Support

Contact maga40@naver.com with your Android and Halvane versions. Avoid sending confidential images unless you intend to share them.

Import a working image

Choose a PNG, JPEG or HEIC through Android Files, under30 MB and50 million pixels. Working dimensions must remain at least32 pixels after resizing. Android decodes the image orientation and primary still image into an opaque sRGB PNG, flattening transparency to white. Longest working edge:2048 pixels. Keep the original separately; original files and metadata are not preserved as an original-resolution backup.

Select and compare

The source spectrum uses the RGB average and a complex2D FFT with mirrored padding. Tap isolated bright peaks; each conjugate pair is applied automatically. Center radius0.035 is protected. Use suggestions as starting points and inspect the result. Up to8 pairs, strength0–100%, normalized selection width2–25‰. Apply adjustment updates saved settings and the result. Pending slider values do not change the saved result until applied. Undo retains20 treatment edits in the current session.

Saved work

20 projects and400 MB of private working PNGs. Each image can retain20 named treatments. Treatments belong to that image’s frequency map. Deleting a project removes its index entry and working image; failed cleanup can be retried from Help. Renaming, treatments and parameters are saved locally. Some validation and output documentation remain English.

Files

Save Cleaned PNG, Comparison PNG, source Spectrum PNG and Settings JSON separately or save a ZIP containing Cleaned.png, Comparison.png, Spectrum.png, Settings.json and Readme.txt. The output package is not an editable-project restore backup. Settings include the current working-source hash and saved treatments. A file save does not verify delivery to a recipient.

Recovery

Unreadable indexes are preserved and normal writes blocked. Save the exact unreadable copy before resetting links. Reset creates an empty index and retains private working images until you retry cleanup. It does not repair files or automatically restore projects. Clearing cached exports preserves saved projects and external copies.