尝试执行运行长度平滑算法的C ++ [英] Attempt to implementation Running Length Smoothing Algorithm in C++

问题描述

这是我的老问题涉及到<一个href="http://stackoverflow.com/questions/21554431/implementation-run-length-smoothing-algorithm-in-c">RLSA在C ++中，但我还没有得到任何帮助呢。

This is my old question related to RLSA in C++, but I havent got any help yet.

我试图实现从MATLAB中code到C ++

I tried to implement the code from Matlab to C++

该算法的描述：

http://crblpocr.blogspot.fr/ 2007/06 /游程平滑算法，rlsa.html 的http://crblpocr.blogspot.fr/2007/06/determination-of-run-length-smoothing.html

目前在Matlab RLSA执行此线程：

There is RLSA implementation in Matlab by this thread :

http://mathworks.cn/matlabcentral/newsreader/view_thread/318198

MatLab的code

MatLabCode

    hor_thresh=20;
zeros_count=0;
one_flag=0;
hor_image=image;
for i=1:m
    for j=1:n
        if(image(i,j)==1)
            if(one_flag==1)
                if(zeros_count<=hor_thresh)
                    hor_image(i,j-zeros_count:j-1)=1;
                else
                    one_flag=0;
                end
                zeros_count=0;
            end
            one_flag=1;
        else 
            if(one_flag==1)
                zeros_count=zeros_count+1;
            end
        end
    end
end

我想用C ++ code

I tried to implement in C++ Code

                int hor_thres = 22;
                int one_count = 0;
                int zero_flag = 0;
                Mat tmpImg = Mat(Img.size(), CV_8UC1, Scalar(0, 0, 0));
                for (int j = 0; j<Img.rows; j++){
                    for (int i = 0; i<Img.cols; j++){
                        if (Img.at<uchar>(j, i) == 0)
                        {
                            if (zero_flag == 1)
                            {
                                if (one_count <= hor_thres)
                                {           
                                    tmpText(cv::Range(j - zero_count, j), cv::Range(i, i+1)).setTo(cv::Scalar::all(255));
// I want to do the same thing in Matlab as this  image(i,j-one_count:j-1)=0;
                                }
                                else
                                {
                                    zero_flag = 1;
                                }
                                one_count = 0;
                            }
                            zero_flag = 1;
                        }
                        else
                        {
                            if (zero_flag == 1)
                            {
                                one_count = one_count + 1;
                            }
                        }
                    }
                }

这一次估计不会没有错误，但结果......

This time no error but the result is not expected ..

问题是我想写的C ++ $ C C同样的事情$为

The issue is the way i want to write c++ code the same thing as

Matlab的

tmpImg(i,j-one_count:j-1)=0;

C ++

C++

tmpText(cv::Range(j - zero_count, j), cv::Range(i, i+1)).setTo(cv::Scalar::all(255));

Anyidea ???

Anyidea???

另一件事是在Matlab 1索引开始而C ++从0开始。

感谢

推荐答案

所有谢谢@Roger罗兰我终于实现这个算法，希望可以帮助那些谁需要它。

all thank you @Roger Rowland I finally implement this algorithm, hope it could help those who need it.

                int hor_thres = 22;
                int zero_count = 0;
                int one_flag = 0;
                for (int i = 0; i<tmpImg.rows; i++){
                    for (int j = 0; j<tmpImg.cols; j++){
                        if (tmpImg.at<uchar>(i, j) == 255)
                        {
                            if (one_flag == 255)
                            {
                                if (zero_count <= hor_thres)
                                {


                                    tmpImg(cv::Range(i, i + 1), cv::Range(j - zero_count, j)).setTo(cv::Scalar::all(255));
                                                    }
                                else
                                {
                                    one_flag = 0;
                                }
                                zero_count = 0;
                            }
                            one_flag = 255;
                        }
                        else
                        {
                            if (one_flag == 255)
                            {
                                zero_count = zero_count + 1;
                            }
                        }
                    }
                }

未来的建议是，以改善这个实现在不使用循环。

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