cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.3535/x65-zrv-dmn
title: Diplodonta rotundata (Montagu, 1803)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/88e-x3e-75t
title: Trochulus hispidus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.rs8wsn
title: Occurrence Download

description: A dataset containing 10096 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Verbascum chaixii"
 ]
}

 The dataset includes 10096 records from 278 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0008955-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/dgz-s43-lgv
title: Poiretia cornea (Brumati, 1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/fmc-sr2-e3d
title: Cochlostoma tessellatum platanusae W. Klemm, 1962

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/k7a-wrn-hb1
title: Mastus pupa (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/5ds-1qa-jrj
title: Carychium tridentatum (Risso, 1826)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/5t5-1pq-tn9
title: Armenica laevicollis banki Neubert & Menkhorst, 1994

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/nsw-e6g-z8l
title: Auristomia barashi (Bogi & Galil, 2000)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/p1w-hpc-96f
title: Antalis novemcostata (Lamarck, 1818)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/wq7-mbq-vqw
title: Patella pellucida Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/x0e-a3c-0cg
title: Krachia tiara (Monterosato, 1874)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bxt-p5h-951
title: Obtusella intersecta (S. V. Wood, 1857)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.m6uvws
title: Occurrence Download

description: A dataset listing the 3041 species recorded in GBIF matching the query:
{
 "and" : [
 "GadmGid is DEU.11.32.1_1",
 "Year 2010-2025"
 ]
}

 The dataset's 3041 records were derived from 20 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0008937-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/y27-2gn-2w9
title: Perforatella incarnata (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/y7v-vys-r7k
title: Xerocrassa cretica (L. Pfeiffer, 1841)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/rbt-8x5-74r
title: Monophorus perversus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/t44-cwb-tjb
title: Crisilla semistriata (Montagu, 1808)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/6av-k6a-sjh
title: Metafruticicola schuberti (J. R. Roth, 1839)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/4dj-lav-2sg
title: Dendostrea folium (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ej6-cww-sb3
title: Vitrea meijeri Maassen, 1998

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/87a-yaw-46a
title: Cepaea hortensis (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/xld-crs-yvl
title: Hyalocylis striata (Rang, 1828)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/agk-bqc-06x
title: Eulimella acicula (R. A. Philippi, 1836)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/jg4-la9-fqd
title: Helix nucula Mousson, 1854

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/0qq-j6b-8y4
title: Terebra subulata (Linnaeus, 1767)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/p82-4xq-fm7
title: Dikoleps pruinosa (Chaster, 1896)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/cgl-5me-fzn
title: Pleurotomoides gracilis (Montagu, 1803)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/smq-v7l-6hj
title: Rissoina bruguieri (Payraudeau, 1826)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/wr0-2e6-3fw
title: Cuvierina atlantica Bé, MacClintock & Currie, 1972

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/m0f-qp1-64q
title: Eulimidae R. A. Philippi, 1853

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tm3-20y-j3m
title: Grandinenia ardouiniana (Heude, 1885)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/lxt-aap-qnm
title: Steromphala rarilineata (Michaud, 1829)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/sty-5xk-xf0
title: Aegopinella nitens (Michaud, 1831)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/psb-r8s-vhw
title: Crepidula Lamarck, 1799

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/yn2-l49-94p
title: Cernuella jonica (Mousson, 1854)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/6h9-8j8-4tj
title: Fusinus Rafinesque, 1815

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ts7-n3n-lty
title: Monacha syriaca (Ehrenberg, 1831)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/6fy-p8h-9v2
title: Caecum armoricum de Folin, 1869

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/73g-s3p-3sh
title: Tibersyrnola unifasciata (Forbes, 1844)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tj4-dya-6t1
title: Cepaea nemoralis (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/s0v-seb-awn
title: Eatonina fulgida (J. Adams, 1797)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/w5e-7mx-kyk
title: Ringicula Deshayes, 1838

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/58s-qmr-em5
title: Buccinum humphreysianum Bennett, 1824

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bg9-9me-tyw
title: Marmorofusus verrucosus (Gmelin, 1791)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/erw-nak-l89
title: Lajonkairia lajonkairii (Payraudeau, 1826)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/abw-anw-13j
title: Kellia suborbicularis (Montagu, 1803)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/hwv-8k6-3gq
title: Gyraulus Charpentier, 1837

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/2fr-218-1ls
title: Epifungium ulu (Pilsbry, 1921)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/znp-ctb-m0z
title: Trochulus hispidus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/z5z-399-b24
title: Modiolus barbatus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tct-kb9-px6
title: Helicigona A. Férussac, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tde-q7c-6qr
title: Metafruticicola naxiana (A. Férussac, 1832)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/qk1-ev8-pwl
title: Theba pisana (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tpr-vrp-zdz
title: Polystira Woodring, 1928

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/6ya-4qw-dsf
title: Oxychilus draparnaudi (H. Beck, 1837)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/anm-abj-b14
title: Urticicola glabellus (Draparnaud, 1801)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/s94-0bx-3ed
title: Nquma rousi (G. B. Sowerby III, 1886)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/gmj-2er-w1g
title: Leufroyia erronea Monterosato, 1884

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/smn-xre-nre
title: Cumia intertexta (Helbling, 1779)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/v9a-q5y-8h4
title: Surrepifungium patamakanthini A. Gittenberger & E. Gittenberger, 2005

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/xbj-svz-w6n
title: Chilostoma Fitzinger, 1833

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/wdt-tl7-45d
title: Acanthinula aculeata (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bd8-x9x-kna
title: Acteon tornatilis (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/t2e-jh4-rjp
title: Aegopinella nitidula (Draparnaud, 1805)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/th7-f3x-fs3
title: Enginella leucozona (R. A. Philippi, 1844)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tza-c2t-181
title: Rhomboidella prideauxi (Leach, 1815)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/b25-jwk-y9g
title: Xerocrassa cretica (L. Pfeiffer, 1841)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/02c-ch7-x5a
title: Cryptella famarae Hutterer & Groh, 1991

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/kyh-s10-xb9
title: Alvania punctura (Montagu, 1803)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/alc-kzl-en2
title: Epifungium ulu (Pilsbry, 1921)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/srs-wpb-9jz
title: Helix secernenda Rossmässler, 1847

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/mw4-126-s2k
title: Epidendrium aureum Gittenberger & Gittenberger, 2005

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/3qm-lbm-mq9
title: Sultana Shuttleworth, 1856

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/4g0-58k-9lb
title: Turridae H. Adams & A. Adams, 1853 (1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/e4g-1vq-vtc
title: Caecum sepimentum de Folin, 1868

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/3bw-vck-29d
title: Clausilia bidentata bidentata (Strøm, 1765)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/4x0-7m5-g0a
title: Ammonicera rota (Forbes & Hanley, 1850)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/fs5-tmh-4sl
title: Dinarica pouzolzii (Deshayes, 1832)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/kyr-esz-wmy
title: Cerithiopsis jeffreysi R. B. Watson, 1885

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/b52-93t-fse
title: Truncatellina claustralis (Gredler, 1856)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/wzs-kgf-c3b
title: Vitrea crystallina (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/h8l-7ll-ds2
title: Epifungium lochi (A. Gittenberger & Goud, 2000)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/q54-5p0-qpp
title: Balea Gray, 1824

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/r69-3q0-pke
title: Zebrina detrita (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/q56-9sy-e5r
title: Emarginula solidula O. G. Costa, 1829

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/zpy-wly-n5a
title: Vertigo pygmaea (Draparnaud, 1801)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/g8g-jzr-hnq
title: Carinigera buresi polimilitis E. Gittenberger & Uit de Weerd, 2004

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/frl-efw-vlt
title: Metafruticicola noverca (L. Pfeiffer, 1853)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tz5-n5p-dg4
title: Faustina Kobelt, 1904

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.rddf6r
title: Occurrence Download

description: A dataset containing 545 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Conyza subscaposa"
 ]
}

 The dataset includes 545 records from 34 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0008960-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/7z5-x77-f0f
title: Tiberia minuscula (Monterosato, 1880)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/pbd-j71-2rv
title: Caecum trachea (Montagu, 1803)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/61c-j3n-ssv
title: Iberus splendidus (Draparnaud, 1801)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/jpt-56v-d16
title: Parastrophia asturiana de Folin, 1870

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/6k8-w21-0d7
title: Caucasotachea vindobonensis (C. Pfeiffer, 1828)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/cvy-8l7-65p
title: Swainsonia ocellata (Swainson, 1831)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/gfw-ckc-30n
title: Metafruticicola pellita (A. Férussac, 1832)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/2v3-8xm-e2f
title: Rissoella opalina (Jeffreys, 1848)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/web-s2n-24d
title: Conus ventricosus Gmelin, 1791

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/l5q-x2q-xm3
title: Turbonilla pumila G. Seguenza, 1876

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/cqz-st8-mmh
title: Obtusella intersecta (S. V. Wood, 1857)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ycp-9tn-7ma
title: Ocenebra erinaceus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/6xn-n51-bjw
title: Aegopis croaticus (A. Férussac, 1832)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ax2-hye-r3r
title: Trochulus hispidus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/7tm-ckf-3yg
title: Nucella lapillus (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/947-xkh-658
title: Euchondrus septemdentatus (J. R. Roth, 1839)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.5281/zenodo.15009379
title: Synthetic OCR Dataset: 105,738 Tamil Text Lines Rendered in 27 Diverse Fonts with Corresponding Ground Truth Annotations

description: This dataset provides a benchmark for Tamil Optical Character Recognition (OCR), covering both handwritten (Hangual) and printed Tamil text. It includes high-quality ground truth (GT) text files paired with corresponding TIFF images, making it valuable for training and evaluating OCR models, particularly for Tesseract, deep learning-based recognition, and AI research.

Dataset Highlights



Total Size: 3.6GB

Total Pairs: Approximately, 7,69,396 tiff, gt.txt and box files

Handwritten Fonts (9 Unicode Fonts):



Aazhi, Gnani, Hemalatha, Indumathi, Kalayarasi, Siva_01, Siva_02, Sudeeptha, Yogeshwaran



Printed Fonts (9 Unicode Fonts):



Arima, HindMadurai, MuktaMalar, TAU-Ezhil, TAU-Kambar, TAU-Marutham, TAU-Neythal, TAU-Valluvar, AnekTamil, Catamaran, Kavivanar, Pavanam, TAU-Barathi, TAU-Kabilar, TAU-Malar, TAU-Mullai, TAU-Nilavu, TiroTamil



Data Source:



The text corpus (GT text files) is curated from Wikipedia, Wikisource, Maattru and Theekkathir ensuring linguistic diversity.

The fonts are publicly available Unicode Tamil fonts, sourced from Google Fonts and Tamil Virtual University.




File Structure



tam_new-ground-truth/├── 00001.gt.txt├── 00001.tiff├── 00001.box├── 00001.lstm├── 00002.gt.txt├── 00002.tiff├── 00002.box├── 00002.lstm├── ...


Cite this work

@dataset{tamilocr_dataset_2025,  author    = {Syedkhaleel Jageer},  title     = {Synthetic OCR Dataset: 105,738 Tamil Text Lines Rendered in 27 Diverse Fonts with Corresponding Ground Truth Annotations},  year      = {2025},  publisher = {Zenodo},  doi       = {10.5281/zenodo.16881612},  url       = {https://doi.org/10.5281/zenodo.16881612}}
DOI: 10.5281/zenodo.16881612
title: Synthetic OCR Dataset: 105,738 Tamil Text Lines Rendered in 27 Diverse Fonts with Corresponding Ground Truth Annotations

description: This dataset provides a benchmark for Tamil Optical Character Recognition (OCR), covering both handwritten (Hangual) and printed Tamil text. It includes high-quality ground truth (GT) text files paired with corresponding TIFF images, making it valuable for training and evaluating OCR models, particularly for Tesseract, deep learning-based recognition, and AI research.

Dataset Highlights



Total Size: 3.6GB

Total Pairs: Approximately, 7,69,396 tiff, gt.txt and box files

Handwritten Fonts (9 Unicode Fonts):



Aazhi, Gnani, Hemalatha, Indumathi, Kalayarasi, Siva_01, Siva_02, Sudeeptha, Yogeshwaran



Printed Fonts (9 Unicode Fonts):



Arima, HindMadurai, MuktaMalar, TAU-Ezhil, TAU-Kambar, TAU-Marutham, TAU-Neythal, TAU-Valluvar, AnekTamil, Catamaran, Kavivanar, Pavanam, TAU-Barathi, TAU-Kabilar, TAU-Malar, TAU-Mullai, TAU-Nilavu, TiroTamil



Data Source:



The text corpus (GT text files) is curated from Wikipedia, Wikisource, Maattru and Theekkathir ensuring linguistic diversity.

The fonts are publicly available Unicode Tamil fonts, sourced from Google Fonts and Tamil Virtual University.




File Structure



tam_new-ground-truth/├── 00001.gt.txt├── 00001.tiff├── 00001.box├── 00001.lstm├── 00002.gt.txt├── 00002.tiff├── 00002.box├── 00002.lstm├── ...


Cite this work

@dataset{tamilocr_dataset_2025,  author    = {Syedkhaleel Jageer},  title     = {Synthetic OCR Dataset: 105,738 Tamil Text Lines Rendered in 27 Diverse Fonts with Corresponding Ground Truth Annotations},  year      = {2025},  publisher = {Zenodo},  doi       = {10.5281/zenodo.16881612},  url       = {https://doi.org/10.5281/zenodo.16881612}}
DOI: 10.3535/nm5-s4c-8q2
title: Emarginula solidula O. G. Costa, 1829

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/psx-p6a-x3d
title: Poiretia cornea (Brumati, 1838)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/656-zex-vdr
title: Iberus splendidus (Draparnaud, 1801)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/t7k-lrp-498
title: Otala punctata (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/wtg-cpz-r1c
title: Crenella arenaria Monterosato, 1875

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tcs-rr6-rya
title: Cepaea hortensis (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/xes-q5k-12n
title: Metafruticicola Ihering, 1892

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/0r1-kap-qg2
title: Cornu aspersum (O. F. Müller, 1774)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ajv-92z-n2k
title: Alvania beanii (Hanley, 1844)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/prg-x0t-xen
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/2dk-8m0-ads
title: Cochlostoma scalarinum (A. Villa & G. B. Villa, 1841)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/r0m-n2h-nw1
title: Bittium J. E. Gray, 1847

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.