JAI dct data interpretation

Question

DCT transforms data form space domain to frequency domain.
I 've appliet JAI dct operator to an image.
Then, i tried to inspect the values of the dct output:
This is my code:
final String filename = "sample\\viola.jpg";          
          RenderedImage src = (RenderedImage)JAI.create("fileload", filename);
          int width  = src.getWidth();
          int height = src.getHeight();          
          ParameterBlock pb = (new ParameterBlock()).addSource(src);
          PlanarImage dct = JAI.create("dct", pb, null);     
          int w = dct.getWidth();
          int h = dct.getHeight();
          // obtain information in frequency domain
          int dctData[] =
               dct.getData().getPixels(0, 0, w, h, (int[])null);
          double[] pixels = new double[dctData.length];
          for (int i = 0; i < w; i++)
               System.out.println(dctData[i] + ", ");Now, i want to say, if there's a way to interpret this result and,
for understand what they means.
For example, first dct data otput are the follow integers: 51518, 52896, 54628...
Then, i want to say what happens if i set to 0 the dct data falling within a certain range, (thus removing some frequencies), and i re-apply dct...

Answer 1

Hi,
In MD04 0001 is nothing but schedule line, if the item contains several schedule lines then you can observe the difference. or select the line in MD04 and click on details button you can observe the sequence of order number, item number and schedule line number.
Hope this will answer your question, if yes reward points.
Venkat Cheedalla