Threshold Image Converter
Turn a photo or graphic into pure black and white pixels with an adjustable luminance threshold and optional inversion.
Upload an image to create a two-color black and white threshold result.
Pure black and white
Every visible pixel becomes either zero or 255 instead of grayscale.
Adjustable cutoff
Control which luminance values become white with a 0 to 255 threshold.
One-click inversion
Swap black and white without changing the source image.
它是如何运作的
- 1
上传图片
Choose a photo, scan, logo, or graphic from your device.
- 2
Tune the effect
Adjust the main control and optional inversion or dithering.
- 3
下载PNG
Save the processed result at the source pixel dimensions.
Choosing a threshold level
Start near 128, then lower the threshold to make more pixels white or raise it to make more pixels black. High-contrast source images give clearer silhouettes, logos, and stencil-style results.
常见问题
Does thresholding create grayscale?
No. The output contains pure black and pure white pixels.
What does Invert do?
It swaps the black and white output values.
我的图片上传了吗？
不会。您的图像会保留在您的浏览器中。
Threshold Image Converter last reviewed: Aug 2, 2026.