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Combining Scripts (Read 1000 times)

Brodie

Combining Scripts
Feb 14^th, 2010, 6:14pm

Hey,

I've two different processing scripts in two different documents. One simply takes an pic of what's on the web cam and saves it once the mouse is clicked. The other takes an image and applies a mask and effect to it.

I am looking to combine these so when you do the first one mentioned—and take a picture, then you can click again and import that picture so it can be used with the second part mentioned above. I hope that wasn't confusing.

Been struggling with this for a few hours. Angry

Here's the two scripts
First:
Code:

import processing.video.*;

Capture cam;

float x = 0;
float numFrames = 1;

void setup()  {
  size(640, 480);
  cam = new Capture(this, 640, 480);
}

void draw()  {
  if (cam.available() == true) {
  cam.read();
  image(cam, 0, 0);
  if (mouseButton == LEFT)
    saveFrame("1.jpg");
  }
}

Second:
Code:

// Start Processing Eye
void setup()  {
  size(640, 480);
}



void draw()  {
  background(204);
  if (mouseButton == LEFT) {
//  Get Image, Crop and Copy
  PImage cam;
  cam = loadImage("1.jpg");
  image(cam, 0, 0);
  copy(140, 100, 340, 200, 380, 220, 340, 200);
  
// Mask
  PImage snapMask = loadImage("1mask.jpg");
  cam.mask(snapMask);
  image(cam, 0, 0); 
  }  else  {
    fill(0);
  }
}

Not looking for anyone to do this—just some help.

TfGuy44

Re: Combining Scripts
Reply #1 - Feb 14^th, 2010, 7:39pm

Quote:

Not looking for anyone to do this—just some help.

Aww...

Ok, so, you should have a boolean that tracks if a frame has been saved. When mousePressed() is called, check that boolean to see if there is a saved frame. If there isn't one, save one and set the boolean to true. If there is one, apply the mask stuff and set the boolean to false.

I also suggest that your PImage variable in the second program be renamed to something other than cam, since that's the name of the camera from the first one. It could get confusing if they are named the same thing.

Posting what you have of a combined version of the code might also be quite useful.

Brodie YaBB Newbies Offline Posts: 5	Re: Combining Scripts Reply #2 - Feb 14^th, 2010, 10:00pm Hey tfGuy, renamed the "cam" for the PImage. I don't have a version combined code and can you explain how I'd do a boolean for this? I just started with Processing today.

Quark

Re: Combining Scripts
Reply #3 - Feb 15^th, 2010, 1:12am

First thing is to create global variables for the image etc otherwise they will only be available inside the method they are created e.g.

Code:

Capture cam;
PImage img, snapMask;
int status = 0;

void setup(){
   ...
}

Load the snapMask image in setup so you are not repeating this 60 times per second.

Then add the mousePressed method
Code:

void mousePressed(){

}

Inside this method you want the following logic

if the staus is 0
capture and save the image (img)
set status to 1
if the status is 1
apply the mask to img
set staus to 2
if status is 3
set status to 0

In the draw method you want the following logic

if the status is 0
display video output
if the status is 1
display the captured image
if the status is 3
display the image after the mask has been applied.

This should get you started.

Brodie

Re: Combining Scripts
Reply #4 - Feb 15^th, 2010, 8:45am

It's not working. I get cannot find class or type named "Capture". Did I not apply global variables to things properly—or at all?
Code:

Capture cam;
PImage img, snapMask;
int status = 0;

  void setup()  
  {
  size(640, 480);
  cam = new Capture(this, 640, 480);
  PImage snapMask = loadImage("1mask.jpg");
} 

void mousePressed()  
  {
  if (status == 0)
  saveFrame("1.jpg");
  set (status == 1);
}
  {
  if (status == 1)
  PImage snapMask = loadImage("1mask.jpg");
  set (status == 2);
  snap1.mask(snapMask);
  image(snap1, 0, 0);
}
}
  if (status == 3)
  set (status == 0);
}

void draw()
  {
if (status == 0)
  cam.read();
  image(cam, 0, 0);
if (status == 1)
  PImage snap1;
  snap1 = loadImage("1.jpg");
  image(snap1, 0, 0);
if (status == 3)
  PImage snapMask = loadImage("1mask.jpg");
  snap1.mask(snapMask);
  image(snap1, 0, 0);
}

PhiLho YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: Combining Scripts Reply #5 - Feb 15^th, 2010, 9:34am Brodie wrote on Feb 15^th, 2010, 8:45am: cannot find class or type named "Capture" Have you QuickTime properly installed

TfGuy44 Full Member Offline Posts: 209	Re: Combining Scripts Reply #6 - Feb 15^th, 2010, 11:24am I think the problem is more to do with the missing video library... Did you include this line? Quote: import processing.video.*;

Brodie

Re: Combining Scripts
Reply #7 - Feb 15^th, 2010, 12:07pm

Thanks tf, that's resolved and some other issues. But now I get The method set (int, int, int) in the type PApplet is not applicable for the arguments (boolean). I've marked the line it highlights below.
Code:

import processing.video.*;

Capture cam;
PImage img, snapMask;
int status = 0;

  void setup()  
  {
  size(640, 480);
  cam = new Capture(this, 640, 480);
  PImage snapMask = loadImage("1mask.jpg");
} 

void mousePressed()  
  {
  if (status == 0);
  saveFrame("1.jpg");
  set (status == 1);  //  It highlights this line
  
  if (status == 1);
  PImage snapMask = loadImage("1mask.jpg");
  set (status == 2);
  snap1.mask(snapMask);
  image(snap1, 0, 0);
}
}
  if (status == 3)
  set (status == 0);
}

void draw()
  {
if (status == 0)
  cam.read();
  image(cam, 0, 0);
if (status == 1)
  PImage snap1;
  snap1 = loadImage("1.jpg");
  image(snap1, 0, 0);
if (status == 3)
  PImage snapMask = loadImage("1mask.jpg");
  snap1.mask(snapMask);
  image(snap1, 0, 0);
}

Quark

Re: Combining Scripts
Reply #8 - Feb 15^th, 2010, 1:01pm

Brodie said
Quote:

Not looking for anyone to do this—just some help.

I took you at your word so rather than providing the actual code I stated the problem in structured English and expected you to convert to Java unfortunately you have loads of syntax errors.

The code below is syntactically correct and I suggest that you compare this with your code and see if you cam see where your code is incorrect. I cannot test the code to see if it does exactly what you want as I don't have a video source.

Have to go now let us know how you get on.

Code:

import processing.video.*;

Capture cam;
PImage snap1, snapMask;
int status = 0;

void setup()  
{
  size(640, 480);
  cam = new Capture(this, 640, 480);
  snapMask = loadImage("1mask.jpg");
} 

void mousePressed()  
{
  if (status == 0){
    saveFrame("1.jpg");
    status = 1;  //  It highlights this line
  }
  if (status == 1){
    snapMask = loadImage("1mask.jpg");
    status = 2;
  }
  snap1.mask(snapMask);
  image(snap1, 0, 0);

  if (status == 3)
    status = 0;
}

void draw()
{
  if (status == 0){
    cam.read();
    image(cam, 0, 0);
  }
  if (status == 1){
    PImage snap1;
    snap1 = loadImage("1.jpg");
    image(snap1, 0, 0);
  }
  if (status == 3){
    snapMask = loadImage("1mask.jpg");
    snap1.mask(snapMask);
  }
  if(snap1 != null){
    image(snap1, 0, 0);
  }
}

Brodie YaBB Newbies Offline Posts: 5	Re: Combining Scripts Reply #9 - Feb 15^th, 2010, 1:25pm It didn't work. I've picked up Processing: A Programming Handbook for Visual Designers and Artists and will try to figure this out. Don't want any more help. Thanks for your time Quark and tfGuy. I'll post anything later if it works.

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