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Use of -levels2 options
Posted: Thu Apr 08, 2021 5:31 pm
by SAMSAM
In the new version 7.70 of nconvert, the command "-levels2" has appeared, please help us understand the parameters of this command. The logic of these 5 parameters is not quite clear. Describe them in more detail and preferably with examples.
Re: Command parameters - levels 2
Posted: Thu Apr 08, 2021 6:11 pm
by cday
SAMSAM wrote: Thu Apr 08, 2021 5:31 pm
In the new version 7.70 of nconvert, the command "-levels 2" has appeared, please help us understand the parameters of this command. The logic of these 5 parameters is not quite clear. Describe them in more detail and preferably with examples.
Referring to the
Image > Adjust > Levels... display in XnView MP:
- -levels2.png (20.67 KiB) Viewed 4636 times
The
b and
w parameters in the above NConvert option can be taken to refer to the top slider left and right window numeric values, I believe.
Code: Select all
-levels2 in_low in_high gamma out_low out_high : Levels
In the
-levels2 option, the
in_low,
in_high, and
gamma values can be taken to represent the top slider left, right and centre numeric values, and the
out_low and
out_high refer to the lower slider (labelled Output) left and right numeric values, I believe.
In the event of any confusion, a quick check of the resulting output images using XnView MP and NConvert should confirm correct operation.
Re: Use of -levels options
Posted: Fri Apr 09, 2021 4:17 am
by SAMSAM
Thank you, now everything is clear. Let's try ...
