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LVZ/LVL Questions - bmp or jpg?

Anonymous - Tue Sep 13, 2005 5:55 pm
Post subject: bmp or jpg?

I am making a map, using lots of LVZ; I know bmp are better quality but bigger;and vice versa for JPG's, but my concern is which compresses better BMP or JPG? Odd reason sometimes a bmp compreeses better than jpg just need some help on that thncx

Bak - Tue Sep 13, 2005 6:18 pm
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never use bmp

use JPG for photos and rendered graphics

use PNG for everything else, or when you want lossless photos or rendered graphics

Maverick - Tue Sep 13, 2005 7:25 pm
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I believe it doesn't matter that much since LVZ is another compression on its own.
But using BMP is always overkill since it can be put in any other format which takes less space. Esp. convenient for the one who opens your lvz and edits it.

Muskrat - Tue Sep 13, 2005 7:44 pm
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What's wrong with the lvz's compression of bmps??

Anonymous - Tue Sep 13, 2005 7:59 pm
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BMP compresses better than PNG

Cyan~Fire - Tue Sep 13, 2005 8:48 pm
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I still don't believe that. PNG does more than just zlib compression.

Mr Ekted - Tue Sep 13, 2005 10:18 pm
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Agreed. Image compression is not a simple Huffman or LZW type of function of the data. Similarly, you can't compress audio very much with those algorithms. You have to understand what makes and image look like it does, or what makes audio sound like it does, and find the proper redundancies.

Chambahs - Thu Sep 15, 2005 5:45 pm
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i suggest using PNG, that way, you have less space and less download time (which is annoying to have) and plus, you can use PNG Crush, which compresses it more, then you got the lvz compression, jpg and bmp cant do that

so i say go for PNG

Anonymous - Sun Sep 18, 2005 9:21 pm
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PNG Crush? what is that and where can i get it

Mine GO BOOM - Sun Sep 18, 2005 10:29 pm
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Read this thread for lots of information.

Cancer+ - Mon Sep 19, 2005 12:09 am
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so jpgs/pngs lvz's would make a smaller download than say a bm2 or bmp?

Chambahs - Mon Sep 19, 2005 12:10 am
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yes, and PNG owns all, and i dont care what bak says (dont post bak, leave me alone

)

Bak - Mon Sep 19, 2005 2:22 am
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37 KB vs 8 KB... try getting it smaller than 8KB with a PNG and I'll shut up

Agurus - Mon Sep 19, 2005 9:21 am
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Yeah, but bak try compressing them win LVZ; BMP turns out smaller than PNG. ( I wish you didn't make CLIT all conver to PNG PFFFT).

Bak - Mon Sep 19, 2005 10:05 am
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not always.

PNG will usually beat out BMP in lvz. At least, that's what I think. You should try it on a bunch of images and give us your results.

Dr Brain - Mon Sep 19, 2005 2:16 pm
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I've had bmps come out on top of bmp vs png lvz compression test several times.

As for the jpg thing, you can't use jpegs when you want to do transparency.

Mine GO BOOM - Mon Sep 19, 2005 4:32 pm
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Bak wrote:

You should try it on a bunch of images and give us your results.

Or if you really want to be nice, could add it into your program. It doesn't take long to compress the image as both a BMP and a PNG, and then use only the one that wins.

Cyan~Fire - Mon Sep 19, 2005 10:56 pm
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If a bmp ever compresses better than png, there's something wrong with either the lvz format or zlib.