Method watermark

processing/watermark.go:206–212

(c *Context)

}

func (p *Processor) watermark(c *Context) error {
	if p.watermarkProvider == nil || c.PO.WatermarkOpacity() == 0 {
		return nil
	}

	return p.applyWatermark(c.Ctx, c.Img, c.PO, c.DprScale, 1)
}