Very simple plugin to add a photo gallery within an article:

Just add for example {gallery}myphotos{/gallery} inside any article and all images existing in the folder "myphotos" will be "automagically" presented as an image gallery.

Note: Root folder for images will be "images/stories", so create the "myphotos" folder there.

If you want to create a gallery from subfolders inside the ROOT folder, simply add them like this: {gallery}folder/subfolder/othersubfolder{/gallery}. In other words, write the path to your target folder without any slashes at the beginning or the end of your path (it's added auto-magically!).

Source/credits: Joomlaworks