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>.
| Version: | 0.1.1 |
| Imports: | ctypesio |
| Suggests: | knitr, rmarkdown, ggplot2, testthat (≥ 3.0.0) |
| Published: | 2024-10-28 |
| DOI: | 10.32614/CRAN.package.picohdr |
| Author: | Mike Cheng [aut, cre, cph] |
| Maintainer: | Mike Cheng <mikefc at coolbutuseless.com> |
| BugReports: | https://github.com/coolbutuseless/picohdr/issues |
| License: | MIT + file LICENSE |
| Copyright: | The included images in the 'inst/image' directory were
created by the package author (Mike Cheng) and are licensed
under CC0 1.0. See 'COPYRIGHTS' file for more details. picohdr copyright details |
| URL: | https://github.com/coolbutuseless/picohdr |
| NeedsCompilation: | yes |
| Materials: | NEWS |
| CRAN checks: | picohdr results |
| Reference manual: | picohdr.pdf |
| Vignettes: |
Introduction (source, R code) Tone Mapping (source, R code) |
| Package source: | picohdr_0.1.1.tar.gz |
| Windows binaries: | r-devel: picohdr_0.1.1.zip, r-release: not available, r-oldrel: picohdr_0.1.1.zip |
| macOS binaries: | r-release (arm64): picohdr_0.1.1.tgz, r-oldrel (arm64): picohdr_0.1.1.tgz, r-release (x86_64): picohdr_0.1.1.tgz, r-oldrel (x86_64): picohdr_0.1.1.tgz |
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