智能车制作

标题: 动态调整阈值的算法 [打印本页]

作者: Blazar55 时间: 2018-8-5 09:07
标题: 动态调整阈值的算法
大家有没有不同环境下，动态调整小车阈值的算法，能给我发一份么。

作者: Quixote 时间: 2018-8-5 14:22
本帖最后由 Quixote 于 2018-8-5 14:24 编辑

         uint8 perline_aver_pixelNumber = 0;uint8 perline_jump_max2min = 0;uint32 AllPixel_Counter = 0;
         uint8 maxPixel = 0;uint8 minPixel = 255;uint8 BookLineNumber = 0;//记录的行数
         for (uint16 loop = 0; loop < constNum_X_MaxCounter; loop++)//循环开始
         {
            if(0 != m_ImageBeholder_Data[y_ctr][loop])
            {
                  BookLineNumber ++;AllPixel_Counter += m_ImageBeholder_Data[y_ctr][loop];
                  if (m_ImageBeholder_Data[y_ctr][loop] > maxPixel){ maxPixel = m_ImageBeholder_Data[y_ctr][loop]; }
                  if (m_ImageBeholder_Data[y_ctr][loop] < minPixel){ minPixel = m_ImageBeholder_Data[y_ctr][loop]; }
            }
         }//计数循环结束
         perline_aver_pixelNumber = AllPixel_Counter / BookLineNumber;//均值
         perline_jump_max2min = maxPixel - minPixel;//差值
         perLine_JumpNumVaild = (uint8)((float)perline_jump_max2min * 0.4f);//两个跳变值
         perLine_JumpNumNonVaild = (uint8)((float)perline_aver_pixelNumber * 0.4f);//两个跳变值

         sint16 n_jumpVar = m_ImageBeholder_Data[y_ctr][x_startPos] -
                           m_ImageBeholder_Data[y_ctr - 1][x_startPos];
         sint16 absn_jumpVar = __ABS(n_jumpVar);
         if ((absn_jumpVar > perLine_JumpNumVaild)&&(absn_jumpVar > perLine_JumpNumNonVaild))
         {
            if(n_jumpVar < 0)
            {
                  LastSide.Last_BlackLine_suddenlyHappen = y_ctr;//本次是
                  LastSide.hasHappened_Once = 1;
                  isMaybefoundShutDown = 1;
                  //break;这里找到了一个黑点
            }
         }

作者: 来一杯烈酒 时间: 2018-8-5 21:33
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