Smoothing Algorithm

[Sastraxi]

Cheers all, and here's my problem:

I'm trying to make a better quality blown up image for use with fullscreen 2d games (eg. Kreed's SuperEagle in SNES9X or ZSNES)

I'm doing it pixel by pixel, and a list of rules follows.
I'm using the rules:

If the pixels to the top & left are the same, put the colour in quadrant #1 ( top-left when blown up )

If the pixels to the top & right are the same, put the colour in quadrant #2 ( top-right when blown up )

If the pixels to the bottom & left are the same, put the
colour in quadrant #3

If the pixels to the bottom & right are the same, put the colour in quadrant #4


That is what I'm doing so far, and it seems to do a good job, but how will it do for every picture?

Here is what I ask of you:

1. Send me a 320x240 picture from an emulator screenshot (or a computer rpg or something like that)
EMAIL: sastraxitech@programmer.net

2. Or post it on the forums here.

3. Wait to get it back and tell me if you like the results.

[kedaman]

ok

[Sastraxi]

Thanks, and thank you for taking my advice.

I'll post it back here in a sec.
To the left is the unsmoothed
To the right is the smoothed.
This isnt a good example for various reasons, but
here is an example that shows off the features nicely:

kedascrn.gif
examscrn.gif

Are the attachments, kedascrn being yours, kedaman.

Enjoy!

Cheers,
Sastraxi

[Sastraxi]

Kedascrn

[Sastraxi]

Here are the pics, zipped so I can upload them:

[kedaman]

I don't see any links Sas, maybe you tried to upload more than the 100k limit?

[Sastraxi]

Yeah... the zip's 237 KB, the jpg 132 KB, the bmp 1.22 mb... etc....

So I zipped them and I'm sending them over to ya.

[Zero]

I've been working on something like that for a while. It extrapolates curves and lines in a bitmap, kind of like CorelDraw's trace function. I wrote it to clean up low-rez digital camera pictures. I'm having lots of problems with it, though. Oh well. Another project for the back burner...

~Zero the Inestimable

[Sastraxi]

So now you're copying me, eh? :)

Just joking, good luck to you.
I hope it works out, like it did for me.
(I can send you my algorithm if u want)

[MoMad]

heh, i am lost in this discussion...

whats the speed of ur algorythm? is it a slow one... and does ur algorythm do anything about the file size?

i dont know if those are the right q to ask, but i wanna see some of that testing stuff... hey do you have icq?

[Sastraxi]

1. Since it uses SetPixelV and Getpixel, it takes about 9 seconds/frame. (Soon to be changed to get & setbitmapbits) This is on a Celeron 533 w/128 mb Ram and an S3 Savage4 card. The conversion is 24bit from 320x240 to 640x480.

2. My algorithm doesn't save, but if it did, it would about quadruple the file size. Its meant just to be written to the screen, like on an Emulator. It looks okay, if you havent downloaded the zip then download it now.

My ICQ is 84479333.

[MoMad]

where is it?? cant find the zip

[Sastraxi]

Here it is:

[HarryW]

Hey that's pretty cool. Why aren't they all the same image?

[Sastraxi]

That one sux compared to my latest.... although my 2nd latest makes everything 1 pixel in 320x240 disappear when enlarged....

I'll post the latest here, and to HarryW, I thought they were all the same. If you want to TRULY compare, enlarge the image unprocessed.bmp or something like that x2. Then you can see the difference clearly.

[MoMad]

cool im checking it out.

[MoMad]

hey i dont see a big difference between the super eagle mode and smoothing engine except for file size,,,

cool.

[MoMad]

Yo Kedaman, how bout moving out of Geo****ies man!! they suck and they will [try to] own ur hard work!!

[kedaman]

`Yeah i know i should but i'm lazy, Any suggestions where to?

[Sastraxi]

www.tripod.lycos.com
register under kedaman
and then your address will be:
kedaman.tripod.com

[MoMad]

http://www.virtualave.net

register under kedaman
and then your address will be:
kedaman.virtualave.net

or just get a http://go.to/kedaman
or http://i.am/kedaman
or fly.to, welcome.to, etc.... or even a kedaman.cjb.net

the possibilities are endless... try to get something that supports scripts... (cgi, perl, php, etc..) and has infinites or lots of space....

make a choice here:
http://freeweblist.freeservers.com/

they have a good list of many free hosts... and the list grows....