Das fabulöse Montagsmaler Spiel #2

[Tii-chan]

<3!

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richtig

Wie hast du das Stereogramm gemacht, wenn man fragen darf.

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PHP-Code:

class StereoImage 
    { 
    // Bild in GD einlesen 
    function getImage($path) 
    { 
    if (ereg(".gif\$", $path)) $image=imageCreateFromGIF($path); else $image=imageCreateFromJPEG($path); 
    return($image); 
    } 
     
    // Stereogramm aus zwei GD- Bildern erzeugen 
    function createStereo($tileimage, $pictureimage) 
    { 
    // Tile einlesen 
    $tilewidth=imageSX($tileimage); if (!$tilewidth) return(false); 
    $tileheight=imageSY($tileimage); 
    for ($y=0;$y<$tileheight;$y+ + ) 
    for ($x=0;$x<$tilewidth;$x+ + ) 
    { 
    $color=imageColorAt($tileimage, $x, $y); if (!is_array($color)) $color=imageColorsForIndex($tileimage, $color); 
    $color=chr($color[red]).chr($color[green]).chr($color[blue]); 
    $tile[$y][$x]=$color; 
    } 
     
    // Tiefenbild einlesen 
    $mincolor=256; 
    $picturewidth=imageSX($pictureimage); if (!$picturewidth) return(false); 
    $pictureheight=imageSY($pictureimage); 
    for ($y=0;$y<$pictureheight;$y+ + ) 
    for ($x=0;$x<$picturewidth;$x+ + ) 
    { 
    $color=imageColorAt($pictureimage, $x, $y); if (!is_array($color)) $color=imageColorsForIndex($pictureimage, $color); 
    $color=floor(($color[red]+ $color[green]+ $color[blue])/3); 
    $mincolor=min($mincolor, $color); 
    $maxcolor=max($maxcolor, $color); 
    $picture[$y][$x]=$color; 
    } 
     
    // Höhenfaktor/- verschiebung berechnen 
    $space=$maxcolor- $mincolor+ 1; 
    $elevation=$mincolor; 
    $factor=$space/($tilewidth*0.1); // Max. 10% Verzerrung 
     
    // Stereobild erzeugen 
    $picturewidth+ =$tilewidth; 
    $stereoimage=imageCreateTrueColor($picturewidth, $pictureheight); 
    for ($x=0;$x<$picturewidth;$x+ + ) 
    for ($y=0;$y<$pictureheight;$y+ + ) 
    { 
    // Auf Tile mappen 
    $sx=$x % $tilewidth; 
    $sy=$y % $tileheight; 
    // Höhendiff ausrechnen 
    $rx=$x- $tilewidth; 
    $diff=floor(($picture[$y][$rx<0?0:$rx]- $elevation)/$factor)+ $diffs[$y][$rx- $tilewidth]; 
    $diffs[$y][$x- $tilewidth]=$diff; 
    // Höhendiff zum X addieren und clippen 
    $sx+ =$diff; 
    if ($sx>=$tilewidth) $sx- =$tilewidth; else if ($sx<0) $sx+ =$tilewidth; 
    // Pixel kopieren 
    $sourcecolor=$tile[$sy][$sx]; 
    $color=imageColorAllocate($stereoimage, ord($sourcecolor[0]), ord($sourcecolor[1]), ord($sourcecolor[2])); 
    imageSetPixel($stereoimage, $x, $y, $color); 
    } 
     
    // Sterebild zurückgeben 
    return($stereoimage); 
    } 
} 

edit: achja: Mustergrafik
Tiefengrafik