type = 'jpeg';
$this->original_img = imagecreatefromjpeg($img_file_path);
} elseif (strstr($size_arr['mime'], 'gif')) {
$this->type = 'gif';
$this->original_img = imagecreatefromgif($img_file_path);
} elseif (strstr($size_arr['mime'], 'png')) {
$this->type = 'png';
$this->original_img = imagecreatefrompng($img_file_path);
}
$this->width = $size_arr[0];
$this->height = $size_arr[1];
//各ピクセルの色情報を入手
for ($i = 0; $i < $this->width; $i++) {
for ($j = 0; $j < $this->height; $j++) {
$this->pix_info_arr[$j][$i] = $this->_createColorInfo($i, $j);
}
}
}
function _createColorInfo($x, $y) {
$rgb = imagecolorat($this->original_img, $x, $y);
$return_arr['r'] = ($rgb >> 16) & 0xFF;
$return_arr['g'] = ($rgb >> 8) & 0xFF;
$return_arr['b'] = $rgb & 0xFF;
return $return_arr;
}
}
if ($_POST['submit']) {
if (is_uploaded_file($_FILES['upload-file']['tmp_name'])) {
$ini_file_name = $_FILES['upload-file']['name'] .'_'. date('YmdHis');
$ini_file_path = dirname(__FILE__) .'/img/'. $ini_file_name;
move_uploaded_file($_FILES['upload-file']['tmp_name'], $ini_file_path);
//自作クラスのオブジェクト作成
$img = new MyImage($ini_file_path);
//モザイク１マスの大きさ設定
if ($_POST['x'] && (int)$_POST['x'] > 2) {
$tile_size_x = (int)$_POST['x'];
} else {
$tile_size_x = 10;
}
if ($_POST['y'] && (int)$_POST['y'] > 2) {
$tile_size_y = (int)$_POST['y'];
} else {
$tile_size_y = 10;
}
//モザイクの数を決定
$x_num = intval(ceil($img->width / $tile_size_x));
$y_num = intval(ceil($img->height / $tile_size_y));
$new_pix_info_arr = array();
//モザイクのマスごとに色の平均値を求める
for ($x = 0; $x < $x_num; $x++) {
for ($y = 0; $y < $y_num; $y++) {
$x_begin = $x * $tile_size_x;
$y_begin = $y * $tile_size_y;
for ($i = $x_begin; $i < min($x_begin + $tile_size_x, $img->width); $i++) {
for ($j = $y_begin; $j < min($y_begin + $tile_size_y, $img->height); $j++) {
$tmp = $img->pix_info_arr[$j][$i];
$new_pix_info_arr[$y][$x]['r'] += $tmp['r'];
$new_pix_info_arr[$y][$x]['g'] += $tmp['g'];
$new_pix_info_arr[$y][$x]['b'] += $tmp['b'];
}
}
//モザイクが途中で切れた場合、そのモザイクの縦、横ピクセル数を修正
if (($x + 1) * $tile_size_x > $img->width) {
$div_x = $img->width % $tile_size_x;
} else {
$div_x = $tile_size_x;
}
if (($y + 1) * $tile_size_y > $img->height) {
$div_y = $img->height % $tile_size_y;
} else {
$div_y = $tile_size_y;
}
//色の平均値を計算
$new_pix_info_arr[$y][$x]['r'] = intval($new_pix_info_arr[$y][$x]['r']/($div_x * $div_y));
$new_pix_info_arr[$y][$x]['g'] = intval($new_pix_info_arr[$y][$x]['g']/($div_x * $div_y));
$new_pix_info_arr[$y][$x]['b'] = intval($new_pix_info_arr[$y][$x]['b']/($div_x * $div_y));
}
}
$new_tile_size_x = $tile_size_x;
$new_tile_size_y = $tile_size_y;
//新しい画像を作って、モザイクを並べていく
$new_img = imagecreatetruecolor($img->width, $img->height);
for ($i = 0; $i < $x_num; $i++) {
for ($j = 0; $j < $y_num; $j++) {
$color = imagecolorallocate($new_img, $new_pix_info_arr[$j][$i]['r'], $new_pix_info_arr[$j][$i]['g'], $new_pix_info_arr[$j][$i]['b']);
$tmp_x = min(($i + 1) * $new_tile_size_x, $img->width) - 1;
$tmp_y = min(($j + 1) * $new_tile_size_y, $img->height) - 1;
imagefilledrectangle($new_img, $i * $new_tile_size_x, $j * $new_tile_size_y, $tmp_x, $tmp_y, $color);
}
}
//png画像ファイルを作成
imagepng($new_img, 'img/hoge.png');
$html = '
';
echo $html;
}
} else {
$html = '
画像ファイルをアップロードして下さい。
';
echo $html;
}
?>