This filter is used for lightning shadows and midtones of an image without blowing the highlights. A detailed tutorial can be found at 附录 C, Tone Mapping and Shadow Recovery Using GIMP’s → .
- Presets, Blending Options, Preview, Merge filter, Split view
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![[注意]](images/note.png)
注意 These options are described in 第 8.1.2 节 “Colors Common Features”.
- Black level
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This option is used to dispense with "useless" shadows and highlight information.
- Exposure
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This option is used to add one or more stops of exposure compensation to the image.
