Artwork Alpha to Hard Mask PNG

Extract artwork opacity into opaque grayscale, then apply a chosen cutoff to create a complete binary mask PNG.

Processing stays in your browser; code and assets download as needed. Original and checkpoint downloads retain source content, including omitted values. Reset and Exit stop this session’s owned work; they do not establish secure erasure or anonymity.

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About this flow

Extract artwork opacity into opaque grayscale, then apply a chosen cutoff to create a complete binary mask PNG.

Limitations

One static PNG up to20MiB/4MP/8192pixels per side. Alpha extraction writes stored opacity into opaque grayscale; fixed alpha channel ignores source RGB. Cutoff0–255 discards partial opacity/antialiasing into opaque black or white pixels. This is not automatic object segmentation or a guarantee of1-bit PNG encoding. No enlargement or physical fabrication/print claim. Generated stages must fit20MiB/24MP/16384side. Original download retains source metadata; encoded outputs omit source EXIF/XMP/text. Not anonymity or secure erasure.