def create_array_mask():
font = ImageFont.truetype("game_over.ttf", 100)
mask = font.getmask("PyPy Rocks!")
msk_x, msk_y = mask.size
arraymask = Image(msk_x, msk_y, typecode='B')
for x in range(msk_x):
for y in range(msk_y):
arraymask[x, y] = mask.getpixel((x, y))
return arraymask
def sobel(self, horizontal=True, vertical=True):
out = Image(self.width, self.height)
for y in range(1, self.height - 1):
for x in range(1, self.width - 1):
if horizontal:
dx = -1.0 * self[x - 1, y - 1] + 1.0 * self[x + 1, y - 1] + \
-2.0 * self[x - 1, y] + 2.0 * self[x + 1, y] + \
-1.0 * self[x - 1, y + 1] + 1.0 * self[x + 1, y + 1]
else:
dx = self[x, y]
if vertical:
dy = -1.0 * self[x - 1, y - 1] - 2.0 * self[x, y - 1] - 1.0 * self[x + 1, y - 1] + \
1.0 * self[x - 1, y + 1] + 2.0 * self[x, y + 1] + 1.0 * self[x + 1, y + 1]
else:
dy = self[x, y]
out[x, y] = min(int(sqrt(dx * dx + dy * dy) / 4.0), 255)
return out
def magnify(img):
out = Image(img.width, img.height, typecode='B')
out.data[:] = img.data
maxr = img.height / 3
for y in xrange(img.height / 2 - maxr, img.height / 2 + maxr):
for x in xrange(img.width / 2 - maxr, img.width / 2 + maxr):
dx, dy = x - img.width / 2, y - img.height / 2
a = atan2(dy, dx)
r = sqrt(dx**2 + dy**2)
if r < maxr:
nr = r * r / maxr
nx, ny = nr * cos(a), nr * sin(a)
out[x,
y] = min(int(img[nx + img.width / 2, ny + img.height / 2]),
255)
else:
out[x, y] = img[x, y]
return out
def mplayer(Image, fn='tv://', options=''):
f = subprocess.Popen(
'mplayer -really-quiet -noframedrop ' + options + ' '
'-vo yuv4mpeg:file=/dev/stdout 2>/dev/null </dev/null ' + fn,
universal_newlines=False,
shell=True,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
).stdout
hdr = f.readline()
m = re.search('W(\d+) H(\d+)', str(hdr))
w, h = int(m.group(1)), int(m.group(2))
while True:
hdr = f.readline()
if hdr != b'FRAME\n':
break
data = array('B')
data.fromfile(f, w * h)
yield Image(w, h, data=list(data))
f.read(w * h // 2) # Color data
def fisheye(img, fraction=2, bilinear=False):
if bilinear:
img = BilinImage(img.width, img.height, data=img.data)
else:
img = NNImage(img.width, img.height, data=img.data)
out = Image(img.width, img.height, data=img.data[:])
maxr = img.height / (fraction + 1)
for y in range(int(img.height / 2 - maxr), int(img.height / 2 + maxr)):
for x in range(int(img.width / 2 - maxr),
int(img.width / 2 + maxr)):
dx, dy = x - img.width / 2, y - img.height / 2
a = atan2(dy, dx)
r = sqrt(dx**2 + dy**2)
if r < maxr:
nr = r * r / maxr
nx, ny = nr * cos(a), nr * sin(a)
out[x, y] = min(
int(img[nx + img.width / 2, ny + img.height / 2]), 255)
else:
out[x, y] = img[x, y]
return out
y0, y1 = int(floor(y)), int(ceil(y))
xoff, yoff = x - x0, y - y0
return (1.0 - xoff) * (1.0 - yoff) * self[x0, y0] + \
(1.0 - xoff) * ( yoff) * self[x0, y1] + \
( xoff) * (1.0 - yoff) * self[x1, y0] + \
( xoff) * ( yoff) * self[x1, y1]
else:
return Image.__getitem__(self, (x, y))
if __name__ == '__main__':
import sys
if sys.implementation.name == "graalpython" or "test" in sys.argv:
img = Image(5,
5,
data=([11, 12, 13, 14, 15] + [21, 22, 23, 24, 25] +
[31, 32, 33, 34, 35] + [41, 42, 43, 44, 45] +
[51, 52, 53, 54, 55]))
print(img.sobel().data)
print(img.fisheye().data)
print(img.fisheye(bilinear=True).data)
else:
import re, subprocess
from time import time
def mplayer(Image, fn='tv://', options=''):
f = subprocess.Popen(
'mplayer -really-quiet -noframedrop ' + options + ' '
'-vo yuv4mpeg:file=/dev/stdout 2>/dev/null </dev/null ' + fn,
universal_newlines=False,
shell=True,