[gdal-dev] Re: Gdal_translate, question from an amateur.

[Jay L.]

I do not believe that a GDAL command line tool to perform that function
exists.  The task is achievable using GDAL and Numpy masked arrays in
python.

Perhaps someone else knows of a GDAL tool to perform this functionality
though.

J

On Sun, Oct 23, 2011 at 12:59 PM, joolek <joolek.o at gmail.com> wrote:

> Hi
> I need to convert all the 255 255 255 into 254 254 254. Is this possible?
> PS. Do appologize for lack of my language.
>
> Thanks
> J
>
> On 23 Oct 2011, at 15:26, "Jay L. [via OSGeo.org]" <[hidden email]<http://user/SendEmail.jtp?type=node&node=6922377&i=0>>
> wrote:
>
> Or are you trying to convert only some of the pixels to white?
>
> On Sun, Oct 23, 2011 at 10:02 AM, Brian Case <[hidden email]<http://user/SendEmail.jtp?type=node&node=6922091&i=0>
> > wrote:
>
>> joolek,
>>
>> I noticed you used the word "strip". Are you trying to remove portions
>> of the image that are all black or white?
>>
>>
>> On Sun, 2011-10-23 at 03:01 -0700, joolek wrote:
>> > Basically - I have an imagery with RGB 0-255, but I would like to strip
>> it to
>> > 1-254.
>> > So i want to get rid off two extremes (0 and 255) - is this possible?
>> > Thank you
>> > J
>> >
>> > --
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