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Post by Maad Jordan on Aug 17, 2004 7:48:14 GMT 10
for PNG files try to use "advdef.exe" then "advpng.exe" from "advcomp" package at advancemame.sourceforge.net/you have to put the compression level of png.. i recommend using 0,6,9 |
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Post by -={DOGG}=- on Aug 20, 2004 16:13:51 GMT 10
Hi. Thanx for the suggestion. But I only test GUI based compressors here, and that's a command one line, i think.
Besides, it says "Recompress ZIP, GZ, PNG and MNG files using the Deflate 7-Zip implementation". I already test deflate with 7-zip. The result is under "zip"
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Post by maad jordan on Aug 21, 2004 2:39:33 GMT 10
what you did is testing GUI on already compressed files.. (deflate..) so i suggest three status:
01- at compression level 0 means no compression..
02- at comp level 6 (which is default for PNG)..your test
03- at comp level 9 (which is normal..)
at end i would notice the power of the compressors and its affected power by the compressed data..
BTW: with advpng,advdef i could reduce my png files to 40% (specially less color cont..) so you may see that at level 9 or (-z -4 ) option can lead to perfect compression even better than any compressors..
MAAD
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Post by -={DOGG}=- on Aug 21, 2004 17:45:57 GMT 10
I don't think you understand what i'm saying. I only test compressors with a GUI, a graphical user interface. So if you have to use dos command line, i don't test it. Also, it hasn't got the ability to pack all the pngs into 1 file, as is required by my tests. However i did test advpng just to see what it's like. With -z -4 this is the result
16744526 16744526 100% Cars_01.png (Bigger 20340794)
16744526 16744526 100%
It could not compress it any more than it already is. Probably because my images are huge, with lots of colours.
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