Original
A preview appears here after you choose an image.
Image / Local tool
Image Edge Detector
Measure Sobel gradient magnitude on luminance to expose edges regardless of their direction. Processing stays in this browser, the original file is never uploaded, and exported pixels contain no source metadata.
Choose images to begin.
Download resultDownload all results
Analysis report
◎ Images are never uploaded; Canvas re-encodes exports without original metadata.
Result
A preview appears here after you choose an image.
How to useHow to use Image Edge Detector ⌄
Measure Sobel gradient magnitude on luminance to expose edges regardless of their direction. Processing stays in this browser, the original file is never uploaded, and exported pixels contain no source metadata.
- 1
Paste content, enter parameters or choose the files you need in “Choose an image”.
- 2
Choose “Edge gain” for the job. Processing runs in this browser.
- 3
Review the result under “Result”, then copy or download it after checking the output.
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