I'd like to save a jpg image from a high resolution camera.  I'm using JMyron to capture a video stream, but I'm unable to use a small window to capture a high resolution image.  If my camera is capable of 1728 x 1152 resolution (or higher), then how can I capture this resolution without using a window of size(1728,1152)?

For example:

import JMyron.*;
JMyron m;//a camera object

void setup(){
 size(160,120);//set window size lower than camera resolution (testing with Logitech Quickcam)
 
 m = new JMyron();//make a new instance of the object
 m.start(320,240);//start a capture at 320x240.  Used getForcedWidth() & getForcedHeight() to test max resolutions
}

void draw(){
 if ( mousePressed == false )
           {
 m.update();
 m.imageCopy(pixels);
 updatePixels();
 }
}

public void stop(){
 m.stop();//stop the object
 super.stop();
}

void mousePressed(){
 saveFrame("images/test.jpg");
}

thank you!

Hmmm.  I updated the code based on Dan's comments.  I'm able to save a higher resolution image, but the image and the window are both blank.  I'm guessing that I'm not passing the pixels properly (or at all), but I don't know how to do that.  

Here's my code.  What am I missing?


import JMyron.*;
JMyron m;//a camera object

PImage img;

void setup() {
 size(160,120);//set window size lower than camera resolution (testing with Logitech Quickcam)
 m = new JMyron();//make a new instance of the object
 m.start(320,240); //the max resolution of the quickcam
 img = createImage(320,240,RGB);
}  

void draw() {
 m.imageCopy(img.pixels);//the window is blank grey.  No image
}

void mousePressed() {
 img.save("file.jpg");//this image is black
}

I've made a few updates and can now save a higher resolution image than what the window size is.  However, the image displayed in the window is distorted. I think that the pixels being sent to the window match the higher resolution, so they overlap.  Any ideas on how to send the lower resolution image to the window?  I don't know what to do with the suggestion of using img.updatePixels().  Thanks for your help!


import JMyron.*;
JMyron m;//a camera object
 
PImage img;
 
void setup() {
 size(160,120);//set window size lower than camera resolution (testing with Logitech Quickcam)
 m = new JMyron();//make a new instance of the object
 m.start(320,240); //the max resolution of the quickcam
 img = createImage(320,240,RGB);
}  
 
void draw() {
 m.update();
 m.imageCopy(img.pixels);//the window displays a distorted image

 int[] img = m.image(); //get the normal image of the camera  
 loadPixels();
       for(int i=0;i<(width)*(height);i++){ //loop through all the pixels
           pixels[i] = img[i]; //draw each pixel to the screen      
         }  
 updatePixels();
}
 
void mousePressed() {
 img.save("file.jpg"); //this image is 320x240
}