'; $asli = imagecreatefromjpeg("gambar01.jpg"); $lebar = imagesx($asli); $tinggi = imagesy($asli); $x1 = -8; $x2 = 0; $x3 = 8; $x4 = -8; $x5 = 1; $x6 = 8; $x7 = -8; $x8 = 0; $x9 = 8; $baru = imagecreatetruecolor($lebar, $tinggi); for ($x = 0; $x < $lebar; $x++) { for ($y = 0; $y < $tinggi; $y++) { $pixelasli = imagecolorat($asli,$x,$y); $cols = imagecolorsforindex($asli, $pixelasli); $r[$x][$y] = $cols['red']; $g[$x][$y] = $cols['green']; $b[$x][$y] = $cols['blue']; }} for ($x = 1; $x < $lebar-1; $x++) { for ($y = 1; $y < $tinggi-1; $y++) { $cr = $x1 * $r[$x-1][$y-1] + $x2 * $r[$x][$y-1] + $x3 * $r[$x+1][$y-1] + $x4 * $r[$x-1][$y] + $x5 * $r[$x][$y] + $x6 * $r[$x+1][$y] + $x7 * $r[$x-1][$y+1] + $x8 * $r[$x][$y+1] + $x9 * $r[$x+1][$y+1] ; $cg = $x1 * $g[$x-1][$y-1] + $x2 * $g[$x][$y-1] + $x3 * $g[$x+1][$y-1] + $x4 * $g[$x-1][$y] + $x5 * $g[$x][$y] + $x6 * $g[$x+1][$y] + $x7 * $g[$x-1][$y+1] + $x8 * $g[$x][$y+1] + $x9 * $g[$x+1][$y+1] ; $cb = $x1 * $b[$x-1][$y-1] + $x2 * $b[$x][$y-1] + $x3 * $b[$x+1][$y-1] + $x4 * $b[$x-1][$y] + $x5 * $b[$x][$y] + $x6 * $b[$x+1][$y] + $x7 * $b[$x-1][$y+1] + $x8 * $b[$x][$y+1] + $x9 * $b[$x+1][$y+1] ; if ($cr > 255) { $cr = 255; } if ($cr < 0) { $cr = 0; } if ($cg > 255) { $cg = 255; } if ($cg < 0) { $cg = 0; } if ($cb > 255) { $cb = 255; } if ($cb < 0) { $cb = 0; } $ncr = 255 - $cr; $ncg = 255 - $cg; $ncb = 255 - $cb; $warna = imagecolorallocate($baru, $cr, $cg, $cb); imagesetpixel($baru, $x, $y, $warna); }} imagejpeg($baru,"gambar01cp.jpg",75); //echo ''; include 'hasil.php'; ?>