Which algorithm should I choose?

Use Median for salt & pepper noise, Gaussian for random grain, and Bilateral for preserving sharp edges while smoothing surfaces.

Does increasing the strength blur my image?

Yes, higher strength values remove more noise but can lead to a loss of fine detail. We recommend using the 'Preserve Edges' option to mitigate this.

What is the maximum file size I can upload?

You can upload image files up to 20MB in size.

Can I change the output format?

Yes, you can convert your image to JPEG, PNG, or WebP, or simply keep the original format.

What does the kernel size do?

The kernel size determines the area of pixels analyzed for noise. Larger kernels cover more area, resulting in stronger smoothing.

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Image Noise Reduction

Reduce image noise using multiple algorithms including median, gaussian, and bilateral filtering

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Inputs

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8 options

FilesUpload source files for this workflow.1

Image FilefileRequired

Single file max size: 20 MBSupported types: image/jpeg, image/png, image/webp, image/gif, image/bmp, image/tiff

Upload any image file (JPEG, PNG, WebP, GIF, BMP, TIFF) to reduce noise and improve image quality

SettingsAdjust formats, ranges, numbers, and modes.6

Noise Reduction AlgorithmselectOptionalChoose the denoising algorithm. Median works well for salt & pepper noise, Gaussian for random noiseNoise Reduction StrengthrangeOptional

0.15

Strength of noise reduction. Higher values remove more noise but may blur detailsFilter Kernel SizerangeOptional

325

Size of the filter kernel (must be odd). Larger kernels remove more noise but may blur detailsFilter IterationsnumberOptionalNumber of denoising passes. More iterations = stronger noise reductionOutput FormatselectOptionalChoose output format or keep original. PNG recommended for maximum qualityQuality (1-100)numberOptionalOutput quality for lossy formats (JPEG, WebP). Higher = better quality but larger file size

TogglesEnable or disable optional behavior.1

Preserve EdgescheckboxOptionalEnabled when checkedMaintain edge detail while removing noise. Recommended for photos with important details

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Image Noise Reduction

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1. Fixing Low-Light Smartphone Photos

2. Cleaning Scanned Documents

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