Processing Forum

Invitation to take part to my project

[2 Replies]
- 15-Apr-2011 11:35 AM
- Forum: Events and Opportunities
Hi!

I am working on a project called b2z, inspired by Jacques Lacan’s idea of “object a”.

My project is based on virtual, intangible or simply conceptual data. It is supposed to grow in an imaginary space.

Please enter b2z area!

1.pink space

It is about symbolically give a free portion of your hard drive to b2z project.

See detailed instructions at te following address:

http://www.b2z.eu/pinkspace

2.places

Contribute to counting all the places where b2z won’t take place:

http://www.b2z.eu/places

3.b2z imaginary gallery

Join b2z virtual image database:

http://www.b2z.eu/gallery

4.recycling

Convert 7 days of your computer’s recycle bin into valuable content in b2z area:

http://www.b2z.eu/recycling

Thanks a lot for your contribution, it would really help me a great lot!

Agathe

G4P lib with video file

[1 Reply]
- 19-Feb-2011 12:26 PM
- Forum: Programming Questions
Hi,
Basically I wish to create cascading windows, displaying a small video file, so
that the popup windows would fill the viewers desktop.
Is this possible using the following createWindows method?
Any help would be most welcome!
Thankx
2. import guicomponents.*;
4. private GWindow[] window;
6. void setup(){
7. size(300,225);.mov
8. createWindows();
9. }
11. void draw(){
12. }
14. public void createWindows(){
15. int col;
16. window = new GWindow[3];
17. for(int i = 0; i < 3; i++){
18. window[i] = new GWindow(this, "Window "+i, 130+i*210, 100+i*100,300,225,false, JAVA2D);
19. }
20. }

Simply save to Desktop

[5 Replies]
- 14-Feb-2011 12:07 PM
- Forum: Programming Questions
I am using this little sketch to resave the same image 1000 times.

What I am trying to figure out now is how to save the jpgs to Desktop instead of the sketch folder (so that the icons fill the screen).
2. int openFile = 1; //name the source image as 1.jpg
3. int saveFile = 2;
4. int x, y=0;
5. PImage img;
7. void setup(){
8. size(386, 600);//image size
9. }
11. void draw(){
13. img = loadImage(openFile+".jpg");
14. image(img, x, y, img.width, img.height);
15. img.save(saveFile+".jpg");
16. openFile = saveFile;
17. saveFile = saveFile+1;
19. print("opening"+openFile);
20. print(" saving:");
21. println(saveFile+"...done!");
23. if (saveFile>10000){
24. exit();
25. }
26. }
Thankx for your help!

Intended Quality Loss

[0 Replies]
- 18-Jan-2011 12:17 PM
- Forum: Programming Questions
Hi!

I want to open, save, recompress and load again an image repeatedly in order to accumulate a visible loss in quality each time mouse is pressed.

That can only works if the image is closed, re-opened, edited and saved again.

Can anybody help please???

Here is a starting point I am unsatisfied with cause there is no noticeable alteration of the original image:
2. int openFile = 1; //name the source image as 1.jpg
3. int saveFile = 2;
4. int x, y=0;
5. PImage img;
7. void setup(){
8. size(386, 600);//image size
9. }
11. void draw(){
12. }
14. void mousePressed(){
15. //can also paste the following code into draw for automation
16. img = loadImage(openFile+".jpg");
17. image(img, x, y, img.width, img.height);
18. img.save(saveFile+".jpg");
19. openFile = saveFile;
20. saveFile = saveFile+1;
22. print("opening"+openFile);
23. print(" saving:");
24. println(saveFile+"...done!");
26. if (saveFile>1000){
27. exit();
28. }
29. }
Thanks a lot!

How to get average color of pixels from video frames?

[1 Reply]
- 12-Jan-2011 06:03 PM
- Forum: Core Library Questions
Hi!
I wonder how to get and display the average color between the frames of a movie on the one hand, and my webcam on the other hand.

I have tried to use Ben Fry's ColorSorting Example but couldn't make it work for both videos: only for the cam.

I know there must be a problem in my sketch but I am so unfamiliar with coding...
2. void draw() {
3. if (myMovie.available()) {
4. myMovie.read();
6. background(0);
7. noStroke();
9. int index = 0;
10. int rtot = 0;
11. int gtot = 0;
12. int btot = 0;
14. for (int j = 0; j < myMovie.height; j += increment) {
15. for (int i = 0; i < myMovie.width; i += increment) {
16. int pixelColor = myMovie.pixels[j*myMovie.width + i];
18. int r = (pixelColor >> 16) & 0xff;
19. int g = (pixelColor >> 8) & 0xff;
20. int b = pixelColor & 0xff;
21. rtot = rtot + r;
22. gtot = gtot + g;
23. btot = btot + b;
24. index++;
25. }
26. }
27. }
29. if (myCapture.available()) {
30. myCapture.read();
32. background(0);
33. noStroke();
35. int index = 0;
36. int rtot = 0;
37. int gtot = 0;
38. int btot = 0;
40. for (int j = 0; j < myCapture.height; j += increment) {
41. for (int i = 0; i < myCapture.width; i += increment) {
42. int pixelColor = myCapture.pixels[j*myCapture.width + i];
44. int r = (pixelColor >> 16) & 0xff;
45. int g = (pixelColor >> 8) & 0xff;
46. int b = pixelColor & 0xff;
47. rtot = rtot + r;
48. gtot = gtot + g;
49. btot = btot + b;
50. index++;
51. }
52. }
53. rtot = rtot/index;
54. gtot = gtot/index;
55. btot = btot/index;
56. myColor = color(rtot,gtot,btot);
57. fill(myColor);
58. rect(0,0,w,h);
60. // Faster method of displaying pixels array on screen
61. image(myMovie,0,0,myMovie.width/4,myMovie.height/4);
62. image(myCapture,100,0,myCapture.width/4,myCapture.height/4);
63. }
64. }
Can anybody help me? I am quite in a hurry right now and almost having a nervous breakdown;)
Thanks a lot

Pixel array shuffling

[6 Replies]
- 03-Jan-2011 12:06 PM
- Forum: Programming Questions
Hi,
I am trying to shuffle an array with all the pixels of each frame of a movie that's being played.

Here is a code I found in the forum that apparently does so with an image. Yet I can't make it work with a movie. Plus I don't need it to run on click...
PImage meninas;

void setup() {

   meninas = loadImage("meninas.jpg");

   size(meninas.width,meninas.height);

}

void draw(){

image(meninas,0,0);

}

void mouseClicked(){

  image(meninas,0,0);

  meninas.loadPixels();



for (int t=height*width;t>1;t--){



   int rnd = int(random(t));//check from whats left

   int h = meninas.pixels[rnd];

meninas.pixels[rnd]=meninas.pixels[t-1];//swap

meninas.pixels[t-1]=h;//shuffle



   }



meninas.updatePixels();

}
Any help would be more than appreciated!

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