[Good First Issue] PostProcess supports RGB->NV12 color convert function

Context

Some customer need run super-resolution models, which need convert original NV12 video data to RGB format with scale/mean before inference and do reversed operations (RGB->NV12 and scale/mean) after inference. Current ov::preprocess::PostProcessSteps doesn't support RGB->NV12 and scale/mean, this ticket is used to implement RGB->NV12 support.

What needs to be done?

PostProcess support RGB->NV12: ov::preprocess::PostProcessSteps &ov::preprocess::PostProcessSteps::convert_color(const ov::preprocess::ColorFormat &dst_format);

1. Implement above API, maybe can implement op::v8::RGBtoNV12 to do color convert, similar to op::v8::NV12toRGB for preprocess.
2. Support ColorFormat::NV12_SINGLE_PLANE
3. Support ColorFormat::NV12_TWO_PLANES, can set subname for Y and UV plane tensors
4. Add test cases

Example Pull Requests

No response

Resources

• Contribution guide - start here!

• Intel DevHub Discord channel - engage in discussions, ask questions and talk to OpenVINO developers

• target source code: https://github.com/openvinotoolkit/openvino/tree/master/src/core/include/openvino/core/preprocess https://github.com/openvinotoolkit/openvino/tree/master/src/core/src/preprocess

Contact points

@ilya-lavrenov @riverlijunjie

Ticket

No response