i am trying to convert MATLAB code in java for that i am using OpenCv for android.
i want to implement this function of MATLAB in java im2double(Image). is their any ready-made function in opencv or java to do so in android. or we have to implement our own function kindly help if anyone has implemented this already. i have searched Google but didn't find any solutions.
Yes, you can use the equivalent to C++ Mat::convertTo() function, which is implemented in Java as
public void assignTo(Mat m, int type)
where m is the destination matrix and type is the data type/depth you want to convert your data to (in this case I think you want to use CV_64FCX, where 'X' is the number of channels).
Hope that it helps!
http://docs.opencv.org/java/org/opencv/core/Mat.html#convertTo(org.opencv.core.Mat,%20int)
Mat someformat; // src
Mat doubleformat; // dst
someformat.convertTo( doubleformat, CvType.CV_64F );
note, that this just changes the type/depth of the single elements, not the number of channels
cv::Mathold?