CODEWITHSUNDEEP
javaawtrobot
Dan
Dan

Reputation: 27

Speeding up pixel recognition in java

i am writing a program that requires me to scrape data from the screen, i am doing this by going over each pixel in the screen and saving the color but this is a very expencive opration and takes along time

the folowing code is what i am using to scrape the data

try
{
     Robot r = new Robot();
     for( int a = 0; a < height; a++ )
     {
          for ( int b = 0; b < width; b++ )
          {
               Color p = r.getPixelColor(a, b);
               int red = p.getRed();
               int blue = p.getBlue();
               int green = p.getGreen();

               screen[a][b][0] = red;
               screen[a][b][1] = blue;
               screen[a][b][2] = green;
           }
      }
}
catch( AWTException e ) {}

is there any way i can improve this or are there any alternatives to using this class or method

Upvotes: 0

Views: 380

Answers (1)

Aaron Digulla
Aaron Digulla

Reputation: 328594

Use Robot.createScreenCapture() to create a BufferedImage of a specific area in a single method call.

If that doesn't work for security reasons, your second option is to modify the sources to make it render the UI in a BufferedImage which you can then clone to analyze it (or analyze it directly if you can prevent changes to it).

Upvotes: 1

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