#
from ezgraphics import GraphicsImage, GraphicsWindow
filename = input("Enter the name of the image file: ")
# Load the image from the file.
image = GraphicsImage(filename)
# Process the image.
width = image.width()
height = image.height()
for row in range(height):
for col in range(width):
# Get the current pixel color.
red = image.getRed(row, col)
green = image.getGreen(row, col)
blue = image.getBlue(row, col)
# Filter the pixel.
newRed = 255 - red
newGreen = 255 - green
newBlue = 255 - blue
# Set the pixel to the new color.
image.setPixel(row, col, newRed, newGreen, newBlue)
# Display the image on screen.
win = GraphicsWindow()
canvas = win.canvas()
canvas.drawImage(image)
else:
HEIGHT = picture.height()
WIDTH = picture.width()
#Find middle point
HeightRow = HEIGHT // 2
WidthCol = WIDTH // 2
newimage = GraphicsImage(WIDTH, HEIGHT)
#For future use
#To do : make a square pic
'''
Main function
'''
print("Processing Images....Please Wait...")
#Find pixel
for row in range(HEIGHT):
for col in range(WIDTH):
if sqrt((row - HeightRow)**2 + (col - WidthCol)**2) <= HEIGHT // 2:
red = round(picture.getRed(row, col) * 0.2126)
green = round(picture.getGreen(row, col) * 0.07152)
blue = round(picture.getGreen(row, col) * 0.0722)
gray = red + green + blue
newimage.setPixel(row, col, gray, gray, gray)
else:
newimage.setPixel(row, col, 255, 255, 255)
newimage.save(os.path.join(
__location__, 'queen-mary_lab3.gif')) #Change if you want another pic
print("Done")
print("Output image has been put into same folder name:'queen-mary_lab3.gif'")
else:
radius = width // 2
#set up the effect color to white(255,255,255)
newRed = 255
newBlue = 255
newGreen = 255
# newRow is row number of new image
newRow = 0
for row in range(height): #go through every row
# outer loop is top-down
for col in range(width): #go through column
#inner loop is left-to-right
newCol = col
if sqrt((width / 2 - col)**2 + (height / 2 - row)**2) <= radius:
green = int(0.7152 * origImage.getGreen(row, col))
red = int(0.2126 * origImage.getRed(row, col))
blue = int(0.0722 * origImage.getBlue(row, col))
gray = green + red + blue
newImage.setPixel(newRow, newCol, gray, gray,
gray) #paste to new image
else:
newImage.setPixel(newRow, newCol, newRed, newGreen,
newBlue) # paste to new image
newRow = newRow + 1
# Save the new image with "Black".
newImage.save("black-" + filename)
# Draw the telescoped image
win = GraphicsWindow()
canvas = win.canvas()
canvas.drawImage(newImage)
win = GraphicsWindow()
canvas = win.canvas()
imageWidth = origImage.width()
imageHeight = origImage.height()
# define new image dimensions
newImage = GraphicsImage(imageWidth, imageHeight)
# output the size of image
print(imageWidth)
print(imageHeight)
# edit the image
for row in range(imageHeight):
for col in range(imageWidth):
red = origImage.getRed(row, col)
newRed = int(red * 1.3)
# if the red exceed the RGB range, it will set to the maximum
if newRed > 255:
newRed = 255
green = origImage.getGreen(row, col)
blue = origImage.getBlue(row, col)
# set the colors of the image
newImage.setPixel(row, col, newRed, green, blue)
# display image
canvas.drawImage(origImage)
canvas.drawImage(newImage)
win.wait()
# output image file