小编ori*_*nof的帖子

如何识别不同颜色的常规条纹的存在与否,但扫描图像内部的非常非常非常浅粉色到黑色(位图200x200dpi 24位).举几个例子.

例1

uno http://i44.tinypic.com/k20get.jpg

示例2(除了最后一列的第二行中的7之外的所有列中的行)

由于http://i43.tinypic.com/ncbby0.jpg

现在尝试识别(使用python语言)是否存在至少5-10个像素存在从白色到每个条带的不同颜色,但是,并不总是起作用,因为扫描的图像质量不高并且条带改变颜色非常类似于它周围的颜色.

谢谢.

我正在使用带有symfony 2.1的propel master-dev.有可能写出类似的东西吗？另外,如何在select语句中添加别名.

    $products = ProdottinewQuery::create()
      ->leftJoinWith('Prodotticolori')
      ->leftJoinWith('Alberocategorie')
      ->leftJoinWith('Brand')
      ->leftJoinWith('Prodottimateriali')
      ->leftJoinWith('Prodottigroffatura')
      ->select(array('id',
                     'codice',
                     'nomeEng',
                     'Alberocategorie.nomeeng' => 'category',
                     'Prodotticolori.coloreeng' => 'color',
                     'Brand.brand' => 'brand',
                     'Prodottimateriali.materialeeng' => 'material',
                     'Prodottigroffatura.groffaturaeng' => 'groffage'))
      ->orderById()
      ->limit($howmany)
      ->find();

我正在开发一个使用sqlite的简单应用程序,问题是以下代码

/*
...
*/
QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
db.setDatabaseName("hellogoodbye"); 

if (!db.open()) {
        QMessageBox::critical(0, qApp->tr("Impossibile aprire il database"),
                              qApp->tr("Non è stato possibile aprire il"
                                       "database"), QMessageBox::Cancel);}

给我吗:

C:\Qt\2010.04\August-build-desktop/../August/main.cc:17: undefined reference to `_imp___ZN12QSqlDatabase17defaultConnectionE' 
C:\Qt\2010.04\August-build-desktop/../August/main.cc:17: undefined reference to `_imp___ZN12QSqlDatabase11addDatabaseERK7QStringS2_' 
C:\Qt\2010.04\August-build-desktop/../August/main.cc:17: undefined reference to `_imp___ZN12QSqlDatabaseD1Ev' 
C:\Qt\2010.04\August-build-desktop/../August/main.cc:18: undefined reference to `_imp___ZN12QSqlDatabase15setDatabaseNameERK7QString' 
C:\Qt\2010.04\August-build-desktop/../August/main.cc:19: undefined reference to `_imp___ZN12QSqlDatabase4openEv' 
C:\Qt\2010.04\August-build-desktop/../August/main.cc:27: undefined reference to `_imp___ZN12QSqlDatabaseD1Ev' 
C:\Qt\2010.04\August-build-desktop/../August/main.cc:27: undefined reference to `_imp___ZN12QSqlDatabaseD1Ev' 

我正在使用QTCreator.有人可以帮帮我吗？