code: public String img(String target, CmsImageScaler scaler, Map<String, String> attributes, boolean partialTag) {
  
          try {
              return CmsJspTagImage.imageTagAction(target, scaler, attributes, partialTag, getRequest());
          } catch (Throwable t) {
              handleException(t);
          }
          CmsMessageContainer msgContainer = Messages.get().container(
              Messages.GUI_ERR_IMG_SCALE_2,
              target,
              scaler == null ? "null" : scaler.toString());
          return getMessage(msgContainer);
      }
docs: Returns the HTML for an <code>&lt;img src="..." /&gt;</code> tag that includes the given image scaling parameters.<p>
  
  @param target the target URI of the file in the OpenCms VFS
  @param scaler the image scaler to use for scaling the image
  @param attributes a map of additional HTML attributes that are added to the output
  @param partialTag if <code>true</code>, the opening <code>&lt;img</code> and closing <code> /&gt;</code> is omitted
  
  @return the HTML for an <code>&lt;img src&gt;</code> tag that includes the given image scaling parameters