HF RL Explorer

Issue: Color image support for EdgeDrawing

Issue: Color image support for EdgeDrawing: a task in LegoFlow-SWE (Harbor dataset). cv::ximgproc::EdgeDrawing currently only works with single‑channel grayscale images. If you pass a 3‑channel BGR image (CV 8UC3) to detectEdges() , the call either fails or silently produces no edges.

The task

`cv::ximgproc::EdgeDrawing` currently only works with single‑channel grayscale images. If you pass a 3‑channel BGR image (CV_8UC3) to `detectEdges()`, the call either fails or silently produces no edges.

Part of Lego-X/LegoFlow-SWE.