What you need
Choose one authorised JPEG, PNG, or WebP still image up to 20 MB and 12 million decoded pixels. Animated frames are not processed.
Image Tools / Local studio
Sort contiguous qualifying row pixels by luminance above an adjustable threshold while preserving RGBA pixel tuples.
Step 1 / Source
Or browse for a JPEG, PNG, or WebP image that you own or are authorised to edit.
One file · up to 20 MB · maximum 50 megapixelsStep 2 / Output
Choose a decoded-luminance threshold from 0 to 255; only contiguous pixels meeting or exceeding it join a sorted run.
The selected image is decoded and re-encoded inside this browser tab.
After download, the preview URL, decoded bitmap, canvas, and selected source reference are cleared.
Nirmion cannot remove the finished file from your device or browser download history.
Workflow guide
Choose one authorised JPEG, PNG, or WebP still image up to 20 MB and 12 million decoded pixels. Animated frames are not processed.
Create an intentional data-bend derivative while checking where protected dark regions interrupt each horizontal sorted run.
Download a separate threshold-bounded pixel-sort PNG; the original file on your device remains unchanged.
Decision guide
Each row is split into contiguous runs at or above the selected decoded-luminance threshold, then complete RGBA tuples are sorted from dark to light.
The operation is deterministic row sorting, not corruption recovery, compression glitch emulation, object-aware masking, or random displacement. Browser-local processing avoids a Nirmion file upload, but it cannot remove copies stored elsewhere.
MDN Canvas pixel manipulationGood to know
Questions answered
No. Supported JPEG, PNG, and WebP decoding, pixel inspection, transformation, and export run in your current browser tab. Nirmion does not send the selected image to its API for this workflow. The result is a separate derivative or JSON report, while the original file on your device remains unchanged and should be retained for comparison.
Each row is split into contiguous runs at or above the selected decoded-luminance threshold, then complete RGBA tuples are sorted from dark to light. Fully transparent samples are excluded from numerical reports, while visual effects preserve source alpha. The method does not infer subjects, restore missing detail, calibrate a display, or develop raw camera data. Compare edges, gradients, text, texture, and transparent areas with the original before relying on the result.
The operation is deterministic row sorting, not corruption recovery, compression glitch emulation, object-aware masking, or random displacement. The workspace accepts one supported still image up to 20 MB and caps this pixel-intensive operation at 12 million decoded pixels for predictable browser memory use. Results depend on browser decoding and encoding support. Animation, raw development, ICC calibration, layer editing, and batch processing are outside this tool's verified scope.