| Description: The geometry_projection_type attribute specifies how pixels in a file have been reprojected to correct for camera distortion, linearization, or rubber-sheeting (it is not the intent of this field to capture map projections). "Raw" indicates no projection has been done. |
| Namespace Id: img_surface | Steward: img | Class Name: Geometry_Projection | 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 |
| | Linearized | Indicates reprojection has been performed to linearize the camera model (thus removing things like lens distortion). For images using the CAHV family of camera models, the image uses a CAHV model instead of CAHVOR or CAHVORE. |
| | Raw | Indicates the image has not been reprojected. The original camera model is still in use. |
| | Trapezoid | Trapezoidal reprojection, used to compensate for an off-axis camera such as the Mars 2020 PIXL MCC. |
| | Uncorrected | No correction has been applied to the geometry. |