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List:       kde-artists
Subject:    Re: K-ARTIST: Rule based enhancement of small icons
From:       James Richard Tyrer <tyrerj () acm ! org>
Date:       2004-01-22 21:58:00
Message-ID: 40104768.1030300 () acm ! org
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Allan Sandfeld Jensen wrote:
> On Thursday 22 January 2004 21:37, James Richard Tyrer wrote:
> 
>>This is a basic example that deals only with Black outlines.
>>
>>I do think that this is relevant because for high information content icons
>>should have Black outlines.
>>
>>I am using the Krita 48x48 icon.  First problem is that this icons doesn't
>>have Black. So, I slightly manipulated it in The GIMP so that it does have
>>Black outlines [krita.48.png].
>>
>>Then I made a cubic reduction with The GIMP [krita.16-0.png] which is a
>>fuzzy colored blob.
>>
>>To this I added a rule based Black layer [krita.16-1.png] which is much
>>better.
>>
>>For comparison, I also include the hand tweaked one [krita.16-2.png] which
>>is slightly better than the rule based one.
>>
>>Specifically note that some of the difference between the rule based and
>>hand tweaked is caused by problems in the original 48x48 image -- the rule
>>didn't produce Black pixels because there weren't Black pixels in the 48x48
>>image.
>>
> 
> Maybe it is just me, but I only think you notice the first version is fuzzy if 
> you zoom on it. Om my screen I think 16-0 looks the best, and the two others 
> just smired with spots of black.

You may have a point.  It is quite possible that icons that are more easily recognizable
in smaller sizes might not look as good from an artistic perspective.  But, I was just
applying a concept that seems to be generally accepted that when under sampling removes
the boarders in smaller icons that they should be restored.  This is the main problem with
small rendering of SVG icons: the boarders are less than one pixel wide so they are either
merged with what is next to them or become partially transparent.  Either way the edge
information is reduced or lost and it is the edge information that makes them easily
recognizable.

--
JRT


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