Olympus Studio Format (OEF[1]) is a variant of the Olympus Raw File format that was introduced in Olympus Studio 1.x and that can store additional non-destructive processing information.
In Olympus Studio 1.x one can open an image in ORF format using the "Open Image Edit" function and save it back with some non-destructive processing operations added as metadata to the file. Additionally, one can mark some of these operations to be applied during batch processing of the files.
Only information about the following operations can be saved in the ORF format:
- RAW Development Settings
- Resize
- Distortion Correction
- Shading Compensation
- Noise Reduction
- Filter
- Rotate/Flip
The OEF format can store information about the following additional operations:
- Tone Curve
- Brightness & Contrast
- Gamma Correction
- Color Balance
- Sharpness
- Hue, Saturation & Lightness
- Insert Text
- Crop
- Auto Tone Correction
- Fisheye Correction
OEF format can be directly opened and edited only by Olympus Studio software. However, if file extensions are renamed from .OEF to .ORF, the files can be opened my most software than can handle the ORF file format proving that the two formats are very similar.
Additionally, OEF format is not supported by Olympus Studio "batch processing" functionality, although it's supported by the "convert format" functionality (that applies all image processing operations functioning as an alternative way to do batch processing).
Notes
The format has not been widely used and can be considered as a relic. Still, information about it may be relevant in some scenarios but are lacking.
For example, old files found in collections that may be considered impossible to handle due to lack of software support can simply be renamed and used by most software handling ORF files.
I didn't try to edit the main article because I'm completely inexperienced editing Wikipedia articles. Also, these information apply to V1.x of Olympus Studio, I don't have handy an installed copy of v2.x to check if/what applies to it.
Gianluca Hotz (talk) 14:44, 20 September 2014 (UTC)
