I am getting undefined error in qr decoder Matlab code .

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VB

??? Undefined function or method 'BufferedImageLuminanceSource' for input arguments of type
'java.awt.image.BufferedImage'.
Error in ==> decode_qr at 55
 source =BufferedImageLuminanceSource(jimg);

Posted 5-Jun-14 1:31am

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Member 13412768 · Answer 1 · 2017-09-15T21:22:00

Hello, you have to download the 3.3 jars from (https://repo1.maven.org/maven2/com/google/zxing/javase/3.3.0/ and https://repo1.maven.org/maven2/com/google/zxing/core/3.3.0/). These functions are inside differente folders for this matlab code, so you have to change the imports in this way:

For encode function:

import com.google.zxing.qrcode.*;
import com.google.zxing.*;

For decode function:

import com.google.zxing.qrcode.*;
import com.google.zxing.client.j2se.*;
import com.google.zxing.*;
import com.google.zxing.common.*;
import com.google.zxing.Result.*;

There are another changes to do:

in function encode M_java.height and M_java.width are invalid, instead use M_java.getHeight(), M_java.getWidth()

Special thanks for Ari Bejarano (the Java's Master) and to Andres Puerto for developing this solution.