ImageMagick: Im4Java Running from eclipse from MacBook is showing the exception

Question

I'm trying to run im4java to compare the images but I'm getting the below exception message.

I have followed the steps to add ImageMagick as in this link: https://www.imagemagick.org/script/download.php#macosx

I was getting the same error so, I added the environmental variable in the run configurations of my eclipse as:

DYLD_LIBRARY_PATH=/Users/siva/Downloads/ImageMagick-7.0.5/lib and started running but still i'm getting the same error message:

I also tried:

 System.setProperty("java.library.path", "/Users/siva/Downloads/ImageMagick-7.0.5/bin/magick");

If anyone has tried using imageMagick on Mac please suggest me what are the steps I have to do.

I was able to run the below command from the terminal successfully: compare imageone.png imagetwo.png diffimage.png

import java.io.IOException;
import java.math.BigDecimal;
import java.util.ArrayList;

import org.apache.commons.lang.StringUtils;
import org.im4java.core.IM4JavaException;
import org.im4java.core.IMOperation;
import org.im4java.core.ImageMagickCmd;
import org.im4java.core.Info;
import org.im4java.process.ArrayListOutputConsumer;

public class UseImageM {
 private static final String COMPARE_COMMAND = "compare";
 private static final String ABSOLUTE_ERROR = "AE";

 private static String imageOnePath = "/Users/siva/Documents/imageEclipse/UsingImagemagick/screenshot.png";
 private static String imageTwoPath = "/Users/siva/Documents/imageEclipse/UsingImagemagick/screenshotfinal.png";
 private static String outputImageName = "outputoftheimageCompare";
 private static final int COUNT_OF_DECIMAL = 10;

 public static void main(String[] args) {
  IMOperation imOperation = new IMOperation();
  imOperation.metric(ABSOLUTE_ERROR);
  imOperation.addImage(imageOnePath);
  imOperation.addImage(imageTwoPath);
  imOperation.addImage(outputImageName);

  ImageMagickCmd compare = new ImageMagickCmd(COMPARE_COMMAND);
  ArrayListOutputConsumer outputConsumer = new ArrayListOutputConsumer();
  compare.setOutputConsumer(outputConsumer);
  BigDecimal diffPercentage = BigDecimal.ZERO;

  Info imageInfo;
  long imageSize = 0;
  try {
   imageInfo = new Info(imageTwoPath, true);

   imageSize = imageInfo.getImageWidth() * imageInfo.getImageHeight();

   compare.run(imOperation);

   final ArrayList<String> errorText = compare.getErrorText();
   if (errorText.size() == 1) {
    final BigDecimal diffCount = new BigDecimal(errorText.get(0));
    if (!BigDecimal.ZERO.equals(diffCount)) {
     diffPercentage = diffCount.divide(
       new BigDecimal(imageSize), COUNT_OF_DECIMAL,
       BigDecimal.ROUND_DOWN);
    }
   }
  } catch (final IOException | InterruptedException e) {
   System.out.println((String.format(
     "Exception happened in comparison between %s and %s.",
     imageOnePath, imageTwoPath) + e));

  } catch (final IM4JavaException e) {
   e.printStackTrace();

   // error message
   if (!StringUtils.isNumeric(compare.getErrorText().get(0))) {
    final String errorMsg = String.format(
      "Exception happened in comparison between %s and %s.",
      imageOnePath, imageTwoPath);
    System.out.println(errorMsg + e);

   }

   final BigDecimal diffCount = new BigDecimal(compare.getErrorText()
     .get(0));
   diffPercentage = diffCount.divide(new BigDecimal(imageSize),
     COUNT_OF_DECIMAL, BigDecimal.ROUND_DOWN);
  }

  System.out.println(diffPercentage);

 }

}


Console Logs:

org.im4java.core.InfoException: org.im4java.core.CommandException: java.io.IOException: Cannot run program "identify": error=2, No such file or directory
 at org.im4java.core.Info.getBaseInfo(Info.java:360)
 at org.im4java.core.Info.<init>(Info.java:151)
 at UseImageM.main(UseImageM.java:36)
Caused by: org.im4java.core.CommandException: java.io.IOException: Cannot run program "identify": error=2, No such file or directory
 at org.im4java.core.ImageCommand.run(ImageCommand.java:219)
 at org.im4java.core.Info.getBaseInfo(Info.java:342)
 ... 2 more
Caused by: java.io.IOException: Cannot run program "identify": error=2, No such file or directory
 at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
 at org.im4java.process.ProcessStarter.startProcess(ProcessStarter.java:407)
 at org.im4java.process.ProcessStarter.run(ProcessStarter.java:312)
 at org.im4java.core.ImageCommand.run(ImageCommand.java:215)
 ... 3 more
Caused by: java.io.IOException: error=2, No such file or directory
 at java.lang.UNIXProcess.forkAndExec(Native Method)
 at java.lang.UNIXProcess.<init>(UNIXProcess.java:247)
 at java.lang.ProcessImpl.start(ProcessImpl.java:134)
 at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
 ... 6 more
Exception in thread "main" java.lang.NullPointerException
 at UseImageM.main(UseImageM.java:60)