Hello all!

I'm trying to draw a grid 3x3 over an image I'm capturing with my webcam, but unfortunatelly I'm only being able to draw some points on the first line of the image.

I'm also flipping my acquired image over the x-axis in order to see me moving to the right if I'm moving to the right, and to the left if I'm moving left. If I don't flip the image I can get a framerate around 35 fps, and flipping it I can get around 25 fps. Is it possible to speed up my code or do this flip by other faster means?

Any help on this subjects?

Thank you very much in advance.

Best regards!

My code is as follows:

import processing.opengl.*;
import JMyron.*;

JMyron m;
PImage img;

void setup() {
 size(320,240,OPENGL);
 m = new JMyron();
 m.start(width,height);
 img = createImage(width,height,ARGB);
 noFill();
 stroke(255,0,0);
}

void draw() {
 background(0);
 
// code for drawing the lines
 for(int i=1; i<3; i++){
   stroke(255,0,0);
   line(width/3*i,0,width/3*i,height);
 }

 m.update();

//code for flipping
 int[] imgNormal = m.cameraImage();
 this.loadPixels();
 for(int i=1; i<width;i++){
   for(int j=1;j<height;j++){
     this.pixels[(m.width() - i - 1) + j * m.width()] = imgNormal[(i) + j * m.width()];
   }
 }
 this.updatePixels();

 arraycopy(m.cameraImage(),img.pixels);
 img.updatePixels();

 image(img,0,0);
 print(frameRate +"\n");
}

Hello!

Thank you very much for your help.

I'm now achieving ~38 fps, but you did not change the code for flipping the image, right?

My computer has a Intel Core 2 Duo CPU @ 2.50GHz with 3GB of RAM.