TIFF Tag AsShotPreProfileMatrix
| IFD |  | Image |
|---|---|---|
| Code | 50832 (hex 0xC690) | |
| Name | AsShotPreProfileMatrix | |
| Type | SRATIONAL | |
| Count | 3 * ColorPlanes or ColorPlanes * ColorPlanes | |
| Default | Identity matrix |
Description
Used in IFD 0 of DNG files.
This tag is used in conjunction with the AsShotICCProfile tag. It specifies a matrix that should be applied to the camera color space coordinates before processing the values through the ICC profile specified in the AsShotICCProfile tag.
The matrix is stored in the row scan order.
If ColorPlanes is greater than three, then this matrix can (but is not required to) reduce the dimensionality of the color data down to three components, in which case the AsShotICCProfile should have three rather than ColorPlanes input components.