将自己的haarcascade转换为AS for marilena / flash

Question

我的问题是:如何将我自己的haarcascade用于marilena + flartoolkit？我疯狂地在谷歌上搜索，在这里偶然发现了以下内容：

http://www.moment77.se/flash-classes/code-snippets/convert-haar-cascades-from-xml-to-actionscript/

然而，PHP脚本就是不起作用，屏幕仍然是空白的，我也尝试过我朋友的服务器。

我还能做什么？或者是其他人能够执行它？还有别的办法吗？

Answer 1

我通过做两件事让它工作。

first echo

• Change中的引号省略

1. 用于获取count (至少对于我的示例数据)

的节点的名称

最终的代码如下所示

<?php

$xml = simplexml_load_file('haarcascades.xml');
$stages = $xml->haarcascade_frontalface_alt->stages->_;

for($s = 0; $s < count($stages); $s++){
  $trees = $stages[$s]->trees->_;
  if($s == 0)
    echo "

    tree = firstTree = new FeatureTree(". $stages[$s]->stage_threshold.");";
  else
    echo "

    tree = tree.next = new FeatureTree(\". $stages[$s]->stage_threshold.\");";

  for($t = 0; $t < count($trees); $t++){
    $r1 = str_replace(" ", ",", trim(substr($trees[$t]->_->feature->rects->_[0], 0, strlen($trees[$t]->_->feature->rects->_[0])-1)));
    $r2 = str_replace(" ", ",", trim(substr($trees[$t]->_->feature->rects->_[1], 0, strlen($trees[$t]->_->feature->rects->_[1])-1)));
    $th = $trees[$t]->_->threshold;
    $lv = $trees[$t]->_->left_val;
    $rv = $trees[$t]->_->right_val;
    if($t == 0)
      echo "
      feature = tree.firstFeature = new Feature2Rects($th, $lv, $rv, [$r1], [$r2]);";
    else if($t == (count($trees) -1))
      echo "
      feature.next = new Feature2Rects($th, $lv, $rv, [$r1], [$r2]);";
    else
      echo "
      feature = feature.next = new Feature2Rects($th, $lv, $rv, [$r1], [$r2]);";
  }
}

注意到创建计数时的$xml->haarcascade_frontalface_alt使用情况了吗？这一点被改变了，因为我使用的xml在顶部看起来像这样

<?xml version="1.0"?>
<opencv_storage>
    <haarcascade_frontalface_alt type_id="opencv-haar-classifier">
        <size>20 20</size>
        <stages>

您需要将该名称更改为顶级节点的名称。

输出如下所示(但更长)

feature = tree.firstFeature = new Feature2Rects(-0.0951507985591888, 0.6470757126808167, 0.4017286896705627, [5,3,10,9,-1], [5,6,10,3,3]);
feature = feature.next = new Feature2Rects(6.2702340073883533e-003, 0.3999822139739990, 0.5746449232101440, [15,2,4,10,-1], [15,2,2,10,2]);