Threshold (Binarize)

Threshold (Binarize)

Threshold is a binarization effect that simplifies an image into two tones: black and white.
It splits mid-gray areas by a cutoff (threshold): pixels brighter than the threshold become white, and pixels darker become black.
This is useful for logo/icon styling, scan-like effects, and high-contrast looks.

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threshold

Description

Binarizes the image using a threshold value (black & white).

In general:

• A higher threshold tends to classify more pixels as dark (black),
• A lower threshold tends to classify more pixels as bright (white),

but the perceived result can vary depending on the image’s brightness distribution.

Format

?threshold={value}

Supported range

• 0 to 255

Examples

요청	결과
?threshold=180	Binarize to black and white with a threshold of 180.

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Using with other options

• If you want a cleaner and more predictable black/white split, combine it with grayscale=true.

?grayscale=true&threshold=180

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