In addition to my last posting, I have found these two methods for generating exposure blended images:
- first, I tried the following simple script, using imagemagick
[code]
#!/bin/bash
normal=$1
under=$2
over=$3
### Merge under exposure
## Mask for under exposed
convert -type Grayscale $under _mask.tif
## Masked version
composite -compose CopyOpacity _mask.tif $under _under_masked.tif
## Merge with background
composite -compose Darken _under_masked.tif $normal _composite.tif
### Merge over exposure
## Mask for over exposed
convert -negate -type Grayscale $over _mask.tif
## Masked version
composite -compose CopyOpacity _mask.tif $over _over_masked.tif
## Merge with background
composite -compose Lighten _over_masked.tif _composite.tif merged.tif
[/code]
- then, there is this nice gimp-script, resulting in this, using the default settings:
