| Description: Specifies what the values in this Subframe instance are measured relative to. For historical reasons, if relative_to is omitted, a default of "Sensor" should be assumed. |
| Namespace Id: img | Steward: img | Class Name: Subframe | Type: ASCII_Short_String_Collapsed |
| Minimum Value: None | Maximum Value: None | Minimum Characters: 1 | Maximum Characters: 255 |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: SHORT_STRING |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | Image | The values in the Subframe are coordinates within an image. For example, when used within a Statistics class, it indicates the area of the image over which the statistics are gathered (having nothing to do with the original sensor). |
| | Sensor | The values in the Subframe are coordiantes on the original sensor. Note that if downsampling is applied, these values are measured before the downsampling (in which case "lines" for example will not match the number of lines in the image because the latter takes downsampling into account). |