TIFF Tag Reference
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TIFF Tag BestQualityScale
| IFD | | Image |
|---|---|---|
| Code | 50780 (hex 0xC65C) | |
| Name | BestQualityScale | |
| LibTiff name | TIFFTAG_BESTQUALITYSCALE | |
| Type | RATIONAL | |
| Count | 1 | |
| Default | 1.0 |
Description
Used in Raw IFD of DNG files.
For some cameras, the best possible image quality is not achieved by preserving the total pixel count during conversion. For example, Fujifilm SuperCCD images have maximum detail when their total pixel count is doubled.
This tag specifies the amount by which the values of the DefaultScale tag need to be multiplied to achieve the best quality image size.