imagemagick - Running convert command of image magic using Java gives unable to load module error -


i have written class execute convert command of imagemagic.

public class imagemagicdemo {  public static void main(string[] argp){       processbuilder pb2 = new processbuilder("g:\\project\\installation\\imagemagic\\convert","g:\\demo\\image\\frame.jpg", "-resize", "20x20",             "g:\\demo\\image\\resizeimage\\frame1.jpg");     pb2.redirecterrorstream(true);      process p2;     try {         p2 = pb2.start();          bufferedreader br = new bufferedreader(new inputstreamreader(p2.getinputstream()));             string line = null;             while((line=br.readline())!=null){                 system.out.println(line);             }             system.out.println("2"+p2.waitfor());      } catch (exception e) {         // todo auto-generated catch block         e.printstacktrace();     }  }  }

but getting following response

convert.exe: unable open image `g:\demo\image\frame.jpg': no such file or directory @ error/blob.c/openblob/2692. convert.exe: unable load module `g:\project\installation\imagemagic\modules\coders\im_mod_rl_jpeg_.dll': specified module not found. @ error/module.c/openmodule/1282. convert.exe: no decode delegate image format `jpg' @ error/constitute.c/readimage/501. convert.exe: no images defined `g:\demo\image\resizeimage\frame1.jpg' @ error/convert.c/convertimagecommand/3212.

same problem .png file.i have installed imagemagick-6.9.1-2-q16-x64-dll.exe on window8. if run following command on command prompt 

convert -resize 1024x768 g:\\demo\\image\\frame.jpg g:\\demo\\image\\resizeimage\\frame1.jpg

it execute , copy resized image in destination folder.if knows please reply.

thanks

i can work, if change working directory executed run, using processbuilder#directory(file)

processbuilder pb = new processbuilder(                 "c:\\program files\\imagemagick-6.9.1-q16\\convert.exe",                 "c:\\path\to\large.png",                 "-resize", "1027x768",                 "c:\\path\to\small.png");  try {     pb.inheritio();     pb.redirecterrorstream();     pb.directory(new file("c:\\program files\\imagemagick-6.9.1-q16"));     process p = pb.start();     try (inputstream = p.getinputstream()) {         int in = -1;         while ((in = is.read()) != -1) {             system.out.print((char)in);         }     }     system.out.println("exited " + p.waitfor()); } catch (ioexception | interruptedexception ex) {     ex.printstacktrace(); }

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