Description
Optimize and compress images using 'Rust' libraries to reduce file sizes while maintaining image quality. Supports PNG palette reduction and dithering via the 'exoquant' crate before lossless PNG optimization via the 'oxipng' crate. The package provides functions to optimize individual image files or entire directories, with configurable compression levels.
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CRAN Check Status
6
NOTE
8
OK
Show all 14 flavors
| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | NOTE |
| r-devel-linux-x86_64-debian-gcc | NOTE |
| r-devel-linux-x86_64-fedora-clang | NOTE |
| r-devel-linux-x86_64-fedora-gcc | NOTE |
| r-devel-macos-arm64 | OK |
| r-devel-windows-x86_64 | NOTE |
| r-oldrel-macos-arm64 | OK |
| r-oldrel-macos-x86_64 | OK |
| r-oldrel-windows-x86_64 | OK |
| r-patched-linux-x86_64 | NOTE |
| r-release-linux-x86_64 | OK |
| r-release-macos-arm64 | OK |
| r-release-macos-x86_64 | OK |
| r-release-windows-x86_64 | OK |
Check details (6 non-OK)
NOTE
r-devel-linux-x86_64-debian-clang
compiled code
File ‘tinyimg/libs/tinyimg.so’: Found non-API call to R: ‘R_UnboundValue’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
NOTE
r-devel-linux-x86_64-debian-gcc
compiled code
File ‘tinyimg/libs/tinyimg.so’: Found non-API call to R: ‘R_UnboundValue’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
NOTE
r-devel-linux-x86_64-fedora-clang
compiled code
File ‘tinyimg/libs/tinyimg.so’: Found non-API call to R: ‘R_UnboundValue’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
NOTE
r-devel-linux-x86_64-fedora-gcc
compiled code
File ‘tinyimg/libs/tinyimg.so’: Found non-API call to R: ‘R_UnboundValue’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
NOTE
r-devel-windows-x86_64
compiled code
File 'tinyimg/libs/x64/tinyimg.dll': Found non-API calls to R: 'R_MissingArg', 'R_UnboundValue' Compiled code should not call non-API entry points in R. See 'Writing portable packages' in the 'Writing R Extensions' manual, and section 'Moving into C API compliance' for issues with the use of non-API entry points.
NOTE
r-patched-linux-x86_64
compiled code
File ‘tinyimg/libs/tinyimg.so’: Found non-API calls to R: ‘R_MissingArg’, ‘R_UnboundValue’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.
Check History
NOTE 13 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 27, 2026
NOTE
r-devel-linux-x86_64-debian-gcc
compiled code
File ‘tinyimg/libs/tinyimg.so’: Found non-API calls to R: ‘R_MissingArg’, ‘R_UnboundValue’ Compiled code should not call non-API entry points in R. See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual, and section ‘Moving into C API compliance’ for issues with the use of non-API entry points.