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Saturation Adjustment

Adjust the colour saturation of an image

GET 10 credits /v1/image/adjust/saturation

curl "https://image.toolkitapi.io/v1/image/adjust/saturation?url=https://toolkitapi.io/static/samples/sample-image.png&factor=1.3&format=jpeg"

import httpx

resp = httpx.get(
    "https://image.toolkitapi.io/v1/image/adjust/saturation?url=https://toolkitapi.io/static/samples/sample-image.png&factor=1.3&format=jpeg",
)
print(resp.json())

const resp = await fetch("https://image.toolkitapi.io/v1/image/adjust/saturation?url=https://toolkitapi.io/static/samples/sample-image.png&factor=1.3&format=jpeg", {
});
const data = await resp.json();
console.log(data);

# See curl example

Response 200 OK

{
  "image": "/9j/4AAQSkZJRgABAQ...(base64 data)...",
  "format": "jpeg",
  "factor": 1.3
}

Try It Live

Description

Adjust the colour saturation of an image

How to Use

1

1. Provide the source image via the `url` query parameter.

2

2. Set the `factor` parameter to control the adjustment intensity (1.0 = no change).

3

3. Choose your preferred output `format` (png, jpeg, or webp) and `quality` level.

About This Tool

Use the Saturation Adjustment endpoint to make colours more vivid or more muted. A factor of 1.0 leaves colours unchanged, 0.0 produces grayscale, and values above 1.0 boost colour intensity up to 5.0.

This is valuable for photo editing, creating desaturated or hyper-colourful effects, and normalising colour intensity across a batch of images. The adjustment uses PIL's Color enhancer for perceptually smooth results.

Why Use This Tool

Photo enhancement — Add vibrancy to dull or washed-out photos
Muted aesthetics — Create desaturated, editorial-style images
Batch normalisation — Even out colour intensity across product photo sets
Social media — Make food and travel photos pop with extra saturation

Frequently Asked Questions

How is this different from the grayscale filter?

Setting saturation to 0.0 produces a similar grayscale result, but this endpoint lets you choose any level of partial desaturation (e.g. 0.5 for muted tones).

What factor makes colours pop without looking unnatural?

A factor of 1.2–1.5 typically adds pleasant vibrancy. Above 2.0, colours may look oversaturated or cartoonish.

Does this work on already grayscale images?

Technically yes, but increasing saturation on a true grayscale image won't add colour — there's no colour information to enhance.

Start using Saturation Adjustment now

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