[magick-users] Filters in PNG

[Claus Cyrny]

Hi Fred,

many thanks. Especially the article the second link points to is really
great. What I was actually referring to, though, are the PNG-specific
filter options to reduce the file size (none, sub, up, average, paeth).
Can I specify those as well somewhere? Those option are mentioned
in the entry on '-quality'.

Claus

Fred Weinhaus wrote:
> see:
>
>
> http://www.imagemagick.org/script/command-line-options.php?#filter
> http://www.imagemagick.org/Usage/resize/#filter
>
>
>
>> Hi,
>>
>> I would like to know where I specify the 'filter-type' option in
>> 'convert'? The docs
>> <http://www.imagemagick.org/script/command-line-options.php#quality> are
>> somewhat confusing to me here. There's
>> only the option '-quality'.
>>
>> TIA,
>>
>> Claus
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