def flipHoriz(canvas):
n = Picture((canvas.getWidth(),canvas.getHeight()))
for x in range(canvas.getWidth()):
for y in range(canvas.getHeight()):
r, g, b = canvas.getPixelColor(x,y)
n.setPixelColor(canvas.getWidth()-x-1,y,r,g,b)
canvas.close()
n.display()
return n
def scrollHoriz(canvas) :
m = eval(input("Scroll by how many pixels: "))
n = Picture((canvas.getWidth(),canvas.getHeight()))
for x in range(canvas.getWidth()):
for y in range(canvas.getHeight()):
r, g, b = canvas.getPixelColor(x,y)
n.setPixelColor((x+m)%canvas.getWidth(),y,r,g,b)
canvas.close()
n.display()
return n
def rotate180(canvas) :
w, h = canvas.getWidth(), canvas.getHeight()
n = Picture((w,h))
for x in range(w):
for y in range(h):
r, g, b = canvas.getPixelColor(x,y)
n.setPixelColor(w-x-1,h-y-1,r,g,b)
canvas.close()
n.display()
return n
def blur(canvas) :
w, h = canvas.getWidth(), canvas.getHeight()
n = Picture((w,h))
for x in range(w):
for y in range(h):
r, g, b = getAdjAvg(canvas,x,y)
n.setPixelColor(x,y,r,g,b)
canvas.close()
n.display()
return canvas
def rotate180(canvas):
w = canvas.getWidth()
h = canvas.getHeight()
new_canvas = Picture((w,h))
canvas.close()
for i in range(0,w):
for j in range(0,h):
r = canvas.getPixelRed(w-1-i,h-1-j)
g = canvas.getPixelGreen(w-1-i,h-1-j)
b = canvas.getPixelBlue(w-1-i,h-1-j)
new_canvas.setPixelColor(i,j,r,g,b)
return new_canvas
def zoom(canvas):
w = canvas.getWidth()
h = canvas.getHeight()
new_canvas = Picture((w,h))
canvas.close()
for i in range(0,w):
for j in range(0,h):
r = canvas.getPixelRed(w//4+i//2,h//4+j//2)
g = canvas.getPixelGreen(w//4+i//2,h//4+j//2)
b = canvas.getPixelBlue(w//4+i//2,h//4+j//2)
new_canvas.setPixelColor(i,j,r,g,b)
return new_canvas
def scrollHorizontally(canvas):
n = eval(input("How many pixels would you like to scroll? "))
w = canvas.getWidth()
h = canvas.getHeight()
new_canvas = Picture((w,h))
canvas.close()
for i in range(0,w):
for j in range(0,h):
r = canvas.getPixelRed(i,j)
g = canvas.getPixelGreen(i,j)
b = canvas.getPixelBlue(i,j)
new_canvas.setPixelColor((i+n)%w,j,r,g,b)
return new_canvas
def flipHorizontally(canvas):
w = canvas.getWidth()
h = canvas.getHeight()
new_canvas = Picture((w,h))
canvas.close()
for i in range(0,w):
for j in range(0,h):
r = canvas.getPixelRed(w-1-i,j)
g = canvas.getPixelGreen(w-1-i,j)
b = canvas.getPixelBlue(w-1-i,j)
new_canvas.setPixelColor(i,j,r,g,b)
for i in range(0,w):
for j in range(0,h):
r = new_canvas.getPixelRed(i,j)
g = new_canvas.getPixelGreen(i,j)
b = new_canvas.getPixelBlue(i,j)
canvas.setPixelColor(i,j,r,g,b)
return canvas
def zoom(canvas) :
w, h = canvas.getWidth(), canvas.getHeight()
n = Picture((w,h))
for x in range(w//4,w-(w//4)):
for y in range(h//4,h-(h//4)):
r, g, b = canvas.getPixelColor(x,y)
c,d = x-(w//4),y-(h//4)
n.setPixelColor(c*2,d*2,r,g,b)
n.setPixelColor((c*2)+1,d*2,r,g,b)
n.setPixelColor(c*2,(d*2)+1,r,g,b)
n.setPixelColor((c*2)+1,(d*2)+1,r,g,b)
canvas.close()
n.display()
return n
def tiled(canvas) :
w, h = canvas.getWidth(), canvas.getHeight()
n = Picture((w,h))
for x in range(0,w,3):
for y in range(0,h,3):
r, g, b = canvas.getPixelColor(x,y)
#first row
n.setPixelColor(x//3,y//3,r,g,b)
n.setPixelColor(x//3 + w//3,y//3,r,g,b)
n.setPixelColor(x//3 + 2*(w//3),y//3,r,g,b)
#second
n.setPixelColor(x//3,y//3 + h//3,r,g,b)
n.setPixelColor(x//3 + w//3,y//3 + h//3,r,g,b)
n.setPixelColor(x//3 + 2*(w//3),y//3 + h//3,r,g,b)
#third row
n.setPixelColor(x//3,y//3 + 2*(h//3),r,g,b)
n.setPixelColor(x//3 + w//3,y//3 + 2*(h//3),r,g,b)
n.setPixelColor(x//3 + 2*(w//3),y//3 + 2*(h//3),r,g,b)
canvas.close()
n.display()
return n
def blur(canvas):
w = canvas.getWidth()
h = canvas.getHeight()
new_canvas = Picture((w,h))
canvas.close()
#dealing with the corners
r = (canvas.getPixelRed(0,0)+canvas.getPixelRed(1,0)+canvas.getPixelRed(0,1)+canvas.getPixelRed(1,1))//4
g = (canvas.getPixelGreen(0,0)+canvas.getPixelGreen(1,0)+canvas.getPixelGreen(0,1)+canvas.getPixelGreen(1,1))//4
b = (canvas.getPixelBlue(0,0)+canvas.getPixelBlue(1,0)+canvas.getPixelBlue(0,1)+canvas.getPixelBlue(1,1))//4
new_canvas.setPixelColor(0,0,r,g,b)
r = (canvas.getPixelRed(w-1,0)+canvas.getPixelRed(w-2,0)+canvas.getPixelRed(w-1,1)+canvas.getPixelRed(w-2,1))//4
g = (canvas.getPixelGreen(w-1,0)+canvas.getPixelGreen(w-2,0)+canvas.getPixelGreen(w-1,1)+canvas.getPixelGreen(w-2,1))//4
b = (canvas.getPixelBlue(w-1,0)+canvas.getPixelBlue(w-2,0)+canvas.getPixelBlue(w-1,1)+canvas.getPixelBlue(w-2,1))//4
new_canvas.setPixelColor(w-1,0,r,g,b)
r = (canvas.getPixelRed(w-1,h-1)+canvas.getPixelRed(w-2,h-1)+canvas.getPixelRed(w-1,h-2)+canvas.getPixelRed(w-2,h-2))//4
g = (canvas.getPixelGreen(w-1,h-1)+canvas.getPixelGreen(w-2,h-1)+canvas.getPixelGreen(w-1,h-2)+canvas.getPixelGreen(w-2,h-2))//4
b = (canvas.getPixelBlue(w-1,h-1)+canvas.getPixelBlue(w-2,h-1)+canvas.getPixelBlue(w-1,h-2)+canvas.getPixelBlue(w-2,h-2))//4
new_canvas.setPixelColor(w-1,h-1,r,g,b)
r = (canvas.getPixelRed(0,h-1)+canvas.getPixelRed(1,h-1)+canvas.getPixelRed(0,h-2)+canvas.getPixelRed(1,h-2))//4
g = (canvas.getPixelGreen(0,h-1)+canvas.getPixelGreen(1,h-1)+canvas.getPixelGreen(0,h-2)+canvas.getPixelGreen(1,h-2))//4
b = (canvas.getPixelBlue(0,h-1)+canvas.getPixelBlue(1,h-1)+canvas.getPixelBlue(0,h-2)+canvas.getPixelBlue(1,h-2))//4
new_canvas.setPixelColor(0,h-1,r,g,b)
#top row
for i in range(1,w-1):
r = (canvas.getPixelRed(i,0)+canvas.getPixelRed(i-1,0)+canvas.getPixelRed(i+1,0)+canvas.getPixelRed(i,1)+canvas.getPixelRed(i-1,1)+canvas.getPixelRed(i+1,1))//6
g = (canvas.getPixelGreen(i,0)+canvas.getPixelGreen(i-1,0)+canvas.getPixelGreen(i+1,0)+canvas.getPixelGreen(i,1)+canvas.getPixelGreen(i-1,1)+canvas.getPixelGreen(i+1,1))//6
b = (canvas.getPixelBlue(i,0)+canvas.getPixelBlue(i-1,0)+canvas.getPixelBlue(i+1,0)+canvas.getPixelBlue(i,1)+canvas.getPixelBlue(i-1,1)+canvas.getPixelBlue(i+1,1))//6
new_canvas.setPixelColor(i,0,r,g,b)
#bottom row
for i in range(1,w-1):
r = (canvas.getPixelRed(i,h-1)+canvas.getPixelRed(i-1,h-1)+canvas.getPixelRed(i+1,h-1)+canvas.getPixelRed(i,h-2)+canvas.getPixelRed(i-1,h-2)+canvas.getPixelRed(i+1,h-2))//6
g = (canvas.getPixelGreen(i,h-1)+canvas.getPixelGreen(i-1,h-1)+canvas.getPixelGreen(i+1,h-1)+canvas.getPixelGreen(i,h-2)+canvas.getPixelGreen(i-1,h-2)+canvas.getPixelGreen(i+1,h-2))//6
b = (canvas.getPixelBlue(i,h-1)+canvas.getPixelBlue(i-1,h-1)+canvas.getPixelBlue(i+1,h-1)+canvas.getPixelBlue(i,h-2)+canvas.getPixelBlue(i-1,h-2)+canvas.getPixelBlue(i+1,h-2))//6
new_canvas.setPixelColor(i,h-1,r,g,b)
#left most column
for i in range(1,h-1):
r = (canvas.getPixelRed(0,i)+canvas.getPixelRed(0,i-1)+canvas.getPixelRed(0,i+1)+canvas.getPixelRed(1,i)+canvas.getPixelRed(1,i-1)+canvas.getPixelRed(1,i+1))//6
g = (canvas.getPixelGreen(0,i)+canvas.getPixelGreen(0,i-1)+canvas.getPixelGreen(0,i+1)+canvas.getPixelGreen(1,i)+canvas.getPixelGreen(1,i-1)+canvas.getPixelGreen(1,i+1))//6
b = (canvas.getPixelBlue(0,i)+canvas.getPixelBlue(0,i-1)+canvas.getPixelBlue(0,i+1)+canvas.getPixelBlue(1,i)+canvas.getPixelBlue(1,i-1)+canvas.getPixelBlue(1,i+1))//6
new_canvas.setPixelColor(0,i,r,g,b)
#right most column
for i in range(1,h-1):
r = (canvas.getPixelRed(w-1,i)+canvas.getPixelRed(w-1,i-1)+canvas.getPixelRed(w-1,i+1)+canvas.getPixelRed(w-2,i)+canvas.getPixelRed(w-2,i-1)+canvas.getPixelRed(w-2,i+1))//6
g = (canvas.getPixelGreen(w-1,i)+canvas.getPixelGreen(w-1,i-1)+canvas.getPixelGreen(w-1,i+1)+canvas.getPixelGreen(w-2,i)+canvas.getPixelGreen(w-2,i-1)+canvas.getPixelGreen(w-2,i+1))//6
b = (canvas.getPixelBlue(w-1,i)+canvas.getPixelBlue(w-1,i-1)+canvas.getPixelBlue(w-1,i+1)+canvas.getPixelBlue(w-2,i)+canvas.getPixelBlue(w-2,i-1)+canvas.getPixelBlue(w-2,i+1))//6
new_canvas.setPixelColor(w-1,i,r,g,b)
#The middle (finally)
for i in range(1,w-1):
for j in range(1,h-1):
r = (canvas.getPixelRed(i-1,j-1)+canvas.getPixelRed(i-1,j)+canvas.getPixelRed(i-1,j+1)+canvas.getPixelRed(i,j-1)+canvas.getPixelRed(i,j)+canvas.getPixelRed(i,j+1)+canvas.getPixelRed(i+1,j-1)+canvas.getPixelRed(i+1,j)+canvas.getPixelRed(i+1,j+1))//9
g = (canvas.getPixelGreen(i-1,j-1)+canvas.getPixelGreen(i-1,j)+canvas.getPixelGreen(i-1,j+1)+canvas.getPixelGreen(i,j-1)+canvas.getPixelGreen(i,j)+canvas.getPixelGreen(i,j+1)+canvas.getPixelGreen(i+1,j-1)+canvas.getPixelGreen(i+1,j)+canvas.getPixelGreen(i+1,j+1))//9
b = (canvas.getPixelBlue(i-1,j-1)+canvas.getPixelBlue(i-1,j)+canvas.getPixelBlue(i-1,j+1)+canvas.getPixelBlue(i,j-1)+canvas.getPixelBlue(i,j)+canvas.getPixelBlue(i,j+1)+canvas.getPixelBlue(i+1,j-1)+canvas.getPixelBlue(i+1,j)+canvas.getPixelBlue(i+1,j+1))//9
new_canvas.setPixelColor(i,j,r,g,b)
return new_canvas
