Init commit

FFC.py

@@ -0,0 +1,91 @@
+from PIL import Image, ImageDraw  # Подключим необходимые библиотеки.
+
+
+def write(ifile, ofile, text):
+    secret = ''
+
+    for char in text:
+        ccode = str(bin(ord(char)))[2:]
+        while len(ccode) < 16:
+            ccode = '0' + ccode
+        secret += ccode
+    secret += '0000000000000000'
+
+    image = Image.open(ifile)
+    draw = ImageDraw.Draw(image)
+    width, height = image.size
+    pix = image.load()
+
+    dindex = 0
+
+    for w in range(width):
+        for h in range(height):
+
+            red = pix[w, h][0]
+            green = pix[w, h][1]
+            blue = pix[w, h][2]
+
+            try:
+                if blue % 2 != int(secret[dindex]):
+                    blue += 1
+                    if blue > 255:
+                        blue -= 2
+                dindex += 1
+            except IndexError:
+                if blue % 2 != 0:
+                    blue += 1
+                    if blue > 255:
+                        blue -= 2
+
+            draw.point((w, h), (red, green, blue))
+    fformat = 'PNG'
+
+    if ofile[-3].endswith('png'):
+        fformat = 'PNG'
+    elif ofile[-3].endswith('jpg'):
+        fformat = 'JPEG'
+
+    image.save(ofile, fformat)
+
+
+
+def read(file):
+    image = Image.open(file)
+    width = image.size[0]
+    height = image.size[1]
+    pix = image.load()
+
+    solve = ''
+    out = ''
+
+    for w in range(width):
+        for h in range(height):
+            blue = pix[w, h][2]
+            solve += str(blue % 2)
+
+    solve = list(solve)
+
+    i = 0
+    while len(solve) >= 16:
+        char = ''.join(solve[:16])
+        char = int(char, 2)
+        if char == 0:
+            break
+        out += chr(char)
+
+        del solve[:16]
+
+        i += 1
+
+    return out
+
+
+if __name__ == '__main__':
+    choose = input('Прочесть или записать? [r/w] ')
+
+    if choose == 'w':
+        text = input('Введи текст для зашифроки: ')
+        write('unknown.png', 'secret.png', text)
+
+    elif choose == 'r':
+        print(read('secret.png'))