# General Purpose Libraries

| ![](assets/images/home/easyimage.webp)   | [EasyImage](easyimage/index.html.md) offers gray-level image processing functions that improve image quality and contrast between background and objects of interest as well as linear and non-linear filtering and geometric transformations. It also offers tools for quantifying image focus, sliding window statistics and histogram analysis.   | - [Using](easyimage/index.html.md)<br/>- [Reference](../../reference_manual/general_purpose/easyimage-library.html.md)<br/>- [Code snippets](../../resources/code_snippets/general_purpose/easyimage/index.html.md)   |
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| ![](assets/images/home/easycolor.webp)   | [EasyColor](easycolor/index.html.md) contains color image processing functions that efficiently convert images between several color systems.                                                                                                                                                                                                        | - [Using](easycolor/index.html.md)<br/>- [Reference](../../reference_manual/general_purpose/easycolor-library.html.md)<br/>- [Code snippets](../../resources/code_snippets/general_purpose/easycolor/index.html.md)   |

## Quick links

- **[Image Operations](../basic_operations/images/index.html.md)** defines fundamental objects, types, classes and functions used in all **eVision** components.
- Use [**eVision Studio**](../../getting_started/evision_studio/index.html.md) to evaluate the tools and libraries.