function offset($image, $a, $compare = 1, $page)
{
$b = array();
$c = array();
$d = array();
//temp only ?
if (!isset($a['tlx']) && $compare == 1) {
$c[0] = 0;
$c[1] = 0;
return $c;
}
//line edge detection
$d[] = vertlinex($page['TL_VERT_TLX'], $page['TL_VERT_TLY'], $page['TL_VERT_BRX'], $page['TL_VERT_BRY'], $image, $page['VERT_WIDTH_BOX'], int_divide($page['VERT_WIDTH_BOX'], 10), 50, false);
$d[] = horiliney($page['TL_HORI_TLX'], $page['TL_HORI_TLY'], $page['TL_HORI_BRX'], $page['TL_HORI_BRY'], $image, $page['HORI_WIDTH_BOX'], int_divide($page['HORI_WIDTH_BOX'], 10), 50, false);
$d[] = vertlinex($page['TR_VERT_TLX'], $page['TR_VERT_TLY'], $page['TR_VERT_BRX'], $page['TR_VERT_BRY'], $image, $page['VERT_WIDTH_BOX'], int_divide($page['VERT_WIDTH_BOX'], 10), 50, false);
$d[] = horiliney($page['TR_HORI_TLX'], $page['TR_HORI_TLY'], $page['TR_HORI_BRX'], $page['TR_HORI_BRY'], $image, $page['HORI_WIDTH_BOX'], int_divide($page['HORI_WIDTH_BOX'], 10), 50, false);
$d[] = vertlinex($page['BL_VERT_TLX'], $page['BL_VERT_TLY'], $page['BL_VERT_BRX'], $page['BL_VERT_BRY'], $image, $page['VERT_WIDTH_BOX'], int_divide($page['VERT_WIDTH_BOX'], 10), 50, false);
$d[] = horiliney($page['BL_HORI_TLX'], $page['BL_HORI_TLY'], $page['BL_HORI_BRX'], $page['BL_HORI_BRY'], $image, $page['HORI_WIDTH_BOX'], int_divide($page['HORI_WIDTH_BOX'], 10), 50, false);
$d[] = vertlinex($page['BR_VERT_TLX'], $page['BR_VERT_TLY'], $page['BR_VERT_BRX'], $page['BR_VERT_BRY'], $image, $page['VERT_WIDTH_BOX'], int_divide($page['VERT_WIDTH_BOX'], 10), 50, false);
$d[] = horiliney($page['BR_HORI_TLX'], $page['BR_HORI_TLY'], $page['BR_HORI_BRX'], $page['BR_HORI_BRY'], $image, $page['HORI_WIDTH_BOX'], int_divide($page['HORI_WIDTH_BOX'], 10), 50, false);
//check to see how many are 0 - if none are - proceed, otherwise try for box
//edge detection
//
$boxerrors = 0;
foreach ($d as $bb) {
if ($bb == 0) {
$boxerrors++;
}
}
if ($boxerrors > 0) {
//try box edge detection
$b[] = vertlinex($page['TL_VERT_TLX'], $page['TL_VERT_TLY'], $page['TL_VERT_BRX'], $page['TL_VERT_BRY'], $image, $page['VERT_WIDTH'], int_divide($page['VERT_WIDTH'], 3));
$b[] = horiliney($page['TL_HORI_TLX'], $page['TL_HORI_TLY'], $page['TL_HORI_BRX'], $page['TL_HORI_BRY'], $image, $page['HORI_WIDTH'], int_divide($page['HORI_WIDTH'], 3));
$b[] = vertlinex($page['TR_VERT_TLX'], $page['TR_VERT_TLY'], $page['TR_VERT_BRX'], $page['TR_VERT_BRY'], $image, $page['VERT_WIDTH'], int_divide($page['VERT_WIDTH'], 3));
$b[] = horiliney($page['TR_HORI_TLX'], $page['TR_HORI_TLY'], $page['TR_HORI_BRX'], $page['TR_HORI_BRY'], $image, $page['HORI_WIDTH'], int_divide($page['HORI_WIDTH'], 3));
$b[] = vertlinex($page['BL_VERT_TLX'], $page['BL_VERT_TLY'], $page['BL_VERT_BRX'], $page['BL_VERT_BRY'], $image, $page['VERT_WIDTH'], int_divide($page['VERT_WIDTH'], 3));
$b[] = horiliney($page['BL_HORI_TLX'], $page['BL_HORI_TLY'], $page['BL_HORI_BRX'], $page['BL_HORI_BRY'], $image, $page['HORI_WIDTH'], int_divide($page['HORI_WIDTH'], 3));
$b[] = vertlinex($page['BR_VERT_TLX'], $page['BR_VERT_TLY'], $page['BR_VERT_BRX'], $page['BR_VERT_BRY'], $image, $page['VERT_WIDTH'], int_divide($page['VERT_WIDTH'], 3));
$b[] = horiliney($page['BR_HORI_TLX'], $page['BR_HORI_TLY'], $page['BR_HORI_BRX'], $page['BR_HORI_BRY'], $image, $page['HORI_WIDTH'], int_divide($page['HORI_WIDTH'], 3));
$lineerrors = 0;
foreach ($b as $bb) {
if ($bb == 0) {
$lineerrors++;
}
}
//check which one has the least number of errors
if ($lineerrors < $boxerrors) {
$d = $b;
}
}
if ($compare == 0) {
return $d;
}
$xa = 0;
$xb = 0;
$xc = 0;
$ya = 0;
$yb = 0;
$yc = 0;
if ($b[0] != 0) {
$xa += $a['tlx'];
$xb += $b[0];
$xc++;
} else {
return false;
}
if ($b[2] != 0) {
$xa += $a['trx'];
$xb += $b[2];
$xc++;
} else {
return false;
}
if ($b[4] != 0) {
$xa += $a['blx'];
$xb += $b[4];
$xc++;
} else {
return false;
}
if ($b[6] != 0) {
$xa += $a['brx'];
$xb += $b[6];
$xc++;
} else {
return false;
}
if ($b[1] != 0) {
$ya += $a['tly'];
$yb += $b[1];
$yc++;
} else {
return false;
}
if ($b[3] != 0) {
$ya += $a['try'];
$yb += $b[3];
$yc++;
} else {
return false;
}
if ($b[5] != 0) {
$ya += $a['bly'];
$yb += $b[5];
$yc++;
} else {
return false;
}
if ($b[7] != 0) {
$ya += $a['bry'];
$yb += $b[7];
$yc++;
} else {
return false;
}
$c[0] = round($xb / $xc) - round($xa / $xc);
$c[1] = round($yb / $yc) - round($ya / $yc);
return $c;
}
function offset($image, $a, $compare = 1, $page)
{
$b = array();
$c = array();
//temp only ?
if (!isset($a['tlx']) && $compare == 1) {
$c[0] = 0;
$c[1] = 0;
return $c;
}
$b[] = vertlinex($page['TL_VERT_TLX'], $page['TL_VERT_TLY'], $page['TL_VERT_BRX'], $page['TL_VERT_BRY'], $image, $page['VERT_WIDTH']);
$b[] = horiliney($page['TL_HORI_TLX'], $page['TL_HORI_TLY'], $page['TL_HORI_BRX'], $page['TL_HORI_BRY'], $image, $page['HORI_WIDTH']);
$b[] = vertlinex($page['TR_VERT_TLX'], $page['TR_VERT_TLY'], $page['TR_VERT_BRX'], $page['TR_VERT_BRY'], $image, $page['VERT_WIDTH']);
$b[] = horiliney($page['TR_HORI_TLX'], $page['TR_HORI_TLY'], $page['TR_HORI_BRX'], $page['TR_HORI_BRY'], $image, $page['HORI_WIDTH']);
$b[] = vertlinex($page['BL_VERT_TLX'], $page['BL_VERT_TLY'], $page['BL_VERT_BRX'], $page['BL_VERT_BRY'], $image, $page['VERT_WIDTH']);
$b[] = horiliney($page['BL_HORI_TLX'], $page['BL_HORI_TLY'], $page['BL_HORI_BRX'], $page['BL_HORI_BRY'], $image, $page['HORI_WIDTH']);
$b[] = vertlinex($page['BR_VERT_TLX'], $page['BR_VERT_TLY'], $page['BR_VERT_BRX'], $page['BR_VERT_BRY'], $image, $page['VERT_WIDTH']);
$b[] = horiliney($page['BR_HORI_TLX'], $page['BR_HORI_TLY'], $page['BR_HORI_BRX'], $page['BR_HORI_BRY'], $image, $page['HORI_WIDTH']);
if ($compare == 0) {
return $b;
}
$xa = 0;
$xb = 0;
$xc = 0;
$ya = 0;
$yb = 0;
$yc = 0;
if ($b[0] != 0) {
$xa += $a['tlx'];
$xb += $b[0];
$xc++;
} else {
return false;
}
if ($b[2] != 0) {
$xa += $a['trx'];
$xb += $b[2];
$xc++;
} else {
return false;
}
if ($b[4] != 0) {
$xa += $a['blx'];
$xb += $b[4];
$xc++;
} else {
return false;
}
if ($b[6] != 0) {
$xa += $a['brx'];
$xb += $b[6];
$xc++;
} else {
return false;
}
if ($b[1] != 0) {
$ya += $a['tly'];
$yb += $b[1];
$yc++;
} else {
return false;
}
if ($b[3] != 0) {
$ya += $a['try'];
$yb += $b[3];
$yc++;
} else {
return false;
}
if ($b[5] != 0) {
$ya += $a['bly'];
$yb += $b[5];
$yc++;
} else {
return false;
}
if ($b[7] != 0) {
$ya += $a['bry'];
$yb += $b[7];
$yc++;
} else {
return false;
}
$c[0] = round($xb / $xc) - round($xa / $xc);
$c[1] = round($yb / $yc) - round($ya / $yc);
return $c;
}