# Curves

> Tone curves for RGB and each color channel, drawn over a live histogram.

```tsx
"use client";

import { ImageEditorProvider } from "photocn/react";

import { ImageEditorCanvas } from "@/components/image-editor/canvas";
import { ImageEditorCurves } from "@/components/image-editor/curves-panel";

export default function CurvesDemo() {
  return (
    <ImageEditorProvider src="/samples/street.jpg">
      <div className="grid h-[520px] grid-rows-[1fr_auto] overflow-hidden rounded-xl border bg-background sm:grid-cols-[1fr_300px] sm:grid-rows-1">
        <ImageEditorCanvas className="min-h-0 p-2" />
        <aside className="max-h-60 overflow-y-auto border-t sm:max-h-none sm:border-t-0 sm:border-l">
          <ImageEditorCurves />
        </aside>
      </div>
    </ImageEditorProvider>
  );
}
```

## Installation

```bash
npx shadcn@latest add @photocn/image-editor-curves
```

## Usage

```tsx
import { ImageEditorCurves } from "@/components/image-editor/curves-panel";


```

## Props

| Prop | Type | Description |
| --- | --- | --- |
| `activeChannel` | `"rgb" \| "r" \| "g" \| "b"` | The channel being edited. |
| `size` | `number` | Size of the curve area in px. |
| `histogram` | `RgbHistogram \| null` | Override the histogram behind the curve. |