If you want to access any images in liferay from theme,
you can follow below very simple steps:
1) Define the taglib in your portlet jsp file
you can follow below very simple steps:
1) Define the taglib in your portlet jsp file
<%@taglib uri="http://liferay.com/tld/theme" prefix="liferay-theme" %>
2)Define the liferay tag like
<liferay-theme:defineObjects />
3)After doing this we would have themeDisplay object available in portlet jsp fileso you can use
<img src="${themeDisplay.getPathThemeImages}/your_Image_folder/image.png" />
So that's it ...