def turnhalftone(path, sample, scale, cyan=5):
sample = int(sample)
scale = int(scale)
h = halftone.Halftone(path)
h.make(angles=[24, 75, 0, 45],
antialias=False,
filename_addition='_halftone',
percentage=50,
sample=sample,
scale=scale,
style='grayscale')
def main():
img = cv2.imread('Lenna.jpg', 3)
print(img.shape)
img = tr.RGB2YCBCR(img)
Y, Cr, Cb = cv2.split(img)
pathlib.Path('./SecondAttempt').mkdir(parents=True, exist_ok=True)
(Sl, (Sh1, Sv1, Sd1), (Sh2, Sv2, Sd2)) = pywt.wavedec2(Y, 'db1', level=2)
ReducedCb = downscale_local_mean(Cb, (2, 2))
ReducedCr = downscale_local_mean(Cr, (2, 2))
CbPlus = ReducedCb
CbMinus = ReducedCb
for i in range(0, ReducedCb.shape[0]):
for j in range(0, ReducedCb.shape[1]):
if ReducedCb[i, j] < 0:
CbPlus[i, j] = 0
elif ReducedCb[i, j] > 0:
CbMinus[i, j] = 0
CrPlus = ReducedCr
CrMinus = ReducedCr
for i in range(0, ReducedCr.shape[0]):
for j in range(0, ReducedCr.shape[1]):
if ReducedCr[i, j] < 0:
CrPlus[i, j] = 0
elif ReducedCb[i, j] > 0:
CrMinus[i, j] = 0
ReducedCbMinus = downscale_local_mean(CbMinus, (2, 2))
# Sd1 = ReducedCbMinus
# Sh2 = CrPlus
# Sv2 = CbPlus
# Sd2 = CrMinus
NewYSecondTry = pywt.waverec2(
(Sl, (Sh1, Sv1, ReducedCbMinus), (CrPlus, CbPlus, CrMinus)), 'db1')
cv2.imwrite("./SecondAttempt/NewYSecondTry.jpg", NewYSecondTry)
cv2.waitKey(0)
cv2.destroyAllWindows()
h = hf.Halftone('./SecondAttempt/NewYSecondTry.jpg')
h.make(angles=[0, 15, 30, 45],
antialias=True,
percentage=10,
sample=1,
scale=2,
style='grayscale')
def main(palette, width, height, social, text, search):
palettes = {
'classic': {
'colorstr': '#000000',
'txtcolor': (255, 255, 255)
},
'white': {
'colorstr': '#ffffff',
'txtcolor': (0, 0, 0)
},
'barbara': {
'colorstr': '#e34234',
'txtcolor': (255, 255, 255)
},
'town': {
'colorstr': '#e0B0ff',
'txtcolor': (0, 0, 0)
},
}
pic = None
while not pic:
try:
pic, word = get_image(width, height, search)
except Exception as e:
print(e)
continue
if text:
word = text.upper()
else:
word = word.upper()
if palette:
color = palettes[palette]
else:
color = palettes[random.choice(list(palettes.keys()))]
if height <= width:
b_width = height // 40
f_margin = width // 8
elif width < height:
b_width = width // 40
f_margin = height // 8
b_double = b_width * 2
h = halftone.Halftone('fimage.jpg')
h.make(style='grayscale', angles=[random.randrange(360)])
pic = Image.open('fimage_halftoned.jpg')
pic = pic.filter(ImageFilter.DETAIL)
pic = pic.filter(ImageFilter.SHARPEN)
pic = select_section(pic, width, height, b_width)
border = Image.new('RGB', (width, height), color=color['colorstr'])
border.paste(pic, (b_width, b_width))
pic = border
font = get_font_size(word, width, height, f_margin)
x, y = font.getsize_multiline(word)
inset = Image.new('RGB', (x + b_double, y + b_double),
color=color['colorstr'])
draw = ImageDraw.Draw(inset)
draw.text((b_width, b_width), word, color['txtcolor'], font=font)
pic.paste(inset,
((width - (x + b_double)) // 2, (height - (y + b_double)) // 2))
pic.save('output.png')
if social:
try:
post_to_mastodon('output.png', word)
except Exception as e:
print(e)
try:
post_to_twitter('output.png', word)
except Exception as e:
print(e)
cleanup()
def testOthers(self):
h = halftone.Halftone('1.jpg')
h.make(style='color', filename_add='4', percentage=100, antialias=True)
h.make(style='color', filename_add='5', percentage=0, antialias=True)
def testhalftone_gray(self):
h = halftone.Halftone('1.jpg')
h.make(style='grayscale', filename_add='1')
import cv2
from encrypt import encrypt
import halftone
def resize(img, shape):
return cv2.resize(img, (shape[1], shape[0]))
secret_path = 'secret_image/top_secret.jpg'
secrethalftone_path = 'secret_image/top_secret_halftoned.jpg'
share1_path = 'share1.jpg'
share2_path = 'share2.jpg'
secret = cv2.imread(secret_path, 0)
secret = resize(secret, (400, 600))
share1 = cv2.imread(share1_path, 0)
share1 = resize(share1, (400, 600))
share2 = cv2.imread(share2_path, 0)
share2 = resize(share2, (400, 600))
cv2.imwrite(secret_path, secret)
h = halftone.Halftone(secret_path)
h.make(sample=2, scale=5)
# main
secret = cv2.imread(secrethalftone_path, 0)
encrypt(secret, share1, share2)