[magick-users] Filters in PNG

[Fred Weinhaus]

Sorry that is something I do not know from experience.

But take a look at the following and see if that helps.

http://www.imagemagick.org/Usage/formats/#png

Two great resources are:
http://www.imagemagick.org/Usage/reference.html
http://www.imagemagick.org/Usage/


Fred



>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