Private Tags/AsShotPreProfileMatrix

TIFF Tag AsShotPreProfileMatrix

Code50832 (hex 0xC690)
Count3 * ColorPlanes or ColorPlanes * ColorPlanes
DefaultIdentity matrix


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.

Related tags

See also