ATARI 8 Bit : RGB palette to ATARI 8 Bit palette ?

[Lord-Chaos]

I want to convert AMIGA/PC/ST pictures to the ATARI 8 Bit.

 

But the problem is , that these computers use an RGB palette and the ATARI 8 Bit not.

 

How can I convert RGB colors to the colors the ATARI 8 Bit can display ?

 

Thimo

[twh/f2]

I want to convert AMIGA/PC/ST pictures to the ATARI 8 Bit.

 

But the problem is , that these computers use an RGB palette and the ATARI 8 Bit not.

 

How can I convert RGB colors to the colors the ATARI 8 Bit can display ?

 

Thimo

 

On the Unconventional Event 2k2 in Legenfeld Mr.BOSS and me created a java based method in doing this in a quite usefull way. Here ist the method:

 

/**

* converts the given color object into a correspondig atari byte color

* © by Mirko Sobe (Mr.Boss XE)

*/

public int convertToAtari(Color pColor)

{

int col=0;

int r = pColor.getRed()/16;

int g = pColor.getGreen()/16;

int b = pColor.getBlue()/16;

int l = (r+g+b)/3;

int c=0;

 

if ( (r==g)&&(g==b)&&(b==r) ) c=0;

if ( (r==g)&&(b

if ( (r>g)&&(b

{

c=2; // sprung

}

else if ( (r>g)&&(r>b)) c=3;

if ( (r>b)&&(g

if ( (r==b)&&(g

if ( (r

{

c=6; //sprung

}

else if ( (r

 

if ( (r

if ( (r

if ( (rb) )

{

c=10; // sprung

}

else if ( (rb)) c=11;

 

if ( (r

 

return col=c*16+l;

}

 

You can even download my Atari Picture converter. This is a very simple command line programm which converts a prepared 160x192 "gif" oder "png" file to the 62sec format for the atari.

 

url: http://www.havemeister.net/public/atari/A8Pic.java

[krupkaj]

On the Unconventional Event 2k2 in Legenfeld Mr.BOSS and me created a java based method in doing this in a quite usefull way. Here ist the method:

 

It is nice algorithm. Can I use it in my next GEM-View module? I wrote module for reading Koala files and now I can write saving one :wink: