[Radiance-general] How to get extreme values from a falsecolor image

[Vaib]

Thank you Rob.

Am I doing it wrong? -a option is a "bad option" :) Not valid argument I
mean..
 $ falsecolor -i foo.hdr -s 1000 -n 10 -l Lux -a > bar.hdr

And pextrem doesn't take HDR file. I have to work with HDR, as it has
conversion libraries in Java.

Vaib


On 5 February 2014 17:50, Guglielmetti, Robert <Robert.Guglielmetti at nrel.gov
> wrote:

> Hi Vaib,
>
>
>
> A couple of things:
>
>
>
> Thing One: there is an -a option, which "autoscales" the max value for the
> scale to peak at the max value found in the image.
>
> Thing Two: yes, you can use pextrem to get the min and max values (in
> Rr,Rg,Rb) printed to the command line.
>
>
>
> - Rob
>
>
>
> *From:* Vaib [mailto:vaibhavjain.co at gmail.com]
> *Sent:* Wednesday, February 05, 2014 9:39 AM
> *To:* Radiance general discussion
> *Subject:* [Radiance-general] How to get extreme values from a falsecolor
> image
>
>
>
> Hello everyone,
>
>
>
> Falsecolor's documentation states that "The *-e* option causes extrema
> points to be printed on the brightest and darkest pixels of the input
> picture."
>
>
>
> Is there any way to output (not print on image) the extrema values? This
> could be helpful in appropriately scaling the "scale".
>
>
>
> Thank you!
>
>
>
> Best regards,
>
> Vaib
>
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>
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