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Lightroom color adjustment to imagemagick command line
Posted: 2018-08-17T02:49:59-07:00
by cyberguerro
Hi to all,
I need help from you to create command line to apply below color adjustment from lightroom, because I have to apply them to over 30000 files.
This is color adjustment (translated from italian version of lightroom):
Code: Select all
Temp +15
Tint +30
Exposition -23
contrast +100
Lights -35
Shadows 0
Whites -41
Blacks -35
Clarity +11
Vivid +20
Saturation -20
And then for sharpness field:
Factor 43
Range 1,0
Details 19
Mask 50
I attach 2 images (before and after) to understand which result shoul be.
Before:
After:
Thanx to all who can help me.
Re: Lightroom color adjustment to imagemagick command line
Posted: 2018-08-17T06:15:18-07:00
by snibgo
I suggest you consider using
https://www.darktable.org/ , which has some of these built-in.
Re: Lightroom color adjustment to imagemagick command line
Posted: 2018-08-17T07:17:18-07:00
by cyberguerro
Hi @snibgo, unfortunelly I have to use imagemagick because (for complete information) the application which I use to generate my photoscenery (yes, I'm a sim-player of X-Plane), named ortho4xp, uses imagemagick to convert and adjust jpeg images during conversion process.
So I have no choice...
Re: Lightroom color adjustment to imagemagick command line
Posted: 2018-08-17T07:53:27-07:00
by fmw42
Unfortunately, Lightroom is proprietary code. We do not know exactly what they do. It would take quit a bit of time for anyone to try to guess at what they do and make tests with different Imagemagick functions varying the arguments to to see if it can be matched.
Apart from the sharpness issue, you may be able to match Lightroom color, brightness, contrast, etc processing using a HALD image and -hald-clut. Basically you create a large enough HALD image in Imagemagick as PNG or TIFF. Take it to Lightroom and apply all your settings and save it to PNG or TIFF (not any lossy compression like JPG). Then bring it back to Imagemagick and use -hald-clut to apply it to any image.
See
https://www.imagemagick.org/Usage/color_mods/#hald-clut