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import os
import sys
import cv2
import pytest
from typing import List
import numpy as np
pytest_plugins = ('pytest_asyncio')
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from manga_translator.textline_merge import dispatch as dispatch_merge
from manga_translator.utils import (
TextBlock,
Quadrilateral,
visualize_textblocks,
)
BBOX_IMAGE_FOLDER = 'test/testdata/bboxes'
os.makedirs(BBOX_IMAGE_FOLDER, exist_ok=True)
def save_regions_to_image(path: str, regions: TextBlock, width: int, height: int):
img = np.zeros((height, width, 3))
cv2.imwrite(path, visualize_textblocks(img, regions))
def find_region_containing_line(line, regions):
"""
Finds region index which contains the `line`.
"""
for i, region in enumerate(regions):
for rline in region.lines:
if (line == rline).all():
return i
raise ValueError('regions do not contain line')
async def generate_combinations(lines: List[List[List[int]]], width: int, height: int):
"""
Returns the line combination and regions generated by the textline merge.
"""
regions = await dispatch_merge([Quadrilateral(np.array(line), '', 1) for line in lines], width, height)
generated_combinations = []
for region in regions:
combination = []
for rline in region.lines:
for i, line in enumerate(lines):
if (line == rline).all():
combination.append(i)
break
combination.sort()
generated_combinations.append(combination)
return generated_combinations, regions
async def run_test(lines, expected_combinations, width, height, path = None):
generated_combinations, regions = await generate_combinations(lines, width, height)
# Save as image
path = os.path.join(BBOX_IMAGE_FOLDER, path or 'bboxes.png')
save_regions_to_image(path, regions, width, height)
invalid_regions = []
for i, generated_combination in enumerate(generated_combinations):
if generated_combination not in expected_combinations:
invalid_regions.append(i)
if invalid_regions:
raise Exception(f'Invalid regions: {invalid_regions}, Generated combination: {generated_combinations} - Image saved under {path}')
# # Search for all associated regions
# associated_regions = []
# similar_expected_combination = None
# for combination in expected_combinations:
# if generated_combination[0] in combination:
# similar_expected_combination = combination
# break
# assert similar_expected_combination is not None
# for j in similar_expected_combination:
# ri = find_region_containing_line(lines[j], regions)
# if ri and ri not in associated_regions:
# associated_regions.append(ri)
# raise Exception(f'Regions: {associated_regions} should be merged - Image saved under {path}')
@pytest.mark.asyncio
async def test_merge_image1(): # demo/image/original3.jpg
width, height = 2590, 4096
lines = [
[[ 0, 3280], [ 237, 3234], [ 394, 4069], [ 149, 4096]],
[[2400, 3210], [2493, 3210], [2498, 4061], [2405, 4061]],
[[2306, 3208], [2410, 3208], [2416, 3992], [2312, 3992]],
[[2226, 3208], [2328, 3208], [2328, 4050], [2226, 4050]],
[[2149, 3205], [2242, 3205], [2237, 4005], [2144, 4005]],
[[2160, 2298], [2245, 2298], [2250, 3069], [2165, 3069]],
[[2082, 2296], [2176, 2296], [2176, 3032], [2082, 3032]],
[[2008, 2293], [2109, 2293], [2109, 2680], [2008, 2680]],
[[ 162, 1733], [ 256, 1733], [ 256, 2141], [ 162, 2141]],
[[ 242, 1733], [ 336, 1733], [ 336, 2144], [ 242, 2144]],
[[2269, 1349], [2368, 1349], [2373, 1960], [2274, 1960]],
[[2186, 1352], [2288, 1352], [2288, 1760], [2186, 1760]],
[[2373, 1357], [2442, 1357], [2442, 2077], [2373, 2077]],
[[ 536, 1349], [ 613, 1349], [ 613, 1997], [ 536, 1997]],
[[ 594, 1344], [ 680, 1344], [ 696, 2072], [ 610, 2072]],
[[1037, 485], [1282, 469], [1349, 1418], [1104, 1434]],
[[ 234, 528], [ 312, 528], [ 312, 1176], [ 234, 1176]],
[[ 138, 509], [ 256, 509], [ 256, 706], [ 138, 706]],
[[2418, 384], [2504, 384], [2509, 1234], [2424, 1234]],
[[2344, 381], [2429, 381], [2434, 965], [2349, 965]],
[[2269, 376], [2370, 376], [2370, 818], [2269, 818]],
[[ 197, 42], [2405, 37], [2405, 362], [ 197, 368]],
]
expected_combinations = [[0], [1, 2, 3, 4], [5, 6, 7], [8, 9], [10, 11, 12], [13, 14], [15], [16, 17], [18, 19, 20], [21]]
await run_test(lines, expected_combinations, width, height, '1.png')
@pytest.mark.asyncio
async def test_merge_image1_upscaled(): # demo/image/original3.jpg upscaled x2
width, height = 5180, 8192
# detector has picked up less textlines
lines = [
[[ 5, 6698], [ 506, 6602], [ 794, 8133], [ 293, 8192]],
[[4800, 6421], [4986, 6421], [4997, 8122], [4810, 8122]],
[[4618, 6416], [4821, 6416], [4837, 7984], [4634, 7984]],
[[4453, 6416], [4656, 6416], [4656, 8096], [4453, 8096]],
[[4298, 6410], [4485, 6410], [4474, 8010], [4288, 8010]],
[[4309, 4592], [4496, 4592], [4512, 6144], [4325, 6144]],
[[4165, 4592], [4352, 4592], [4352, 6064], [4165, 6064]],
[[4016, 4586], [4218, 4586], [4218, 5360], [4016, 5360]],
[[ 330, 3472], [ 517, 3472], [ 517, 4288], [ 330, 4288]],
[[ 485, 3466], [ 672, 3466], [ 672, 4293], [ 485, 4293]],
[[4544, 2704], [4730, 2704], [4741, 3909], [4554, 3909]],
[[4373, 2704], [4576, 2704], [4576, 3520], [4373, 3520]],
[[4746, 2714], [4885, 2714], [4885, 4149], [4746, 4149]],
[[1072, 2709], [1226, 2709], [1226, 4000], [1072, 4000]],
[[1189, 2693], [1360, 2693], [1392, 4138], [1221, 4138]],
[[ 469, 1050], [ 624, 1050], [ 624, 2352], [ 469, 2352]],
[[ 277, 1018], [ 512, 1018], [ 512, 1413], [ 277, 1413]],
[[4837, 768], [5008, 768], [5018, 2469], [4848, 2469]],
[[4688, 762], [4858, 762], [4869, 1930], [4698, 1930]],
[[4538, 757], [4730, 757], [4741, 1632], [4549, 1632]],
[[ 474, 80], [4805, 80], [4805, 730], [ 474, 730]],
]
expected_combinations = [[0], [1, 2, 3, 4], [5, 6, 7], [8, 9], [10, 11, 12], [13, 14], [15, 16], [17, 18, 19], [20]]
await run_test(lines, expected_combinations, width, height, '1_upscaled.png')
@pytest.mark.asyncio
async def test_merge_image2():
width, height = 1317, 1637
lines = [
[[ 555, 1327], [ 609, 1311], [ 641, 1423], [ 588, 1439]],
[[ 588, 1297], [ 637, 1285], [ 665, 1396], [ 616, 1407]],
[[ 229, 1033], [ 280, 1019], [ 303, 1107], [ 252, 1121]],
[[ 265, 996], [ 311, 992], [ 318, 1078], [ 272, 1082]],
[[ 65, 953], [ 111, 950], [ 149, 1434], [ 102, 1437]],
[[ 119, 947], [ 169, 944], [ 219, 1579], [ 169, 1582]],
[[1218, 894], [1271, 899], [1234, 1251], [1180, 1245]],
[[1156, 886], [1219, 893], [1158, 1441], [1095, 1435]],
[[1243, 201], [1305, 213], [1190, 800], [1128, 788]],
[[1181, 189], [1246, 201], [1185, 557], [1120, 545]],
[[1130, 180], [1190, 191], [1090, 686], [1030, 674]],
[[1075, 169], [1133, 181], [1025, 718], [ 966, 706]],
[[1009, 154], [1076, 166], [1033, 422], [ 966, 410]],
[[ 960, 142], [1023, 155], [ 910, 694], [ 847, 682]],
[[ 742, 31], [ 804, 38], [ 759, 489], [ 698, 482]],
[[ 688, 26], [ 744, 33], [ 669, 720], [ 612, 714]],
[[ 624, 14], [ 686, 21], [ 629, 573], [ 568, 566]],
[[ 566, 9], [ 629, 15], [ 585, 473], [ 522, 466]],
]
expected_combinations = [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9, 10, 11, 12, 13], [14, 15, 16, 17]]
await run_test(lines, expected_combinations, width, height, '2.png')
@pytest.mark.asyncio
async def test_merge_image3():
width, height = 1920, 1360
lines = [
[[ 46, 467], [ 103, 462], [ 158, 1122], [ 101, 1127]],
[[1651, 322], [1703, 318], [1716, 512], [1663, 516]],
[[1702, 317], [1756, 315], [1778, 748], [1725, 751]],
[[1758, 313], [1810, 311], [1825, 638], [1773, 641]],
[[ 752, 261], [ 800, 265], [ 775, 525], [ 727, 521]],
[[ 471, 228], [ 528, 221], [ 627, 935], [ 570, 942]],
[[1243, 128], [1631, 101], [1688, 888], [1301, 916]],
[[ 540, 215], [ 597, 207], [ 681, 812], [ 623, 820]],
[[ 592, 181], [ 662, 166], [ 715, 412], [ 645, 427]],
[[ 852, 107], [ 903, 101], [ 962, 633], [ 911, 640]],
[[ 223, 97], [ 288, 97], [ 297, 936], [ 232, 936]],
[[1816, 45], [1885, 50], [1862, 345], [1793, 340]],
[[1745, 42], [1815, 43], [1808, 346], [1738, 345]],
]
expected_combinations = [[0], [10], [1, 2, 3], [11, 12], [5, 7, 8], [4], [9], [6]]
await run_test(lines, expected_combinations, width, height, '3.png')
@pytest.mark.asyncio
async def test_merge_image4(): # Issue #215
width, height = 800, 1280
lines = [
[[ 467, 1074], [ 614, 1073], [ 614, 1110], [ 467, 1111]],
[[ 484, 1041], [ 600, 1041], [ 600, 1081], [ 484, 1081]],
[[ 358, 952], [ 515, 952], [ 515, 989], [ 358, 989]],
[[ 351, 920], [ 513, 920], [ 513, 956], [ 351, 956]],
[[ 378, 886], [ 484, 886], [ 484, 926], [ 378, 926]],
[[ 388, 852], [ 477, 856], [ 475, 895], [ 386, 891]],
[[ 164, 629], [ 298, 628], [ 298, 668], [ 164, 669]],
[[ 184, 594], [ 270, 594], [ 270, 640], [ 184, 640]],
[[ 149, 563], [ 305, 562], [ 305, 605], [ 149, 605]],
[[ 127, 532], [ 330, 532], [ 330, 571], [ 127, 571]],
[[ 179, 497], [ 274, 495], [ 275, 541], [ 180, 543]],
]
expected_combinations = [[0, 1], [2, 3, 4, 5], [6, 7, 8, 9, 10]]
await run_test(lines, expected_combinations, width, height, '4.png')
@pytest.mark.asyncio
async def test_merge_image5(): # Issue #221
width, height = 2750, 2750
lines = [
[[ 10, 2698], [ 379, 2698], [ 379, 2744], [ 10, 2744]],
[[ 137, 2658], [ 250, 2658], [ 250, 2714], [ 137, 2714]],
[[ 19, 1457], [ 660, 1405], [ 689, 1754], [ 48, 1806]],
[[ 390, 637], [ 553, 637], [ 553, 674], [ 390, 674]],
[[ 381, 599], [ 562, 599], [ 562, 653], [ 381, 653]],
[[ 377, 572], [ 567, 572], [ 567, 621], [ 377, 621]],
[[ 368, 538], [ 571, 535], [ 571, 594], [ 368, 597]],
[[ 397, 512], [ 540, 508], [ 542, 563], [ 399, 567]],
[[ 408, 490], [ 529, 481], [ 533, 529], [ 411, 538]],
[[ 282, 415], [ 368, 415], [ 368, 454], [ 282, 454]],
[[ 222, 381], [ 433, 379], [ 433, 427], [ 222, 429]],
[[ 216, 352], [ 436, 352], [ 436, 399], [ 216, 399]],
[[ 250, 327], [ 395, 327], [ 395, 365], [ 250, 365]],
[[ 288, 300], [ 354, 300], [ 354, 333], [ 288, 333]],
]
expected_combinations = [[0], [1], [2], [3, 4, 5, 6, 7, 8], [9, 10, 11, 12, 13]]
await run_test(lines, expected_combinations, width, height, '5.png')
@pytest.mark.asyncio
async def test_merge_image6():
width, height = 1441, 2048
lines = [
[[1153, 1496], [1255, 1496], [1255, 1528], [1153, 1528]],
[[1159, 1460], [1251, 1460], [1251, 1496], [1159, 1496]],
[[1137, 1430], [1273, 1430], [1273, 1458], [1137, 1458]],
[[1157, 1394], [1255, 1394], [1255, 1424], [1157, 1424]],
[[1149, 1362], [1265, 1362], [1265, 1390], [1149, 1390]],
[[1123, 1330], [1283, 1330], [1283, 1358], [1123, 1358]],
[[226, 885], [305, 891], [302, 929], [223, 923]],
[[193, 856], [333, 860], [331, 894], [192, 890]],
[[191, 822], [327, 826], [325, 860], [190, 856]],
[[472, 818], [638, 818], [638, 844], [472, 844]],
[[204, 792], [320, 792], [320, 826], [204, 826]],
[[470, 782], [630, 782], [630, 810], [470, 810]],
[[474, 752], [622, 752], [622, 774], [474, 774]],
[[464, 716], [632, 716], [632, 744], [464, 744]],
[[460, 682], [642, 682], [642, 710], [460, 710]],
[[506, 650], [592, 650], [592, 680], [506, 680]],
[[812, 425], [899, 430], [897, 461], [810, 456]],
[[809, 396], [919, 396], [919, 424], [809, 424]],
[[162, 398], [254, 398], [254, 420], [162, 420]],
[[821, 364], [901, 364], [901, 392], [821, 392]],
[[114, 364], [306, 364], [306, 390], [114, 390]],
[[143, 324], [273, 328], [272, 356], [142, 352]],
[[142, 298], [272, 298], [272, 320], [142, 320]],
[[552, 282], [642, 282], [642, 318], [552, 318]],
[[128, 262], [288, 262], [288, 288], [128, 288]],
[[536, 254], [660, 254], [660, 282], [536, 282]],
[[1037, 238], [1203, 238], [1203, 264], [1037, 264]],
[[534, 220], [660, 220], [660, 248], [534, 248]],
[[1067, 204], [1181, 204], [1181, 232], [1067, 232]],
[[530, 186], [668, 186], [668, 214], [530, 214]],
[[1055, 172], [1187, 172], [1187, 200], [1055, 200]],
[[538, 154], [660, 154], [660, 182], [538, 182]],
]
expected_combinations = [[0, 1, 2, 3, 4, 5], [6, 7, 8, 10], [9, 11, 12, 13, 14, 15], [16, 17, 19], [18, 20, 21, 22, 24], [23, 25, 27, 29, 31], [26, 28, 30]]
await run_test(lines, expected_combinations, width, height, '6.png')
@pytest.mark.asyncio
async def test_merge_image7():
width, height = 1700, 2400
lines = [
[[ 287, 2123], [ 343, 2123], [ 343, 2332], [ 287, 2332]],
[[ 225, 2120], [ 292, 2120], [ 292, 2287], [ 225, 2287]],
[[ 120, 1859], [ 171, 1859], [ 175, 2075], [ 123, 2075]],
[[ 210, 1857], [ 270, 1854], [ 276, 1953], [ 217, 1956]],
[[ 171, 1857], [ 223, 1857], [ 220, 2076], [ 168, 2076]],
[[ 318, 1734], [ 375, 1734], [ 375, 1931], [ 318, 1931]],
[[ 368, 1731], [ 429, 1731], [ 429, 1882], [ 368, 1882]],
[[1217, 937], [1273, 939], [1270, 1120], [1214, 1118]],
[[1259, 937], [1318, 934], [1325, 1035], [1265, 1039]],
[[1437, 785], [1492, 785], [1492, 1068], [1437, 1068]],
[[1487, 784], [1542, 782], [1548, 1025], [1493, 1026]],
[[1381, 782], [1435, 782], [1435, 1026], [1381, 1026]],
[[142, 429], [184, 429], [181, 607], [139, 607]],
[[103, 431], [143, 431], [143, 640], [103, 640]],
[[192, 209], [260, 207], [267, 492], [198, 493]],
[[431, 201], [473, 201], [473, 356], [431, 356]],
[[384, 200], [435, 200], [435, 360], [384, 360]],
[[346, 201], [393, 201], [393, 393], [346, 393]],
[[1559, 118], [1600, 118], [1600, 415], [1559, 415]],
[[1468, 117], [1509, 117], [1509, 448], [1468, 448]],
[[1510, 115], [1551, 115], [1554, 415], [1514, 415]],
[[575, 107], [620, 107], [620, 318], [575, 318]],
[[535, 107], [581, 107], [581, 318], [535, 318]],
[[614, 106], [659, 106], [659, 318], [614, 318]],
[[496, 106], [543, 106], [543, 253], [496, 253]],
]
expected_combinations = [[0, 1], [2, 3, 4], [5, 6], [7, 8], [9, 10, 11], [12, 13], [14], [15, 16, 17], [21, 22, 23, 24], [18, 19, 20]]
await run_test(lines, expected_combinations, width, height, '7.png')
@pytest.mark.asyncio
async def test_merge_image8():
width, height = 1115, 1600
lines = [
[[429, 167], [470, 167], [470, 247], [429, 247]],
[[406, 175], [428, 175], [428, 306], [406, 306]],
[[ 993, 97], [1017, 97], [1017, 158], [ 993, 158]],
[[ 636, 1469], [ 659, 1469], [ 659, 1531], [ 636, 1531]],
[[431, 519], [454, 519], [454, 584], [431, 584]],
[[161, 483], [187, 483], [187, 570], [161, 570]],
[[529, 438], [551, 438], [551, 528], [529, 528]],
[[ 234, 998], [ 261, 998], [ 261, 1125], [ 234, 1125]],
[[728, 480], [750, 480], [750, 589], [728, 589]],
[[562, 438], [589, 438], [589, 572], [562, 572]],
[[ 267, 1384], [ 294, 1384], [ 294, 1519], [ 267, 1519]],
[[978, 417], [999, 417], [999, 522], [978, 522]],
[[568, 78], [595, 78], [595, 234], [568, 234]],
[[ 170, 1388], [ 192, 1388], [ 192, 1517], [ 170, 1517]],
[[458, 520], [479, 520], [479, 644], [458, 644]],
[[912, 720], [943, 720], [943, 905], [912, 905]],
[[537, 80], [559, 80], [559, 212], [537, 212]],
[[904, 130], [926, 130], [926, 264], [904, 264]],
[[137, 484], [158, 484], [158, 631], [137, 631]],
[[ 203, 1386], [ 225, 1386], [ 225, 1541], [ 203, 1541]],
[[839, 131], [860, 131], [860, 284], [839, 284]],
[[701, 480], [721, 480], [721, 633], [701, 633]],
[[ 270, 1002], [ 297, 1002], [ 297, 1209], [ 270, 1209]],
[[ 236, 1384], [ 259, 1385], [ 258, 1563], [ 234, 1562]],
[[871, 131], [893, 131], [893, 308], [871, 308]],
]
expected_combinations = [[0, 1], [2], [3], [4, 14], [5, 18], [6, 9], [7, 22], [8, 21], [10, 13, 19, 23], [11], [12, 16], [15], [17, 20, 24]]
await run_test(lines, expected_combinations, width, height, '8.png')
@pytest.mark.asyncio
async def test_merge_image9():
width, height = 1158, 1637
lines = [
[[ 527, 957], [ 646, 933], [ 685, 1129], [ 565, 1153]],
[[ 0, 89], [112, 73], [142, 311], [ 14, 327]],
[[ 866, 824], [ 967, 803], [1010, 1006], [ 909, 1027]],
[[ 213, 791], [ 327, 771], [ 373, 1028], [ 258, 1048]],
[[ 969, 1483], [1008, 1475], [1033, 1609], [ 996, 1616]],
[[484, 20], [553, 20], [556, 334], [488, 334]],
[[550, 20], [617, 22], [605, 369], [539, 367]],
[[1018, 20], [1080, 21], [1075, 426], [1013, 425]],
[[1080, 9], [1148, 9], [1152, 464], [1083, 464]],
]
expected_combinations = [[0], [2], [3], [1], [4], [5, 6], [7, 8]]
await run_test(lines, expected_combinations, width, height, '9.png')
@pytest.mark.asyncio
async def test_merge_image10():
width, height = 3035, 4299
lines = [
[[298, 420], [357, 420], [357, 567], [298, 567]],
[[2628, 1612], [2674, 1612], [2674, 1788], [2628, 1788]],
[[ 982, 3250], [1287, 3240], [1289, 3316], [ 984, 3326]],
[[1339, 1948], [1398, 1948], [1398, 2229], [1339, 2229]],
[[1410, 1948], [1469, 1948], [1469, 2233], [1410, 2233]],
[[1520, 231], [1578, 231], [1578, 525], [1520, 525]],
[[2632, 1772], [2674, 1772], [2674, 2003], [2632, 2003]],
[[1595, 235], [1641, 235], [1641, 508], [1595, 508]],
[[2569, 1608], [2624, 1608], [2624, 1948], [2569, 1948]],
[[348, 424], [403, 424], [403, 814], [348, 814]],
[[1444, 231], [1503, 231], [1503, 697], [1444, 697]],
[[2665, 1609], [2720, 1608], [2729, 2052], [2674, 2053]],
[[1645, 3187], [1704, 3186], [1713, 3832], [1654, 3833]],
[[1708, 3195], [1750, 3195], [1750, 3795], [1708, 3795]],
]
# print((await generate_combinations(lines, width, height))[0])
expected_combinations = [[0, 9], [1, 8, 6, 11], [2], [3, 4], [5, 7, 10], [12, 13]]
await run_test(lines, expected_combinations, width, height, '10.png')
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