Black and White Image (Two-Tone)
Remove all grayscale levels with interactive threshold control.
How to Convert a Photo to Pure Black and White?
Import
Select the color or grayscale photo you want to process.
Threshold Adjustment
Adjust the threshold slider in real-time to balance the distribution of black and white.
Download
Download your high-definition two-tone rendering, with absolutely no intermediate gray pixels.
Understanding the Image Thresholding Technique
Unlike a standard grayscale filter that preserves thousands of soft shades, this tool applies an absolute mathematical two-tone process. Every pixel of your photo is analyzed based on its luminance: if it exceeds the chosen threshold, it becomes pure white (255); if it falls below, it turns into pure black (0).
This radical graphic method is essential for screen printing artists, stencil creation, laser engraving, or for **preparing an image before clean vectorization** in Illustrator (preventing digital noise). The processing runs offline on your graphics card via the Canvas API for maximum security.
Frequently Asked Questions
What is the difference between grayscale and pure black and white?
A grayscale image contains a palette of 256 shades of gray transitions. A pure black and white (two-tone) image technically only contains two possible color states per pixel: absolute black or absolute white, creating an extreme, high-dynamic contrast.