---

Overview

VisEDA is a Python toolkit for exploratory data analysis across five major data modalities:

Module	Designed for	Core analyses
ImageEDA	Image datasets	size, aspect ratio, brightness, contrast, sharpness, noise, exposure, colour, texture, frequency, duplicates, class balance
VideoEDA	Video datasets	frame count, duration, FPS, temporal brightness/contrast, sharpness, blur, motion, scene changes, similarity
HyperspectralEDA	Hyperspectral cubes	band statistics, SNR, noise, dropout bands, vegetation/water indices, PCA, false colour, spectral diversity
PointCloudEDA	3D point clouds	geometry, density, height, duplicates, outliers, nearest neighbours, PCA shape descriptors, cloud distances
TextEDA	Text/NLP datasets	document length, vocabulary, lexical diversity, readability, symbols, scripts, duplicates, TF-IDF distances, label analysis

VisEDA is intended for data scientists, researchers, students, and practitioners who want a consistent EDA workflow before training machine-learning or deep-learning models.

---

Why VisEDA?

Exploratory analysis is standard practice for tabular data, but visual and multimodal datasets often require separate tools and custom scripts.

VisEDA provides a unified interface for:

• dataset inventory and integrity checks
• quality and distribution analysis
• class-balance inspection
• duplicate and similarity analysis
• per-sample and dataset-level visualisations
• self-contained HTML reports
• command-line workflows
• Python API workflows
• reproducible pre-model data auditing

The goal is simple:

Understand the dataset before trusting the model.

---

Installation

Install the base package from PyPI:

pip install viseda

Optional extras

For extended hyperspectral file support:

pip install "viseda[hyperspectral]"

For LAS/LAZ point-cloud support:

pip install "viseda[pointcloud]"

Install all optional dependencies:

pip install "viseda[all]"

Python 3.9+ is recommended.

---

Quick Start

Important: ImageEDA uses plot() for its comprehensive dataset dashboard.
VideoEDA, HyperspectralEDA, PointCloudEDA, and TextEDA expose plot_dataset() for dataset-level dashboards.

ImageEDA

from viseda import ImageEDA

eda = ImageEDA(verbose=True)

eda.load(
    "path/to/images",
    label_from_parent=True
)

summary = eda.summary()

print(summary["inventory"])
print(summary["quality"])

# ImageEDA's full dataset dashboard is plot(), not plot_dataset()
eda.plot(
    save_path="image_dashboard.png"
)

eda.report(
    "viseda_image_report.html"
)

For in-memory images:

import numpy as np
from viseda import ImageEDA

images = [
    np.random.default_rng(0).integers(
        0, 256, size=(128, 128, 3), dtype=np.uint8
    ),
    np.random.default_rng(1).integers(
        0, 256, size=(128, 128, 3), dtype=np.uint8
    ),
]

eda = ImageEDA(
    verbose=False,
    compute_glcm=False,
    compute_freq=False,
)

eda.load_arrays(
    images,
    labels=["class_a", "class_b"]
)

print(eda.summary()["inventory"])

eda.plot(
    save_path="image_dashboard.png"
)

---

VideoEDA

from viseda import VideoEDA

eda = VideoEDA(
    verbose=True,
    frame_sample_rate=5
)

eda.load(
    "path/to/videos",
    label_from_parent=True
)

summary = eda.summary()

print(summary["inventory"])
print(summary["temporal"])
print(summary["motion"])

eda.plot_dataset(
    save_path="video_dashboard.png"
)

eda.report(
    "viseda_video_report.html"
)

For one video rather than the whole dataset:

eda.plot(
    video_index=0,
    save_path="single_video.png"
)

---

HyperspectralEDA

import numpy as np
from viseda import HyperspectralEDA

# One wavelength value per spectral band
wavelengths = np.load(
    "path/to/wavelengths.npy"
)

eda = HyperspectralEDA(
    wavelengths=wavelengths,
    compute_glcm=False,
    compute_pca=True,
)

# File-backed loading is recommended when using compute_index()
# or pca_scores().
eda.load(
    "path/to/cube.npy"
)

summary = eda.summary()

print(summary["inventory"])
print(summary["spectral_quality"])

ndvi = eda.compute_index(
    cube_index=0,
    index_name="ndvi"
)

scores, variance_ratio = eda.pca_scores(
    cube_index=0,
    n_components=3
)

eda.plot(
    cube_index=0,
    save_path="hyperspectral_cube.png"
)

eda.report(
    "viseda_hyper_report.html"
)

For a directory of hyperspectral cubes:

from viseda import HyperspectralEDA

eda = HyperspectralEDA()

eda.load(
    "path/to/hyperspectral_dataset",
    label_from_parent=True
)

eda.plot_dataset(
    save_path="hyperspectral_dataset.png"
)

Current 1.0.0 note: load_arrays() is suitable for summary and plotting workflows, but compute_index() and pca_scores() reload the selected cube from its source path. Use load() with a file-backed cube when calling those two methods.

---

PointCloudEDA

import numpy as np
from viseda import PointCloudEDA

points = np.random.default_rng(0).random(
    (10000, 3)
).astype("float32")

eda = PointCloudEDA(
    max_points_per_cloud=200000,
    compute_neighbors=True,
    compute_geometry=True,
)

eda.load_arrays(
    [points],
    labels=["sample"]
)

summary = eda.summary()

print(summary["inventory"])
print(summary["geometry"])
print(summary["quality"])

eda.plot_dataset(
    save_path="pointcloud_dashboard.png"
)

eda.report(
    "viseda_pointcloud_report.html"
)

For an individual cloud:

eda.plot(
    cloud_index=0,
    save_path="single_cloud.png"
)

---

TextEDA

from viseda import TextEDA

eda = TextEDA()

eda.load_texts(
    [
        "Exploratory data analysis should come before model training.",
        "TextEDA analyses vocabulary, length, readability and duplicates.",
    ],
    labels=["eda", "eda"],
)

summary = eda.summary()

print(summary["length"])
print(summary["lexical"])

print(
    eda.vocabulary(top_n=10)
)

eda.plot_dataset(
    save_path="text_dashboard.png"
)

eda.report(
    "viseda_text_report.html"
)

TextEDA also supports directory datasets and structured files such as CSV, TSV, JSON, JSONL, Markdown, HTML, and plain text.

---

Command-Line Interface

VisEDA installs a unified command:

viseda --help

Available subcommands:

viseda image ...
viseda video ...
viseda hyper ...
viseda cloud ...
viseda text ...

Image dataset

viseda image "C:/datasets/images" \
    --label-from-parent \
    --plot \
    --report viseda_image_report.html

Video dataset

viseda video "C:/datasets/videos" \
    --label-from-parent \
    --plot \
    --report viseda_video_report.html

Hyperspectral dataset

viseda hyper "C:/datasets/hyper" \
    --label-from-parent \
    --plot \
    --dataset-plot \
    --report viseda_hyper_report.html

Point-cloud dataset

viseda cloud "C:/datasets/pointclouds" \
    --label-from-parent \
    --plot \
    --report viseda_pointcloud_report.html

Text dataset

viseda text "C:/datasets/text" \
    --label-from-parent \
    --plot \
    --report viseda_text_report.html

For command-specific options:

viseda image --help
viseda video --help
viseda hyper --help
viseda cloud --help
viseda text --help

---

HTML Reports

Every VisEDA module can generate a standalone HTML report.

eda.report("report.html")

Reports are designed to provide a portable summary of dataset properties and quality indicators that can be opened directly in a browser.

Typical report sections include:

• dataset inventory
• labels/classes
• spatial or structural statistics
• quality metrics
• modality-specific statistics
• duplicate/similarity information where applicable
• summary distributions
• analysis metadata

---

Visualisation Workflows

The dataset-level dashboard method is module-specific:

# ImageEDA
image_eda.plot()

# VideoEDA
video_eda.plot_dataset()

# HyperspectralEDA
hyper_eda.plot_dataset()

# PointCloudEDA
cloud_eda.plot_dataset()

# TextEDA
text_eda.plot_dataset()

Specialised plotting methods are also available for modality-specific tasks such as:

• sample previews
• colour analysis
• quality analysis
• temporal analysis
• spectral analysis
• PCA analysis
• point-cloud geometry
• vocabulary and n-gram frequency
• pairwise similarity/distance matrices

---

Supported Input Formats

Module	Main supported inputs
ImageEDA	JPG/JPEG, PNG, BMP, TIFF and other supported image formats
VideoEDA	MP4, AVI, MOV, MKV, WEBM, MPEG/MPG, M4V
HyperspectralEDA	NPY, NPZ, MAT, ENVI HDR/BIL/BIP/BSQ/ENVI, TIF/TIFF
PointCloudEDA	NPY, NPZ, TXT, CSV, XYZ, PTS, ASCII PLY, LAS/LAZ
TextEDA	TXT/TEXT, MD, RST, LOG, HTML/HTM, CSV/TSV, JSON, JSONL/NDJSON

Some formats require optional dependencies.

---

Typical Workflow

Raw Dataset
    │
    ▼
Load with VisEDA
    │
    ▼
Dataset Inventory
    │
    ▼
Quality & Distribution Analysis
    │
    ▼
Duplicate / Similarity Checks
    │
    ▼
Visual Diagnostics
    │
    ▼
HTML Report
    │
    ▼
Preprocessing Decisions
    │
    ▼
Model Training

---

Package Structure

viseda/
├── image/
├── video/
├── hyperspectral/
├── pointcloud/
├── text/
├── report/
├── core/
├── utils/
├── cli.py
└── __init__.py

The main classes can be imported directly:

from viseda import (
    ImageEDA,
    VideoEDA,
    HyperspectralEDA,
    PointCloudEDA,
    TextEDA,
)

---

Development

Clone the repository and install in editable mode:

python -m pip install -e ".[dev]"

Run the tests:

python -m pytest

Build a distribution:

python -m pip install --upgrade build twine

python -m build
python -m twine check dist/*

---

Documentation

The VisEDA documentation covers all five modules in detail, including:

• installation
• quick-start workflows
• complete metric explanations
• visualisation interpretation
• Python API
• command-line interface
• HTML reports
• test workflows
• advanced use cases
• troubleshooting
• API reference
• changelog and roadmap

---

Citation

If you use VisEDA in your research, publication, dissertation, thesis, teaching, or software project, please cite the software as follows:

I.O.Agyemang, D. Acheampong, A.A.Baffour, & I. Adjei-Mensah
VisEDA: A Unified Visual Exploratory Data Analysis Toolkit for Image, Video, Hyperspectral, Point Cloud, and Text Data.
GitHub repository: https://github.com/Isaac45/VisEDA

Authors

Isaac Osei Agyemang
Data Science and Big Data Technology, Stirling College, Chengdu University, Chengdu 610054, P.R. China

Daniel Acheampong
Lutgert College, Florida Gulf Coast University, USA

Adu Asare Baffour
School of Science and Engineering, University of Missouri-Kansas City, USA

Isaac Adjei-Mensah
College of Artificial Intelligence, Yango University, Fuzhou 350015, P.R. China
Fujian University Engineering Research Center of Spatial Data Mining and Applications, Yango University, Fuzhou 350015, P.R. China

BibTeX

@software{agyemang_viseda,
  author = {
    Agyemang, Isaac Osei and
    Acheampong, Daniel and
    Baffour, Adu Asare and
    Adjei-Mensah, Isaac
  },
  title = {
    VisEDA: A Unified Exploratory Data Analysis Toolkit for
    Image, Video, Hyperspectral, Point Cloud, and Text Data
  },
  url = {https://github.com/Isaac45/VisEDA},
  note = {Python software library}
}

If a DOI or peer-reviewed VisEDA publication becomes available, this section can be updated with the formal publication details.

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Contributing

Contributions are welcome.

Useful contributions include:

• bug reports
• additional file-format support
• new EDA metrics
• additional visualisations
• documentation improvements
• performance optimisations
• tests and reproducible examples

Before proposing major API changes, please open an issue describing the motivation and expected behaviour.

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License

VisEDA is released under the MIT License.

See LICENSE for details.

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