Re: Can't seem to get -level to work

On 2016-04-16 6:57 PM, Bob Friesenhahn wrote:
>>
>> So there may be a documentation bug, because the manual implies that
>> gamma is optional. Based on the manual, as far as I can tell, my usages
>> were correct in what if only 2 values are given, they are the black and
>> white points. While the program seems to be interpreting the second
>> value as gamma. Am I confused, or is the documentation wrong?
>
> The arguments are black point, gamma, and white point.  They need to
> be specified in order.  Your 2 value form requested a gamma correction
> of 230.
>
> It may be that the order should have been defined differently but it
> is too late to change it now.
>
> One might think that '10,,90%' should work, but it does not.

Right, I went back to the doc, and it does confirm everything you say.

   -level <black_point>{,<gamma>}{,<white_point>}{%}

Problem must have been trying to work it out at midnight and getting 
confused!

Thanks.
--Toby

>
> Bob
>


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