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Image Gamma Correction

Apply gamma correction to adjust image brightness non-linearly for better visual perception

Click to upload file or drag and drop file here

Maximum file size: 10MB Supported formats: image/jpeg, image/png, image/webp, image/gif, image/bmp, image/tiff

Upload any image file (JPEG, PNG, WebP, GIF, BMP, TIFF) for gamma correction

0.1 1 3

Gamma correction (0.1 = darker, 1.0 = original, 3.0 = brighter)

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

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

Key Facts

Category
Design
Input Types
file, range, select, number
Output Type
file
Sample Coverage
4
API Ready
Yes

Overview

Image Gamma Correction allows you to non-linearly adjust the brightness of your photos, ensuring that mid-tones are balanced correctly for optimal visual perception without washing out highlights or crushing shadows.

When to Use

  • •Correcting images that appear too dark or washed out due to improper exposure settings.
  • •Adjusting the luminance of mid-tones to improve detail visibility in shadows.
  • •Preparing images for display on different monitors to ensure consistent brightness levels.

How It Works

  • •Upload your image file (JPEG, PNG, WebP, GIF, BMP, or TIFF).
  • •Adjust the Gamma Value slider: values below 1.0 darken the image, while values above 1.0 brighten it.
  • •Select your preferred output format and quality settings.
  • •Process the image and download the corrected version.

Use Cases

Restoring detail in underexposed photographs.
Balancing image brightness for consistent web design assets.
Fine-tuning image contrast for better print output.

Examples

1. Fixing Underexposed Photos

Photographer
Background
A series of landscape photos were taken in low-light conditions, resulting in dark mid-tones.
Problem
The images look too dark, hiding important details in the shadows.
How to Use
Upload the image and set the Gamma Value to 1.5 to lift the mid-tones.
Example Config
gamma: 1.5, format: PNG
Outcome
The mid-tones are brightened, revealing hidden details without overexposing the highlights.

2. Optimizing Web Graphics

Web Designer
Background
A set of PNG icons appears too bright when displayed on a dark website background.
Problem
The icons lack depth and contrast against the dark UI.
How to Use
Upload the icons and apply a Gamma Value of 0.8 to darken the mid-tones.
Example Config
gamma: 0.8, format: WebP, quality: 90
Outcome
The icons appear richer and integrate better with the dark theme of the website.

Try with Samples

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FAQ

What is gamma correction?

It is a non-linear operation used to encode and decode luminance in images, effectively adjusting the brightness of mid-tones.

How does the gamma value affect my image?

A value of 1.0 is the original. Values below 1.0 make the image darker, and values above 1.0 make the image brighter.

Which output format should I choose?

PNG is recommended for maximum quality, though you can choose JPEG or WebP if you need to optimize for file size.

Does this tool change the resolution of my image?

No, this tool only adjusts the brightness levels and does not alter the dimensions or resolution of your file.

Is there a limit to the file size I can upload?

Yes, the maximum supported file size for processing is 10 MB.

API Documentation

Request Endpoint

POST /en/api/tools/image-gamma-correction

Request Parameters

Parameter Name Type Required Description
imageFile file (Upload required) Yes Upload any image file (JPEG, PNG, WebP, GIF, BMP, TIFF) for gamma correction
gamma range No Gamma correction (0.1 = darker, 1.0 = original, 3.0 = brighter)
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-gamma-correction 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-gamma-correction": {
      "name": "image-gamma-correction",
      "description": "Apply gamma correction to adjust image brightness non-linearly for better visual perception",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=image-gamma-correction",
      "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]