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charxiv_160__source_original | charxiv_160 | 160 | source_original | b85b6430bf34c48152b1d57fdd95bffa34a65ebd5f680dd5c11d1af3163caab5 | b85b6430bf34c48152b1d57fdd95bffa34a65ebd5f680dd5c11d1af3163caab5 | original | 1,024 | 768 | RGB | JPEG | 53,163 | |
charxiv_163__source_original | charxiv_163 | 163 | source_original | 842da3135e60f72b30bfaade2b68ed26b074940e0878d5f7c4316417eec2021d | 842da3135e60f72b30bfaade2b68ed26b074940e0878d5f7c4316417eec2021d | original | 1,024 | 601 | RGB | JPEG | 175,987 | |
charxiv_167__source_original | charxiv_167 | 167 | source_original | 8ed7216f3216ccfb5c9dc95a46dbd954542dc78582e2d832c461e6c1aea4aa8b | 8ed7216f3216ccfb5c9dc95a46dbd954542dc78582e2d832c461e6c1aea4aa8b | original | 1,024 | 363 | RGB | JPEG | 44,512 | |
charxiv_171__source_original | charxiv_171 | 171 | source_original | 5932bceb207d40e24b570a12c19c6c4089ec2c6e136268a01c0ee2cbbb0b4a02 | 5932bceb207d40e24b570a12c19c6c4089ec2c6e136268a01c0ee2cbbb0b4a02 | original | 1,024 | 294 | RGB | JPEG | 41,639 | |
charxiv_172__source_original | charxiv_172 | 172 | source_original | 3026f3d6ae21a15907434d036eb148e2f0d78721bad73b64ffbcf3eb3eef1324 | 3026f3d6ae21a15907434d036eb148e2f0d78721bad73b64ffbcf3eb3eef1324 | original | 948 | 1,024 | RGB | JPEG | 142,571 | |
charxiv_173__source_original | charxiv_173 | 173 | source_original | 9198b8b32464ed122e7fe674eb089d53e783e1518969322e4b0c741629bca6e5 | 9198b8b32464ed122e7fe674eb089d53e783e1518969322e4b0c741629bca6e5 | original | 1,024 | 463 | RGB | JPEG | 81,545 | |
charxiv_177__source_original | charxiv_177 | 177 | source_original | 53f659a9b89ca6cf637a06b7af97cd6852fc1f2059aeb9dbceae0aea9d103358 | 53f659a9b89ca6cf637a06b7af97cd6852fc1f2059aeb9dbceae0aea9d103358 | original | 1,023 | 443 | RGB | JPEG | 43,216 | |
charxiv_179__source_original | charxiv_179 | 179 | source_original | 29af227cf72e860af6327f9437acc2aad9840236ca05cc237701e6637e14fe2c | 29af227cf72e860af6327f9437acc2aad9840236ca05cc237701e6637e14fe2c | original | 1,024 | 419 | RGB | JPEG | 49,029 | |
charxiv_180__source_original | charxiv_180 | 180 | source_original | ac6ae834392e56328d888036a9d4f3533c44a2715c873067fae7aa3df2b9cc40 | ac6ae834392e56328d888036a9d4f3533c44a2715c873067fae7aa3df2b9cc40 | original | 1,024 | 764 | RGB | JPEG | 60,854 | |
charxiv_181__source_original | charxiv_181 | 181 | source_original | aa5b116626fe49405e374216777a36160eb46d2ce74097bd50224fd95a425572 | aa5b116626fe49405e374216777a36160eb46d2ce74097bd50224fd95a425572 | original | 1,024 | 430 | RGB | JPEG | 75,418 | |
charxiv_183__source_original | charxiv_183 | 183 | source_original | 35c5cffc996b45b8ca992357cc28e489051128be2f923f452838a58b081889e3 | 35c5cffc996b45b8ca992357cc28e489051128be2f923f452838a58b081889e3 | original | 1,024 | 661 | RGB | JPEG | 50,377 | |
charxiv_193__source_original | charxiv_193 | 193 | source_original | ae94f6ddfecbe07d655c04630d4ecdbf344443658bd85e825d6f34992dc3189c | ae94f6ddfecbe07d655c04630d4ecdbf344443658bd85e825d6f34992dc3189c | original | 1,024 | 689 | RGB | JPEG | 83,570 | |
charxiv_195__source_original | charxiv_195 | 195 | source_original | ecebff4794db7f7b9f3bfa3aabf0afe07ad940e6c1c2c7baeaeb0889dba4045c | ecebff4794db7f7b9f3bfa3aabf0afe07ad940e6c1c2c7baeaeb0889dba4045c | original | 1,024 | 516 | RGB | JPEG | 108,116 | |
charxiv_196__source_original | charxiv_196 | 196 | source_original | 648558e321650021641a13e1691b541cbc059feeec2a2dd33be4dab596b9824a | 648558e321650021641a13e1691b541cbc059feeec2a2dd33be4dab596b9824a | original | 1,024 | 382 | RGB | JPEG | 33,728 | |
charxiv_197__source_original | charxiv_197 | 197 | source_original | 5d56a4842a5d0d5d85555e5562cecf27510a73ba1b0c5c8df577264dfe576dfa | 5d56a4842a5d0d5d85555e5562cecf27510a73ba1b0c5c8df577264dfe576dfa | original | 1,024 | 268 | RGB | JPEG | 43,847 | |
charxiv_198__source_original | charxiv_198 | 198 | source_original | e50df40c75ab6b9dc368f06698ebb0c11669356393bae7a98c1cb20ecc701959 | e50df40c75ab6b9dc368f06698ebb0c11669356393bae7a98c1cb20ecc701959 | original | 1,023 | 250 | RGB | JPEG | 31,310 | |
charxiv_210__source_original | charxiv_210 | 210 | source_original | 2e8dd2bd540b7a6465f968ffae6286bef2f280f011bf375a80f8a395587f1fba | 2e8dd2bd540b7a6465f968ffae6286bef2f280f011bf375a80f8a395587f1fba | original | 1,024 | 661 | RGB | JPEG | 62,818 | |
charxiv_211__source_original | charxiv_211 | 211 | source_original | c447aa143c3f787b29c24f5e3ca74e2ac7f3653ee0b53e3fed5a4f50438f82ba | c447aa143c3f787b29c24f5e3ca74e2ac7f3653ee0b53e3fed5a4f50438f82ba | original | 1,024 | 418 | RGB | JPEG | 37,083 | |
charxiv_212__source_original | charxiv_212 | 212 | source_original | b53633b52f375512608e0e353c3492bac01afa1c8f4c9a81eb131777f549d2ad | b53633b52f375512608e0e353c3492bac01afa1c8f4c9a81eb131777f549d2ad | original | 1,024 | 318 | RGB | JPEG | 37,930 | |
charxiv_214__source_original | charxiv_214 | 214 | source_original | 8c847d89ff9c6dbafe1a6526047c77cbc157d4d0f8bff7c9306633e82648ecd4 | 8c847d89ff9c6dbafe1a6526047c77cbc157d4d0f8bff7c9306633e82648ecd4 | original | 899 | 1,024 | RGB | JPEG | 79,544 | |
charxiv_215__source_original | charxiv_215 | 215 | source_original | 0af59411111438eddc4dcaad71d776c9041b7a48500b5717063985fd1b8f1f5d | 0af59411111438eddc4dcaad71d776c9041b7a48500b5717063985fd1b8f1f5d | original | 1,024 | 767 | RGB | JPEG | 69,312 | |
charxiv_217__source_original | charxiv_217 | 217 | source_original | 64246dc1eb6f8f1f68f054cb0f02785c1276d89be3d59cdcae778a588c47780e | 64246dc1eb6f8f1f68f054cb0f02785c1276d89be3d59cdcae778a588c47780e | original | 1,024 | 1,014 | RGB | JPEG | 140,761 | |
charxiv_219__source_original | charxiv_219 | 219 | source_original | d0d9bf37a3d8fafe97104e135aaeebae0791e58ca230af06037ebe0d706aca1f | d0d9bf37a3d8fafe97104e135aaeebae0791e58ca230af06037ebe0d706aca1f | original | 1,024 | 687 | RGB | JPEG | 67,379 | |
charxiv_223__source_original | charxiv_223 | 223 | source_original | cc2c488ceede842d385431907d19d542e8916059a863c991e551d9c5c32f3855 | cc2c488ceede842d385431907d19d542e8916059a863c991e551d9c5c32f3855 | original | 1,024 | 843 | RGB | JPEG | 69,832 | |
charxiv_225__source_original | charxiv_225 | 225 | source_original | f8f3b6d12fe38f7008e86bdd9dfc48de3a5280dc7dffa405d528e1b3ad42393d | f8f3b6d12fe38f7008e86bdd9dfc48de3a5280dc7dffa405d528e1b3ad42393d | original | 1,024 | 753 | RGB | JPEG | 89,576 | |
charxiv_226__source_original | charxiv_226 | 226 | source_original | 84876041dd0de488e8c560a98a8a4e7e8a070f6dba09060921e385e4f8b1ba45 | 84876041dd0de488e8c560a98a8a4e7e8a070f6dba09060921e385e4f8b1ba45 | original | 1,024 | 762 | RGB | JPEG | 61,408 | |
charxiv_228__source_original | charxiv_228 | 228 | source_original | 0e7fbf593d904b01541dbad17141ade3c1cc144325a11237cb3343866289436b | 0e7fbf593d904b01541dbad17141ade3c1cc144325a11237cb3343866289436b | original | 1,024 | 799 | RGB | JPEG | 74,383 | |
charxiv_229__source_original | charxiv_229 | 229 | source_original | c32fc4e786724e0758c4c03100a471f0d4b634159be655a00e7333f21068716c | c32fc4e786724e0758c4c03100a471f0d4b634159be655a00e7333f21068716c | original | 1,024 | 809 | RGB | JPEG | 133,170 | |
charxiv_236__source_original | charxiv_236 | 236 | source_original | 49a5d0a411264819a9e95af8c194db14edf316cc64ef5ab9c1c4221591a22eeb | 49a5d0a411264819a9e95af8c194db14edf316cc64ef5ab9c1c4221591a22eeb | original | 1,024 | 283 | RGB | JPEG | 56,598 | |
charxiv_239__source_original | charxiv_239 | 239 | source_original | cecad1f75fa689af394480a01b7a608a559bd92816369fac322dd4a04886d3a8 | cecad1f75fa689af394480a01b7a608a559bd92816369fac322dd4a04886d3a8 | original | 1,024 | 448 | RGB | JPEG | 34,137 | |
charxiv_240__source_original | charxiv_240 | 240 | source_original | 875215970b04f1d0e5319ec8608f0ebde7773fca1e62d15c7504fdfe0e4849f5 | 875215970b04f1d0e5319ec8608f0ebde7773fca1e62d15c7504fdfe0e4849f5 | original | 1,024 | 302 | RGB | JPEG | 30,156 | |
charxiv_241__source_original | charxiv_241 | 241 | source_original | 75f95a9452c2cbf4840d21b3d422c11f5f52d1d90306a6608abd2aa91fb73375 | 75f95a9452c2cbf4840d21b3d422c11f5f52d1d90306a6608abd2aa91fb73375 | original | 1,024 | 643 | RGB | JPEG | 115,340 | |
charxiv_243__source_original | charxiv_243 | 243 | source_original | 5798a1980a50b92212670791899168978cb02cccf43a63bded8596beb39efa4a | 5798a1980a50b92212670791899168978cb02cccf43a63bded8596beb39efa4a | original | 1,024 | 949 | RGB | JPEG | 110,704 |
Capturechart: CharXiv standard 32 conditions
This release pairs 1,000 CharXiv validation figures across the same 32 image conditions: the electronic source, one clean physical baseline, and 30 selected capture perturbations. It includes 5,000 unchanged official questions and 1,151 visual-evidence questions linked to the original reasoning tasks.
Load the data
from datasets import load_dataset
repo = "diuogenes/Capturechart"
images = load_dataset(repo, "images_jpeg_q85", split="validation", streaming=True)
sample = next(iter(images))
sample["image"].save("example.png")
questions = load_dataset(repo, "original_qa", split="validation")
chart_questions = questions.filter(lambda q: q["chart_id"] == sample["chart_id"])
Use token=True for a private repository after hf auth login. For a reproducible
evaluation, also pass revision="<release commit>" to every load_dataset call.
| Configuration | Rows | Contents |
|---|---|---|
images_jpeg_q85 |
32,000 | Unchanged electronic originals + native-resolution Q85 / 4:4:4 derivatives |
original_qa |
5,000 | Official questions, prompts, answers, and question metadata |
visual_evidence |
1,151 | Visual-evidence questions and parent IDs; no reference answers |
parents |
1,000 | Reasoning-task classification and child-question membership |
All configurations use the upstream validation split. No new train/test split
is introduced. Join questions to images with chart_id, select a profile, and
keep qa_id/question_id plus view_id in evaluation records. Images are stored
once per encoding and view, rather than repeated for every question. This distribution contains the JPEG encoding of the standard views.
subplot_loc_json preserves the official mixed list/string/null field as JSON text.
question preserves the official prompt; raw_question preserves the question alone.
For visual evidence, model_question contains the frozen model-facing prompt.
Image versions and pairing
JPEG distribution. Canonical original PNGs are retained in the local full release and are not hosted in this repository. This is a separately versioned input encoding, not a byte-exact substitute for canonical original-image evaluation.
images_jpeg_q85 uses the already-frozen JPEG derivatives; JPEG is
lossy and is a separately versioned input protocol. No image is resized or recoded
during this export. sha256 identifies the embedded bytes; original_sha256 links
a derivative to its canonical original. Each image has a stable
view_id = chart_id + "__" + profile. Image bytes are embedded in Parquet.
The ordered conditions, physical mechanisms, selected intensities, original
references, matched/shared control distinction and answerability gates are preserved
in metadata/profile_standard.json and metadata/profile_catalog.csv.
Visual-evidence design and evaluation
The full release maps all 1,000 original reasoning tasks: 173 are decomposed into 1,151 visual-evidence questions, 810 remain direct-visual tasks, and 17 retain their ambiguity/evidence status. There is no three-question cap. At all 32 conditions the full release yields 160,000 original-question records and 36,832 visual-evidence records; these are input counts, not completed model results.
Visual-evidence questions were produced through Codex image inspection and authorized
reference facts. human_approved=false is retained; the frozen release is not a claim
of completed human approval. The standard condition list does not certify that every
degraded image preserves answerability. Use the recorded per-condition gates.
metadata/evaluation_protocol.json preserves the frozen EvalKit transport,
answer/judge prompts and decoding settings with portable model identifiers. Official
original-question evaluation uses the native CharXiv adapter and scorer. VE scoring
uses the per-question reference units/tolerances; it is not a uniform 10% rule.
The private VE reference answers, tolerances and composition solutions are excluded
from this package. The question-only VE configuration cannot reproduce VE scores
without those private references. Official CharXiv answers are included in original_qa.
Source and license
Derived from princeton-nlp/CharXiv and its validation figures and questions. Please cite CharXiv: Charting Gaps in Realistic Chart Understanding in Multimodal LLMs. The upstream dataset declares CC BY-SA 4.0; this derivative data release retains CC BY-SA 4.0. Changes comprise synthetic capture views, separately marked JPEG derivatives, visual-evidence questions, portable metadata and storage layout. Original figure credits and rights remain with their respective creators.
This package contains the CharXiv component only. release.json records export
counts, input hashes and validation evidence. checksums.sha256 covers release files.
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