> For the complete documentation index, see [llms.txt](https://docs.viesus.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.viesus.com/features/features/global-color-correction.md).

# Global Color Correction

Removes color casts and restores natural, balanced tones. These corrections are applied **globally**, across the entire image — as opposed to the targeted, per-zone adjustments in [Local Color Correction](/features/features/local-color-correction.md).

## Example

{% columns %}
{% column %}
**Original**

<figure><img src="https://919968377-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FG3eQlcnlDKtn9yl3mxsx%2Fuploads%2Fgit-blob-1fba1e4cfc1361f7b652682a410e6bdbc35e7c21%2FDSC_6558.jpg?alt=media" alt="Before — Color Correction"><figcaption><p>Shot through a car window with a green cast</p></figcaption></figure>
{% endcolumn %}

{% column %}

{% endcolumn %}
{% endcolumns %}

{% columns %}
{% column %}
**Before**

<figure><img src="https://919968377-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FG3eQlcnlDKtn9yl3mxsx%2Fuploads%2Fgit-blob-9d3f91e1e7f34969712b17ffe68c7b76d6c6416a%2FDSC_6558_viesus_vscene_no_cc.jpg?alt=media" alt="Before — Color Correction"><figcaption><p>Enhanced by VIESUS with <code>ccstrength = 0.0</code></p></figcaption></figure>
{% endcolumn %}

{% column %}
**After**

<figure><img src="https://919968377-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FG3eQlcnlDKtn9yl3mxsx%2Fuploads%2Fgit-blob-6a00885b429d9dc8eaf21f51079357499b1431eb%2FDSC_6558_viesus_vscene.jpg?alt=media" alt="After — Color Correction"><figcaption><p>Enhanced by VIESUS with <code>ccstrength = 0.5</code></p></figcaption></figure>
{% endcolumn %}
{% endcolumns %}

## Parameters

<table><thead><tr><th width="123.2000732421875">Parameter</th><th width="100">Section</th><th width="95">Range</th><th width="95">Default</th><th>Description</th></tr></thead><tbody><tr><td><code>ccstrength</code></td><td><code>Gpars</code></td><td>0.0 – 1.0</td><td>0.5</td><td>Automatic color correction strength</td></tr><tr><td><code>r</code></td><td><code>Gpars</code></td><td>-1.0 – 1.0</td><td>0.0</td><td>Manual red channel balance</td></tr><tr><td><code>g</code></td><td><code>Gpars</code></td><td>-1.0 – 1.0</td><td>0.0</td><td>Manual green channel balance</td></tr><tr><td><code>b</code></td><td><code>Gpars</code></td><td>-1.0 – 1.0</td><td>0.0</td><td>Manual blue channel balance</td></tr><tr><td><code>brightness</code></td><td><code>Gpars</code></td><td>-1.0 – 1.0</td><td>0.0</td><td>Manual global brightness adjustment</td></tr><tr><td><code>contrast</code></td><td><code>Gpars</code></td><td>-1.0 – 1.0</td><td>0.0</td><td>Manual global contrast adjustment</td></tr><tr><td><code>saturation</code></td><td><code>Gpars</code></td><td>-1.0 – 1.0</td><td>0.0</td><td>Manual global saturation adjustment</td></tr></tbody></table>

{% hint style="warning" %}
The manual channel and tone adjustments (`r`, `g`, `b`, `brightness`, `contrast`, `saturation`) are static and applied **at the end** of automatic processing, regardless of the analysis result. Adjust carefully — they can override otherwise correct automatic behavior. `ccstrength` is automatic and not affected.
{% endhint %}

{% hint style="success" %}
**Recommended:** Keep `ccstrength` at default with Base Enhancement on. Reduce it for images that should retain a deliberate color cast.
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.viesus.com/features/features/global-color-correction.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.