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Image / Local tool
Black and White Threshold Tool
Convert an image into pure black and white pixels using an adjustable luminance threshold with no grayscale values.
Choose an image to begin.
Download resultProcessed result
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How to useHow to use Black and White Threshold Tool ⌄
What the tool actually does
Convert an image into pure black and white pixels using an adjustable luminance threshold with no grayscale values.
Reproducible example
Example inputExample file: product-photo.png (1600 × 1200)
luminance threshold = 128The browser recalculates pixels using this rule: Convert an image into pure black and white pixels using an adjustable luminance threshold with no grayscale values. After checking the preview, download black-white.png; the source file is not overwritten.
- 1
Choose product-photo.png and confirm its dimensions and format first. JPEG, PNG or WebP; up to 30 MB and 8 megapixels.
- 2
Use the tool's actual settings (luminance threshold = 128). The processor performs only this operation: Convert an image into pure black and white pixels using an adjustable luminance threshold with no grayscale values.
- 3
Compare source and result around the affected areas, transparent edges and transitions before downloading black-white.png.
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