diff --git a/La machine temporelle à rotations.py b/La machine temporelle à rotations.py
new file mode 100644
index 0000000..0130223
--- /dev/null
+++ b/La machine temporelle à rotations.py	
@@ -0,0 +1,122 @@
+from PIL import Image
+
+#exemple input = "carre_base_encode.png"
+input = "tentacle_image_encode_4.png"
+
+imagette1_noir = [
+    [
+        [0,255,0,0],
+        [0,255,255,255],
+        [255,255,255,0],
+        [0,0,255,0],
+    ],
+    [
+        [0,255,255,255],
+        [255,255,255,0],
+        [0,0,255,0],
+        [0,255,0,0],
+    ],
+    [
+        [255,255,255,0],
+        [0,0,255,0],
+        [0,255,0,0],
+        [0,255,255,255],
+    ],
+    [
+        [0,0,255,0],
+        [0,255,0,0],
+        [0,255,255,255],
+        [255,255,255,0],
+    ],
+    [
+        [255,0,0,0],
+        [255,255,255,0],
+        [255,255,0,255],
+        [0,255,0,0],
+    ],
+    [
+        [0,0,0,255],
+        [255,255,0,255],
+        [255,0,255,255],
+        [255,0,0,0],
+    ],
+    [
+        [0,0,255,0],
+        [255,0,255,255],
+        [0,255,255,255],
+        [0,0,0,255],
+    ],
+]
+imagette2_noir = [
+    [
+        [0,0,255,0],
+        [255,255,255,0],
+        [0,255,255,255],
+        [0,255,0,0],
+    ],
+    [
+        [255,255,255,0],
+        [0,255,255,255],
+        [0,255,0,0],
+        [0,0,255,0],
+    ],
+    [
+        [0,255,255,255],
+        [0,255,0,0],
+        [0,0,255,0],
+        [255,255,255,0],
+    ],
+    [
+        [0,255,0,0],
+        [0,0,255,0],
+        [255,255,255,0],
+        [0,255,255,255],
+    ],
+    [
+        [0,255,0,0],
+        [255,255,0,255],
+        [255,255,255,0],
+        [255,0,0,0],
+    ],
+    [
+        [255,0,0,0],
+        [255,0,255,255],
+        [255,255,0,255],
+        [0,0,0,255],
+    ],
+    [
+        [0,0,0,255],
+        [0,255,255,255],
+        [255,0,255,255],
+        [0,0,255,255],
+    ],
+]
+
+noir = imagette1_noir + imagette2_noir
+
+input_image = Image.open(input)
+width, height = input_image.size
+
+output_image = Image.new(input_image.mode, (int(width)//4, int(height)//4))
+
+for x in range(0, width, 4):
+    for y in range(0, height, 4):
+        if x == 4 and y == 4:
+            z=1
+        imagette = [
+            [input_image.getpixel((x, y)), input_image.getpixel((x+1, y)), input_image.getpixel((x+2, y)), input_image.getpixel((x+3, y))],
+            [input_image.getpixel((x, y+1)), input_image.getpixel((x+1, y+1)), input_image.getpixel((x+2, y+1)), input_image.getpixel((x+3, y+1))],
+            [input_image.getpixel((x, y+2)), input_image.getpixel((x+1, y+2)), input_image.getpixel((x+2, y+2)), input_image.getpixel((x+3, y+2))],
+            [input_image.getpixel((x, y+3)), input_image.getpixel((x+1, y+3)), input_image.getpixel((x+2, y+3)), input_image.getpixel((x+3, y+3))],
+        ]
+
+        if imagette in noir:
+            output_image.putpixel((x//4, y//4), 0)
+            # print("NOIR", imagette)
+        else:
+            output_image.putpixel((x//4, y//4), 1)
+            # print("BLANC", imagette)
+
+output_image.show()
+
+"Tux", "Gnu", "Beastie", "Adiumy"
\ No newline at end of file
diff --git a/Les écailles du dragon....py b/Les écailles du dragon....py
new file mode 100644
index 0000000..1dc8ef3
--- /dev/null
+++ b/Les écailles du dragon....py	
@@ -0,0 +1,36 @@
+from PIL import Image
+from operator import xor
+
+input = "dungeons_portal_enc.png"
+
+input_image = Image.open(input)
+width, height = input_image.size
+
+sample_size = 50
+offset = 400
+# output_image = Image.new(input_image.mode, (int(sample_size), int(sample_size)))
+# for N in range(0,256):
+#     for x in range(offset, offset+sample_size):
+#         for y in range(offset, offset+sample_size):
+#             pixel = input_image.getpixel((x,y))
+#             if xor((x**3+y**7)%256, N)%256 == pixel:
+#                 output_image.putpixel((x-offset,y-offset), 0)
+#             else:
+#                 output_image.putpixel((x-offset,y-offset), 255)
+
+#    output_image.save(f"d_{N:04}.png")
+
+#==>N semble valoir 7
+
+N = 7
+output_image = Image.new(input_image.mode, (int(width), int(height)))
+
+for x in range(width):
+    for y in range(height):
+        pixel = input_image.getpixel((x,y))
+        if xor((x**3+y**7)%256, N)%256 == pixel:
+            output_image.putpixel((x,y), 0)
+        else:
+            output_image.putpixel((x,y), 255)
+
+output_image.show()
diff --git a/carre_base_encode.png b/carre_base_encode.png
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diff --git a/dungeons_portal_enc.png b/dungeons_portal_enc.png
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index 0000000..bce8478
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diff --git a/tentacle_image_encode_4.png b/tentacle_image_encode_4.png
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index 0000000..11779c0
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