picohdr

Read, Write and Manipulate High Dynamic Range Images

v0.1.1 · Oct 28, 2024 · MIT + file LICENSE

Description

High Dynamic Range (HDR) images support a large range in luminosity between the lightest and darkest regions of an image. To capture this range, data in HDR images is often stored as floating point numbers and in formats that capture more data and channels than standard image types. This package supports reading and writing two types of HDR images; PFM (Portable Float Map) and OpenEXR images. HDR images can be converted to lower dynamic ranges (for viewing) using tone-mapping. A number of tone-mapping algorithms are included which are based on Reinhard (2002) "Photographic tone reproduction for digital images" <doi:10.1145/566654.566575>.

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CRAN Check Status

11 NOTE

3 OK

Show all 14 flavors

Flavor	Status	Time
r-devel-linux-x86_64-debian-clang	NOTE	54.4s
r-devel-linux-x86_64-debian-gcc	NOTE	41.8s
r-devel-linux-x86_64-fedora-clang	NOTE	82.8s
r-devel-linux-x86_64-fedora-gcc	NOTE	97s
r-devel-macos-arm64	NOTE	23s
r-devel-windows-x86_64	NOTE	102s
r-oldrel-macos-arm64	OK
r-oldrel-macos-x86_64	OK	98s
r-oldrel-windows-x86_64	OK	102s
r-patched-linux-x86_64	NOTE	52.2s
r-release-linux-x86_64	NOTE	50.5s
r-release-macos-arm64	NOTE
r-release-macos-x86_64	NOTE	83s
r-release-windows-x86_64	NOTE	93s

Check details (11 non-OK)

NOTE r-devel-linux-x86_64-debian-clang

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-linux-x86_64-debian-gcc

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-linux-x86_64-fedora-clang

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-linux-x86_64-fedora-gcc

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-macos-arm64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-windows-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    'exr-read.R' 'exr-types-read.R' 'exr-write.R' 'utils.R'

NOTE r-patched-linux-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-release-linux-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-release-macos-arm64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-release-macos-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-release-windows-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    'exr-read.R' 'exr-types-read.R' 'exr-write.R' 'utils.R'

Check History

NOTE 3 OK · 11 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

NOTE r-devel-linux-x86_64-debian-clang

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-linux-x86_64-debian-gcc

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-linux-x86_64-fedora-clang

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-linux-x86_64-fedora-gcc

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-macos-arm64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-devel-windows-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    'exr-read.R' 'exr-types-read.R' 'exr-write.R' 'utils.R'

NOTE r-patched-linux-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-release-linux-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-release-macos-arm64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-release-macos-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    ‘exr-read.R’ ‘exr-types-read.R’ ‘exr-write.R’ ‘utils.R’

NOTE r-release-windows-x86_64

DESCRIPTION meta-information

Missing dependency on R >= 4.1.0 because package code uses the pipe
  |> or function shorthand \(...) syntax added in R 4.1.0.
  File(s) using such syntax:
    'exr-read.R' 'exr-types-read.R' 'exr-write.R' 'utils.R'

Dependency Network

Version History

new 0.1.1 Mar 10, 2026