The Auto-Contrast sample provides step-by-step instructions for OpenVX* code development. Specifically, the sample demonstrates acceleration of image processing tasks with OpenVX* implementing a straightforward intensity normalization via histogram equalization.
The code uses only standard OpenVX nodes and the bare minimum resources. For example, wherever possible, it relies on OpenVX virtual images. The sample also shows basic interoperability with OpenCV*, which is used for loading/saving and displaying the images.