 1, create_color(0, 0, 0))
flipped_image = flip_vertical(original)
# Checks each pixel and prints 'PASSED' or 'FAILED' based on expected
# image values and image passed into flip_vertical
for x, y, col in flipped_image:
check_equal('Checking pixel @(' + str(x) + ', ' + str(y) + ')', col,
get_color(expected, x, y))
def test_detect_edge() -> None:
"""Returns whether the edge detection filter works and if it didn't,\
indicates where it wasn't applied.
-Test function written by Leanne Matamoros - 10114740
>>> test_edge()
Checking pixel @(0, 0) PASSED
------
Checking pixel @(1, 0) PASSED
------
Checking pixel @(2, 0) PASSED
------
Checking pixel @(3, 0) PASSED
------
Checking pixel @(4, 0) PASSED
------
Checking pixel @(0, 1) PASSED
------
Checking pixel @(1, 1) PASSED
------
Checking pixel @(2, 1) PASSED
------
Checking pixel @(3, 1) PASSED
------
Checking pixel @(4, 1) PASSED
------
>>> test_edge()
Checking pixel @(0, 0) PASSED
------
Checking pixel @(1, 0) FAILED: expected Color(red=255, green=255,\
blue=255), got Color(red=0, green=0, blue=0)
------
Checking pixel @(2, 0) PASSED
------
Checking pixel @(3, 0) PASSED
------
Checking pixel @(4, 0) PASSED
------
Checking pixel @(0, 1) PASSED
------
Checking pixel @(1, 1) PASSED
------
Checking pixel @(2, 1) PASSED
------
Checking pixel @(3, 1) PASSED
------
Checking pixel @(4, 1) PASSED
------
"""
original = create_image(5, 2)
set_color(original, 0, 0, create_color(0, 0, 0))
set_color(original, 1, 0, create_color(0, 10, 1))
set_color(original, 2, 0, create_color(127, 127, 127))
set_color(original, 3, 0, create_color(125, 73, 224))
set_color(original, 4, 0, create_color(254, 255, 255))
set_color(original, 0, 1, create_color(10, 30, 3))
set_color(original, 1, 1, create_color(67, 90, 1))
set_color(original, 2, 1, create_color(0, 2, 20))
set_color(original, 3, 1, create_color(189, 53, 222))
set_color(original, 4, 1, create_color(145, 136, 198))
expected = create_image(5, 2)
set_color(expected, 0, 0, create_color(255, 255, 255))
set_color(expected, 1, 0, create_color(0, 0, 0))
set_color(expected, 2, 0, create_color(0, 0, 0))
set_color(expected, 3, 0, create_color(255, 255, 255))
set_color(expected, 4, 0, create_color(0, 0, 0))
# The last row's value stay the same do to the criterias of the edge
# detection filter.
set_color(expected, 0, 1, create_color(10, 30, 3))
set_color(expected, 1, 1, create_color(67, 90, 1))
set_color(expected, 2, 1, create_color(0, 2, 20))
set_color(expected, 3, 1, create_color(189, 53, 222))
set_color(expected, 4, 1, create_color(145, 136, 198))
# threshold is assigned 15 for this test
image_edge = detect_edges(original, 15)
for x, y, col in image_edge:
check_equal('Checking pixel @(' + str(x) + ', ' + str(y) + ')', col,
get_color(expected, x, y))