OpenImageR

1.3.0

An Image Processing Toolkit

10packages depend

56.3Kdownloads / year

82.3%test coverage

9/13checks pass

Overview

About

Maintained by Lampros MouselimisFirst published 2016-07-0731 releasesCRAN page ↗GitHub ↗

Incorporates functions for image preprocessing, filtering and image recognition. The package takes advantage of 'RcppArmadillo' to speed up computationally intensive functions. The histogram of oriented gradients descriptor is a modification of the 'findHOGFeatures' function of the 'SimpleCV' computer vision platform, the average_hash(), dhash() and phash() functions are based on the 'ImageHash' python library. The Gabor Feature Extraction functions are based on 'Matlab' code of the paper, "CloudID: Trustworthy cloud-based and cross-enterprise biometric identification" by M. Haghighat, S. Zonouz, M. Abdel-Mottaleb, Expert Systems with Applications, vol. 42, no. 21, pp. 7905-7916, 2015, doi:10.1016/j.eswa.2015.06.025. The 'SLIC' and 'SLICO' superpixel algorithms were explained in detail in (i) "SLIC Superpixels Compared to State-of-the-art Superpixel Methods", Radhakrishna Achanta, Appu Shaji, Kevin Smith, Aurelien Lucchi, Pascal Fua, and Sabine Suesstrunk, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 34, num. 11, p. 2274-2282, May 2012, doi:10.1109/TPAMI.2012.120 and (ii) "SLIC Superpixels", Radhakrishna Achanta, Appu Shaji, Kevin Smith, Aurelien Lucchi, Pascal Fua, and Sabine Suesstrunk, EPFL Technical Report no. 149300, June 2010.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("OpenImageR", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("mlampros/OpenImageR")

Development version from mlampros/OpenImageR. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-openimager

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-OpenImageR

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-OpenImageR

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

4NOTE9OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc
NOTE r-devel-linux-x86_64-fedora-gcc
NOTE r-devel-windows-x86_64

Slowest check: 4.5 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 1.11

82.3%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

NOTE2026-07-16
10 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
10 OK · 3 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 459 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 88%
Documented parameters: 100%
Return-value docs: 83%
References docs: 13%

Downloads

56.3K

CRAN downloads in the past year

Rank #2,177 · ~154/day · ~4.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

2.1K30 days

10.3K90 days

56.3K1 year

Compare downloads with other packages →

Also on529 r2u29 autocran5.6K conda_forge

Repository

GitHub ↗ mlampros/openimager

61Stars

11Forks

0Open issues

0Open PRs

0Releases

157Commits

2Contributors

imageprocessingfilteringrecognitionrcpparmadillohog-featuresimage-hashingr

157 commits · Last activity 2023-07-08

Stars over time

2025-04-09 · 612026-07-07 · 61

Repository practices

Upstream repositoryBeta

4 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/mlampros/openimager on 2026-07-30.

Continuous integration (2)

GitHub Actionstic

Reproducibility and dev environment (1)

Dockerfile

Governance and community (1)

Issue templates

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

13 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.2.3

Imports (11)

RcppgraphicsgrDevicesgridshiny jpeg png tiff R6 lifecycletools

LinkingTo (2)

Rcpp RcppArmadillo

Suggests (4)

testthat knitr rmarkdown covr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

10direct

0indirect

CNVScope SuperpixelImageSegmentation fastGLCM greenR imagefluency schemr streetscape SuperpixelImageSegmentation fastGLCM ClusterR VMDecomp regtools

Code & Tests

People & History

People (6)

Maintainer (1)

Lampros Mouselimis

Author, Maintainer

Authors (1)

Author, Maintainer

Package Timeline

31 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
1.3.0Latest
2023-07-08 · current release · diff ↗
1.2.9
2023-05-20 · diff ↗
R
R 4.3.0 released · 2023-04-21
1.2.8
2022-12-18 · diff ↗
1.2.7
2022-10-29 · diff ↗
1.2.6
2022-10-01 · diff ↗
1.2.5
2022-08-24 · diff ↗
1.2.4
2022-08-18 · diff ↗
1.2.3
2022-08-08 · diff ↗
1.2.2
2022-06-07 · diff ↗
R
R 4.2.0 released · 2022-04-22
1.2.1
2022-01-27 · diff ↗
1.2.0
2021-09-10 · diff ↗

Show 26 earlier events

1.1.9
2021-05-21 · diff ↗
R
R 4.1.0 released · 2021-05-18
1.1.8
2021-05-04 · diff ↗
1.1.7
2020-06-18 · diff ↗
R
R 4.0.0 released · 2020-04-24
1.1.6
2019-12-02 · diff ↗
R
R 3.6.0 released · 2019-04-26
1.1.5
2019-02-10 · diff ↗
1.1.4
2019-01-07 · diff ↗
1.1.3
2018-12-09 · diff ↗
1.1.2
2018-11-08 · diff ↗
1.1.1
2018-08-22 · diff ↗
1.1.0
2018-08-07 · diff ↗
1.0.9
2018-08-04 · diff ↗
R
R 3.5.0 released · 2018-04-23
1.0.8
2018-01-16 · diff ↗
1.0.7
2017-10-30 · diff ↗
1.0.6
2017-05-06 · diff ↗
R
R 3.4.0 released · 2017-04-21
1.0.5
2017-04-17 · diff ↗
1.0.4
2017-02-11 · diff ↗
1.0.3
2017-01-07 · diff ↗
1.0.2
2016-07-11 · diff ↗
1.0.1
2016-07-09 · diff ↗
1.0
2016-07-07
R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2016-07-07
Total releases: 31 / 10 yrs
License: GPL-3 OSI
Minimum R: ≥ 3.2.3
Download size: 3.6 MB
Installed size: not tracked yet
With dependencies: not tracked yet

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