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The time now is Wed 19 Jun 2013, 21:17
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 Forum index » Advanced Topics » Puppy Projects
pUPnGO - 6Mb ISO - Basic Building Block Puplet
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greengeek

Joined: 20 Jul 2010
Posts: 1217
Location: New Zealand
PostPosted: Wed 20 Mar 2013, 04:23    Post subject:  
technosaurus wrote:
I reduced the sizes of some of the danpei xpm icons a bit (enough to save ~20kb in the compiled binary size)
I may as well describe what I did to shrink them
open with mtpaint
Image -> convert to rgb
Image -> convert to indexed
check Min Max Quantize and Floyd Steinberg
change the number at the top to 92 (maybe 93?) or less
save as whatever (works for at least xpm and png, possibly others)
(use your best judgement based on the image - lower number of colors reduces size some, but may end up looking like trash if it gets too low - most small icon pixmaps look ok at 16 colors)
this works because reducing the number of colors below 93 causes the pixels to be represented by a single character ... effectively cutting the size in half (not including the reduction for each color ... ~16B ea. I think)
Note: I have had issues with some versions of mtpaint with this method especially if you do further manipulations of the pallette - it will sometime lose a clear background and need to be edited in a text editor.

Just want to get this on my list so I can refer back to it.
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goingnuts

Joined: 07 Dec 2008
Posts: 634
PostPosted: Wed 03 Apr 2013, 11:12    Post subject:  
For console applications daily reviews and tests...continues the path of http://kmandla.wordpress.com/
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