# `Image.Options.ChromaKey`
[🔗](https://github.com/elixir-image/image/blob/v0.65.0/lib/image/options/chroma_key.ex#L1)

Options and option validation for `Image.chroma_key/2`.

# `chroma_key_options`

```elixir
@type chroma_key_options() ::
  [
    color: Image.Pixel.t() | :auto,
    threshold: non_neg_integer(),
    greater_than: Image.Pixel.t(),
    less_than: Image.Pixel.t(),
    sigma: float(),
    min_amplitude: float()
  ]
  | map()
```

Options applicable to Image.chroma_key/2

# `validate_options`

Validate the options for `Image.chroma_key/2`.

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*Consult [api-reference.md](api-reference.md) for complete listing*