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Teaser/decode.py

@@ -25,23 +25,31 @@ im.crop((offsetX, offsetY, offsetX+imageSize, offsetY+imageSize)).save("data2.pn
 # rushed by ...
 
 # HACKvent 2018
+# pdf file name: ZOoxjUSe1OVB7OPoVrsX
 # .... ...- .---- ---.. -....- --. --- .-. .. -....- --.. .-. ... -... -....- ..- ..-. .- . -....- - ... -.... -.-. -....- -.-. ...- - -
 # Morse code: HV18-GORI-ZRSB-UFAE-TS6C-CVTT
 im = Image.open('pdf_data.png')
 pix = im.load()
 size = im.size
 
-# pixels = []
-#
-# for x in range(size[0]):
-#     for y in range(size[1]):
-#
-#         if pix[x,y] not in pixels:
-#             pixels.append(pix[x,y])
-#
-#         r = 255 - pix[x,y][0]
-#         g = 255 - pix[x,y][1]
-#         b = 255 - pix[x,y][2]
-#         pix[x,y] = (r,g,b,255)
+# Count Pixel types
+pixels = []
+for x in range(size[0]):
+    for y in range(size[1]):
 
-# im.save('pdf_data_decrypted.png')
+        p = pix[x,y]
+        if p not in pixels:
+            pixels.append(p)
+
+print(pixels)
+
+# Filter
+# for p in pixels:
+#     im = Image.open('pdf_data.png')
+#     pix = im.load()
+#     for x in range(size[0]):
+#         for y in range(size[1]):
+#             if p != pix[x,y]:
+#                 pix[x,y] = (255,255,255,255)
+#
+#     im.save('pdf_data_decrypted_%d-%d-%d.png' % (p[0], p[1], p[2]))