b69d752221
[lua scripts api] created manual from embedded library documentation [lua api] created stub to contain lua api manual
48 lines
1.3 KiB
Markdown
48 lines
1.3 KiB
Markdown
---
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title: RL_out_sharp
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id: RL_out_sharp
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weight: 290
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draft: false
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author: "people"
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---
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## Name
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RL_out_sharp.lua - Richardson-Lucy output sharpening using GMic
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## Description
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This script provides a new target storage "RL output sharpen".
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Images exported will be sharpened using GMic (RL deblur algorithm)
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EXAMPLE
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set sigma = 0.7, iterations = 10, jpeg output quality = 95,
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to correct blur due to image resize for web usage
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## Usage
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* require this script from main lua file
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* in lua preferences, select the GMic cli executable
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* from "export selected", choose "RL output sharpen"
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* configure output folder
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* configure RL parameters with sliders
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* configure temp files format and quality, jpg 8bpp (good quality)
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and tif 16bpp (best quality) are supported
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* configure other export options (size, etc.)
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* export, images will be first exported in the temp format, then sharpened
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* sharpened images will be stored in jpg format in the output folder
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## Additional Software Required
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GMic command line interface (CLI) https://gmic.eu/download.shtml
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## Limitations
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MAC compatibility not tested
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Although Darktable can handle file names containing spaces, GMic cli cannot,
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so if you want to use this script please make sure that your images do not
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have spaces in the file name and path
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## Author
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Marco Carrarini - marco.carrarini@gmail.com
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