Can jpg and png formats images be marked directly on the ring?

Although the picture can be marked, the colored places according to the gray value of the picture are also printed out. It is best to use vector graphics. The dxf can be drawn with special drawing software, and simple characters can be drawn directly in EZCAD.

Questions about filling of vector graphic

After the bitmap was converted to a vector graphic, I filled it directly, and the graphic disappeared. After ungrouping, it became dense dots, and there was no way to fill it. Check Optimize curve and Auto connect curve.