Low Pass Filter

Apply low pass filter to smooth images and reduce noise with adjustable blur algorithms

Image File *

Click to upload file or drag and drop file here

Maximum file size: 20MB Supported formats: image/jpeg, image/png, image/webp, image/gif, image/bmp, image/tiff

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

Blur Algorithm

Choose the blur algorithm. Gaussian works well for most images

Blur Radius

0.1 1.5 20

Radius of the blur effect. Higher values create stronger smoothing

Blur Strength

0.1 0.4 3

Strength of the blur effect. Higher values apply more aggressive smoothing

Blur Iterations

Number of blur passes. More iterations = smoother result

Preserve Edges

Maintain edge detail while smoothing flat areas

Channel Processing

Choose which color channels to process

Output Format

Choose output format or keep original. PNG recommended for maximum quality

Quality (1-100)

Output quality for lossy formats (JPEG, WebP). Higher = better quality but larger file size

API Documentation

Request Endpoint

POST /en/api/tools/image-low-pass

Request Parameters

Parameter Name	Type	Required	Description
imageFile	file (Upload required)	Yes	Upload any image file (JPEG, PNG, WebP, GIF, BMP, TIFF) to smooth and reduce noise
algorithm	select	No	Choose the blur algorithm. Gaussian works well for most images
radius	range	No	Radius of the blur effect. Higher values create stronger smoothing
strength	range	No	Strength of the blur effect. Higher values apply more aggressive smoothing
iterations	number	No	Number of blur passes. More iterations = smoother result
preserveEdges	checkbox	No	Maintain edge detail while smoothing flat areas
channels	select	No	Choose which color channels to process
format	select	No	Choose output format or keep original. PNG recommended for maximum quality
quality	number	No	Output quality for lossy formats (JPEG, WebP). Higher = better quality but larger file size

File type parameters need to be uploaded first via POST /upload/image-low-pass to get filePath, then pass filePath to the corresponding file field.

Response Format

{
  "filePath": "/public/processing/randomid.ext",
  "fileName": "output.ext",
  "contentType": "application/octet-stream",
  "size": 1024,
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}

File: File

AI MCP Documentation

Add this tool to your MCP server configuration:

{
  "mcpServers": {
    "elysiatools-image-low-pass": {
      "name": "image-low-pass",
      "description": "Apply low pass filter to smooth images and reduce noise with adjustable blur algorithms",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=image-low-pass",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

Supports URL file links or Base64 encoding for file parameters.

If you encounter any issues, please contact us at [email protected]