ornamental carving 3d model

Create a high-detail 3D relief from the provided JPG image. Convert the ornamental carving into a grayscale heightmap relief. White areas represent the highest surfaces, black areas represent the deepest cuts. Maintain sharp edges, smooth curves, and clear depth separation. The style is classical ornamental carving, suitable for CNC router relief carving. Flat background, no perspective distortion, no shadows, no lighting effects.