Spatial Denoise | 555Tools — Online Tools for FPGA & Algorithm Engineers

Image AlgorithmsTool Introduction

Spatial Denoise provides three classic spatial denoising methods for comparison: Median filter excels at removing salt-and-pepper noise with good edge preservation; Gaussian filter is the standard for Gaussian noise removal but blurs edges; Bilateral filter smooths while keeping edges sharp. Supports kernel size, spatial sigma, range sigma, and strength controls.

Key Formula / Principle

Median: out = median(K×K neighborhood)
Gaussian: out = Σ(G(σ_s)·pixel) / Σ(G(σ_s))
Bilateral: out = Σ(G(σ_s)·exp(-ΔI²/2σ_r²)·pixel) / Σ(weights)

Data Processed Locally|All computations run in your browser. Images, formulas, state machine definitions, and any other input data are never sent to any server.

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