LucadenFree online toolsBrowse toolsPrivate image effect
Invert the red, green, and blue channels of an image locally while preserving alpha and exporting a PNG copy.
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How it works
Important
Keep an untouched copy of important source files. Browser processing depends on available device memory, and you should inspect every downloaded result before deleting the original.
Practical details
Invert the red, green, and blue channels of an image locally while preserving alpha and exporting a PNG copy.
Color inversion does not automatically create an accessible dark mode and can produce unexpected brand or skin colors. Review the full result.
Lucaden adds a focused workflow, conservative memory limits, before-and-after preview, privacy checks, and exact attribution.
Questions
No. Browser Canvas decodes and exports the image in memory, while the pinned Jimp effect modules change its pixels locally.
Color inversion does not automatically create an accessible dark mode and can produce unexpected brand or skin colors. Review the full result.
Jimp 1.6.1 (MIT) performs the deterministic pixel operation; the browser's Canvas API performs PNG export. The upstream project retains its name, copyright, and license.
Open-source foundations
Lucaden documents its standards sources, architectural references, and permissive runtime dependencies while keeping this workspace consistent with the Lucaden interface.