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image-compression
Commit a51a255b authored by Bryce Hepner's avatar Bryce Hepner
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changed more names

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Showing with 22 additions and 20 deletions
Encoding_decoding.ipynb
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...@@ -154,7 +154,7 @@ ...@@ -154,7 +154,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 4, "execution_count": 41,
"id": "6b965751", "id": "6b965751",
"metadata": {}, "metadata": {},
"outputs": [], "outputs": [],
...@@ -173,7 +173,7 @@ ...@@ -173,7 +173,7 @@
" return self.left, self.right\n", " return self.left, self.right\n",
"\n", "\n",
" def __str__(self):\n", " def __str__(self):\n",
" return self.left, self.right\n", " return str(self.left) + str(self.right)\n",
"\n", "\n",
"\n", "\n",
"def huffman_code_tree(node, binString=''):\n", "def huffman_code_tree(node, binString=''):\n",
...@@ -201,13 +201,14 @@ ...@@ -201,13 +201,14 @@
" nodes = nodes[:-2]\n", " nodes = nodes[:-2]\n",
" node = NodeTree(key1, key2)\n", " node = NodeTree(key1, key2)\n",
" nodes.append((node, c1 + c2))\n", " nodes.append((node, c1 + c2))\n",
" nodes = sorted(nodes, key=lambda x: x[1], reverse=True)\n", " #reverse True, decending order\n",
" return nodes[0][0]" " sorted_nodes = sorted(nodes, key=lambda x: x[1], reverse=True)\n",
" return sorted_nodes[0][0]"
] ]
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 10, "execution_count": 42,
"id": "b7561883", "id": "b7561883",
"metadata": {}, "metadata": {},
"outputs": [], "outputs": [],
...@@ -250,8 +251,8 @@ ...@@ -250,8 +251,8 @@
" boundary[0] = image_array[0,0]\n", " boundary[0] = image_array[0,0]\n",
" \n", " \n",
" # huffman encode the boundary\n", " # huffman encode the boundary\n",
" string = [str(i) for i in boundary]\n", " bound_vals_as_string = [str(i) for i in boundary]\n",
" freq = dict(Counter(string))\n", " freq = dict(Counter(bound_vals_as_string))\n",
" freq = sorted(freq.items(), key=lambda x: x[1], reverse=True)\n", " freq = sorted(freq.items(), key=lambda x: x[1], reverse=True)\n",
" node = make_tree(freq)\n", " node = make_tree(freq)\n",
" encode = huffman_code_tree(node)\n", " encode = huffman_code_tree(node)\n",
...@@ -266,8 +267,8 @@ ...@@ -266,8 +267,8 @@
" if i == 0 :\n", " if i == 0 :\n",
" # get the point within the bin and huffman encode\n", " # get the point within the bin and huffman encode\n",
" mask = diff <= bins[i]\n", " mask = diff <= bins[i]\n",
" string = [str(i) for i in error[mask].astype(int)]\n", " line_as_string = [str(i) for i in error[mask].astype(int)]\n",
" freq = dict(Counter(string))\n", " freq = dict(Counter(line_as_string))\n",
" freq = sorted(freq.items(), key=lambda x: x[1], reverse=True)\n", " freq = sorted(freq.items(), key=lambda x: x[1], reverse=True)\n",
" node = make_tree(freq)\n", " node = make_tree(freq)\n",
" encode = huffman_code_tree(node)\n", " encode = huffman_code_tree(node)\n",
...@@ -279,8 +280,8 @@ ...@@ -279,8 +280,8 @@
" mask = diff > bins[i-1]\n", " mask = diff > bins[i-1]\n",
" new_error = error[mask]\n", " new_error = error[mask]\n",
" mask2 = diff[mask] <= bins[i]\n", " mask2 = diff[mask] <= bins[i]\n",
" string = [str(i) for i in new_error[mask2].astype(int)]\n", " line_as_string = [str(i) for i in new_error[mask2].astype(int)]\n",
" freq = dict(Counter(string))\n", " freq = dict(Counter(line_as_string))\n",
" freq = sorted(freq.items(), key=lambda x: x[1], reverse=True)\n", " freq = sorted(freq.items(), key=lambda x: x[1], reverse=True)\n",
" node = make_tree(freq)\n", " node = make_tree(freq)\n",
" encode = huffman_code_tree(node)\n", " encode = huffman_code_tree(node)\n",
...@@ -289,8 +290,8 @@ ...@@ -289,8 +290,8 @@
" # the last bin \n", " # the last bin \n",
" # get the point within the bin and huffman encode\n", " # get the point within the bin and huffman encode\n",
" mask = diff > bins[-1]\n", " mask = diff > bins[-1]\n",
" string = [str(i) for i in error[mask].astype(int)]\n", " line_as_string = [str(i) for i in error[mask].astype(int)]\n",
" freq = dict(Counter(string))\n", " freq = dict(Counter(line_as_string))\n",
" freq = sorted(freq.items(), key=lambda x: x[1], reverse=True)\n", " freq = sorted(freq.items(), key=lambda x: x[1], reverse=True)\n",
" node = make_tree(freq)\n", " node = make_tree(freq)\n",
" encode = huffman_code_tree(node)\n", " encode = huffman_code_tree(node)\n",
...@@ -314,7 +315,7 @@ ...@@ -314,7 +315,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 11, "execution_count": 43,
"id": "2eb774d2", "id": "2eb774d2",
"metadata": {}, "metadata": {},
"outputs": [], "outputs": [],
...@@ -354,7 +355,7 @@ ...@@ -354,7 +355,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 12, "execution_count": 44,
"id": "8eeb40d0", "id": "8eeb40d0",
"metadata": {}, "metadata": {},
"outputs": [], "outputs": [],
...@@ -438,7 +439,7 @@ ...@@ -438,7 +439,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 13, "execution_count": 45,
"id": "f959fe93", "id": "f959fe93",
"metadata": {}, "metadata": {},
"outputs": [], "outputs": [],
...@@ -498,7 +499,7 @@ ...@@ -498,7 +499,7 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 14, "execution_count": 46,
"id": "3e0e9742", "id": "3e0e9742",
"metadata": {}, "metadata": {},
"outputs": [ "outputs": [
...@@ -506,6 +507,7 @@ ...@@ -506,6 +507,7 @@
"name": "stdout", "name": "stdout",
"output_type": "stream", "output_type": "stream",
"text": [ "text": [
"LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL-411 R-321 R-315 R-286 R-281 R-289 R-256 R-229 R-194 R-142 R-238 R-234 R-219 R-255 R-214 R-151 R-259 R-252 R-114 R-147 R-117 R-191 R-163 R-38 R-469 R-426 R-537 R-541 R-521 R-530 R-526 R-497 R-483 R-491 R-466 R-442 R-455 R-487 R-451 R-480 R-489 R-508 R-493 R-495 R-512 R-506 R-482 R-474 R-505 R-488 R-523 R-445 R-397 R-399 R-387 R-369 R-348 R-360 R-361 R-401 R-416 R-65 R148 R172 R189 R190 R209 R114 R111 R-241 R-213 R-143 R-107 R-44 R-334 R-371 R-317 R-352 R-240 R-66 R-92 R108 R120 R129 R144 R171 R166 R163 R175 R216 R196 R146 R140 R138 R150 R149 R145 R121 R112 R-27 R-77 R-75 R-251 R-294 R-356 R-279 R-290 R-193 R-167 R-274 R-354 R-389 R-454 R-380 R-370 R-305 R-326 R-407 R-398 R-372 R-362 R-414 R-424 R-452 R-383 R-324 R-331 R-381 R-346 R-420 R-409 R-453 R-450 R-460 R-449 R-458 R-42 R118 R104 R103 R22275 R-275 R-216 R-260 R-177 R-168 R-172 R-150 R-253 R-123 R-112 R-139 R-118 R-115 R-468 R-494 R-476 R-496 R-514 R-529 R-486 R-440 R-296 R-276 R-267 R-178 R-124 R-119 R-71 R-415 R-418 R-384 R-344 R-332 R-306 R-242 R-269 R-302 R-330 R-309 R-231 R-248 R-64 R-80 R-250 R-95 R126 R127 R-88 R-162 R-109 R-78 R-83 R-233 R-209 R-204 R-170 R-93 R-122 R-179 R-293 R-295 R-261 R-291 R-277 R-257 R-220 R-226 R-208 R-235 R-243 R-338 R-311 R-301 R-135 R-244 R-323 R-349 R-385 R-421 R-425 R-378 R-390 R-417 R-405 R-461 R-403 R-358 R-340 R-413 R-393 R-400 R-428 R-447 R-463 R-473 R-419 R-434 R-457 R-436 R-446 R-439 R-79 R-60 R-49 R-8 R-48 R-10 R-41 R102 R132 R96 R117 R113 R110 R115 R116 R105 R94 R-37 R-200 R-99 R-478 R-392 R-101 R-24 R-34 R-287 R-136 R-76 R-343 R-310 R-271 R-237 R-145 R-62 R-106 R182 R101 R106 R-84 R-81 R-152 R-222 R-120 R-264 R-206 R-131 R-113 R-96 R-108 R-134 R-258 R-266 R-299 R-239 R-307 R-304 R-284 R-297 R-249 R-196 R-199 R-186 R-265 R-230 R-138 R-192 R-236 R-245 R-273 R-254 R-298 R-337 R-373 R-365 R-345 R-319 R-313 R-335 R-320 R-410 R-443 R-432 R-477 R-444 R-437 R-435 R-57 R-128 R-102 R-61 R-94 R-73 R-68 R-70 R-30 R-51 R-74 R24 R91 R109 R107 R93 R-25 R-1 R-40 R-45 R-182 R-153 R-188 R-197 R-133 R-22 R-329 R-347 R-333 R-189 R-184 R-175 R-171 R-169 R-54 R-121 R-72 R-159 R-82 R-98 R-58 R-246 R-125 R-89 R-90 R-97 R-223 R-282 R-272 R-210 R-164 R-180 R-232 R-225 R-205 R-116 R-154 R-263 R-280 R-314 R-429 R-359 R-422 R-412 R-430 R-53 R-46 R-110 R-59 R-87 R-105 R47 R37 R-18 R-26 R21 R-23 R40 R124 R-47 R-33 R-14 R-56 R-39 R-28 R-16 R-31 R-100 R-85 R-140 R-165 R-155 R-104 R-176 R-312 R-268 R-198 R-195 R-174 R-221 R-146 R-217 R-247 R-308 R-318 R-341 R-325 R-408 R-406 R-55 R-36 R3 R-50 R18 R35 R14 R-32 R1 R89 R95 R100 R-21 R-3 R-43 R-149 R-351 R-173 R-91 R-207 R-157 R-127 R-160 R-218 R-212 R-148 R-203 R-224 R-215 R-126 R-202 R-339 R-355 R-7 R-67 R-69 R-63 R-86 R48 R-5 R59 R86 R76 R81 R99 R49 R-13 R-20 R-9 R-19 R13 R39 R-185 R-166 R-158 R-156 R-144 R-130 R-111 R-201 R-227 R-161 R-132 R-187 R-29 R-52 R5 R7 R15 R57 R45 R51 R26 R97 R64 R67 R98 R87 R46 R4 R-17 R-11 R-15 R38 R17 R-211 R-190 R-137 R8 R55 R62 R72 R74 R19 R52 R-35 R-141 R-6 R27 R2 R42 R-4 R30 R28 R41 R78 R43 R22 R0 R32 R85 R88 R66 R79 R80 R92 R77 R58 R34 R12 R11 R53 R-12 R-2 R6 R33 R10 R-183 R16 R29 R36 R90 R84 R75 R68 R56 R44 R50 R61 R60 R63 R20 R73 R23 R-181 R69 R82 R9 R54 R70 R65 R83 R25 R71 R31\n",
"True\n", "True\n",
"5\n" "5\n"
] ]
...@@ -523,17 +525,17 @@ ...@@ -523,17 +525,17 @@
}, },
{ {
"cell_type": "code", "cell_type": "code",
"execution_count": 15, "execution_count": 47,
"id": "004e8ba8", "id": "004e8ba8",
"metadata": {}, "metadata": {},
"outputs": [ "outputs": [
{ {
"data": { "data": {
"text/plain": [ "text/plain": [
"0.4232928466796875" "2.090535888671875"
] ]
}, },
"execution_count": 15, "execution_count": 47,
"metadata": {}, "metadata": {},
"output_type": "execute_result" "output_type": "execute_result"
} }
......
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