GSAS-II is widely used for data reduction for area detector data and can perform some types of data fitting directly to these images. There are a few parameters that are shown in the main data tree entry for the image, such as the pixel size. These should rarely be changed (preferably never). If this information is not correct, the image cannot be used. The child entries for an IMG entry are shown in Table 15.4.
| Child item name | Description and discussion |
| Comments | Metadata and annotations read from the image are placed here. Nothing here can be edited. |
| Image Controls | Used for calibration and integration of images, with extensive controls. |
| Masks | Used to designate parts of an image that should be ignored (masked away). There are many different types of masks that can be created to deal with different types of artifacts. There is also a mechanism for removing areas of the image that are not radially symmetric, such as single-crystal peaks from a diamond anvil cell. |
| Stress/Strain | This is used to analyze applied stress that will cause Bragg rings to be elongated. |