R Observatory: Metrics for imagerExtra version 1.3.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

imagerExtra

1.3.2Package record

Extra Image Processing Library Based on 'imager'

0packages dependsuggested by 1

4.1Kdownloads / year

60.8%test coverage

11/13flavors OK

Overview

About

Maintained by Shota OchiCRAN page ↗GitHub ↗Issues ↗

Provides advanced functions for image processing based on the package 'imager'.

Install

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

install.packages("imagerExtra", 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("ShotaOchi/imagerExtra")

Development version from ShotaOchi/imagerExtra. 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-imagerextra

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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-imagerExtra

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

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

Health

CRAN checks

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Shota Ochi <shotaochi1990@gmail.com>’

Found the following URLs which should use \doi (with the DOI name only):
  File ‘BalanceSimplest.Rd’:
    https://doi.org/10.5201/ipol.2011.llmps-scb
  File ‘DenoiseDCT.Rd’:
    https://doi.org/10.5201/ipol.2011.ys-dct
  File ‘EqualizePiecewise.Rd’:
    https://doi.org/10.5201/ipol.2012.lps-pae
  File ‘SPE.Rd’:
    https://doi.org/10.5201/ipol.2014.84

CRAN check page ↗

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

Status changes

NOTE11 OK, 2 NOTE2026-06-09
ERROR11 OK, 1 NOTE, 1 ERROR2026-06-08
NOTE12 OK, 2 NOTE2026-04-22
ERROR11 OK, 2 NOTE, 1 ERROR2026-04-18
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.3.2

README· In the repository, left out of the releaseVignettesYes · 3 · dynamicNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 19includes a package overview page
Examples that run: 100%16 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 94%
Help pages citing references: 63%

Vignettes (3)

How these are measured

Downloads

4.1K

CRAN downloads in the past year

Rank #10,427 · ~11/day · ~344/mo

Releases R versions

Daily download trend is not available in this view yet.

33330 days

99490 days

4.1K1 year

Compare downloads with other packages →

Also on554 r2u

How downloads are counted

Repository

shotaochi/imagerextra ↗Account: ShotaOchi

12Stars

0Forks

0Open issues

0Open PRs

0Releases

226Commits

3Commit identities

rimagerimage-processing

License file reads as GPL-3.0 · 226 commits · Last activity 2023-01-04 · 0% stars, 30d · Default branch at 2.0.0, ahead of CRAN 1.3.2 (checked 2026-10-21)

Responsiveness

How these are sampled

PRs merged (all time): 67%
Median days to close, 50 most recently updated closed issues: 4
Median days to close, 50 most recently updated closed PRs: 1

Stars over time

2024-08-01 · 112026-07-07 · 12

How these are measured

PracticesBeta

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

Checks run against github.com/shotaochi/imagerextra on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Coverage (1)

Coverage reporting

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

9 external dependencies (excludes base and recommended)

Installing imagerExtra adds 22 packages (15 with compiled code, 26 MB of source tarballs). Heaviest: stringi 11 MB, igraph 4.8 MB, imager 4.3 MB.

Depends (2)

R >= 2.10.0imager

Imports (3)

fftwtools magrittr Rcpp

LinkingTo (1)

Rcpp

Suggests (4)

testthat knitr rmarkdown tesseract

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Suggested by 1

Suggests, most downloaded first

biopixR

How these are counted

Code & Tests

Datasets

People & History

People (6)

Shota Ochi

Author, Maintainer since 1.0 (2018)

Pascal Getreuer

Contributor, Copyright holder · added in 1.3.0

Guillermo Sapiro

Contributor, Copyright holder

Catalina Sbert

Contributor, Copyright holder

Guoshen Yu

Contributor, Copyright holder

Image Processing On Line

Copyright holder

Releases (7)

Pick two releases to compare their code metrics.

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
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
unarchivedReturned to CRAN
2019-01-25
1.3.2Latest
record
2019-01-25 · current release · diff ↗
archivedRemoved from CRAN
2019-01-23
policy violation
1.3.1
record
2019-01-11 · diff ↗
1.3.0
record
2018-11-28 · diff ↗ ·
added 5 exports
EqualizeADP, EqualizeDP, SegmentCV, ThresholdFuzzy, ThresholdML
1.2.0
record
2018-07-22 · diff ↗ ·
added 5 exports
DCT2D, IDCT2D, OCR, OCR_data, ThresholdAdaptive
1.1.1
record
2018-07-03 · diff ↗
1.1.0
record
2018-07-01 · diff ↗ ·
added 4 exports
GetHue, Grayscale, RestoreHue, ThresholdTriclass

Show 2 earlier eventsHide 2 earlier events

1.0
record
2018-05-29
R
R 3.5.0 released · 2018-04-23

Package metadata

First published: 2018-05-29
Total releases: 7 / 8 yrs
License: GPL-3 OSI
Minimum R: ≥ 2.10.0
Bundled data: 144 KB / 2 files
Download size: 465 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("imagerExtra")

Format

Ochi, S., Image Processing On Line, Getreuer, P., Sapiro, G., Sbert, C., & Yu, G. (2019). imagerExtra: Extra Image Processing Library Based on 'imager' (Version 1.3.2) [Computer software]. https://doi.org/10.32614/CRAN.package.imagerExtra

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for imagerExtra version 1.3.2 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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