Dependency property identifier field: SubImagesProperty
If you want to work with a set of individual images, for example, if you want programmatically move individual images around the screen or filter your images, you will want to use a collection of images rather than a single high-resolution image. There are two basic things you need to do to work with a collection of images:
You need to export your images as a collection rather than a single image. You can do this in Deep Zoom Composer. Make sure to check the Create Collection check box when you export your composition. Images within the collection you export are called sub images.
You can access the sub images in a MultiScaleImage (individual MultiScaleSubImage objects) by using the SubImages property.