Processing Forum

Resize image or image transformation like in photoshop

[14 Replies]
- 25-Oct-2012 02:30 PM
- Forum: Programming Questions
Hi guys,

I'm working at something, that I need for work. I'm was never working with the textures before, so I need a hand. I'm trying to map an image (whichever) onto another image. Like a layers in Photoshop. But if you do this in PS, it works with straight lines like a charm.
Example PS: http://www.qcomp.sk/imgcache/116/big/mNX.V7PEC.012_b.jpg
Example Processing: http://www.pcmaster.sk/photo_test.jpg

Code:
1. ```
size(1200, 1000, P3D); textureMode(NORMAL);
PImage under = loadImage("http://www.bilgisayar-destek.com/wp-content/uploads/2012/07/TravelMate-B113-2.jpg");
under.resize(width, height);
PImage img = loadImage("http://images.pcworld.com/images/article/2012/03/windows-8-metro-11329918.jpg");
noStroke();
image(under,0,0);
beginShape(); texture(img);
vertex(498, 62, 0, 0);
vertex(1111, 168, 1, 0);
vertex(1015, 595, 1, 1);
vertex(413, 443, 0, 1);
endShape();
```
My code is actually lot more complex, but this will do. I'll be very glad, if someone can help me with this.
Thanks

How to point the javacvPro to the right folder?

[5 Replies]
- 14-Oct-2012 11:57 AM
- Forum: Contributed Library Questions
So I've got the javacvPro work with the Processing 2.0a8, well sort of.
It totally didn't work with the 1.5, so I tried the new one, and it actually begins the program, but then stops at the detect().

It gives me this error:

Charge le fichier de description d'objet : haarcascade_frontalface_alt.xml
OpenCV Error: Null pointer (Invalid classifier cascade) in unknown function, file C:\slave\WinInstallerMegaPack\src\opencv\modules\objdetect\src\haar.cpp, line 1041
Exception in thread "Animation Thread" java.lang.RuntimeException: C:\slave\WinInstallerMegaPack\src\opencv\modules\objdetect\src\haar.cpp:1041: error: (-27) Invalid classifier cascade

I have no ... clue why is he trying to seek for that haar.cpp file in such weird location. Is there a fix to tell him that the file is else where? C:\opencv\...

Thanks

Alpha test of my processing android app

[0 Replies]
- 16-Jan-2012 11:31 AM
- Forum: Android Processing
Hello,

I would like someone to test out my app (in early stage). But I really want to be sure everything works fine on the different phones (not just in emulator). Made in Processing 2.0a1.

This demo is about internet and soft keyboard... So after you install the app, start it, press the "Find"... this should give you textbox + soft keyboard. Enter some query (car, tree, wolverin movie, apple, processing, whatever...) and press OK. App should now begin "Loading" the image (just thumbnail!) and show it after fully loaded.
(You can then load another image.)
The other thing is saving... with loaded image press SaveToSD, this should save loaded thumbnail to sdcard/Images.

It's just a quick one, I made through out last night, to test out some stuff.

Url: http://apps.cooptri.be/droid/txt2img.apk

*Is keyboard input working?

Why does loadStrings gives me an error only the first time in Android?

[1 Reply]
- 07-Nov-2011 12:51 AM
- Forum: Android Processing
Let say I have a button, I click it and it starts a new thread("loadScore");
In loadScore is only the loadStrings("webadress");
So I run it at my samsung galaxy spica, first time I hit it, it takes a while and then throws an error, that the file is missing... OK... I hit it again... and voila it's working.

What's up with that?

Wanna test out my new Game for Android? :) SpaceFruits

[8 Replies]
- 23-Oct-2011 05:23 PM
- Forum: Android Processing
I redid my old game, that I was doing with Mobile Proccessing, I used some of the old code, but some pretty new stuff for Android. I made tilting control over the space ship instead of just touch buttons.

This is the video of the older version for Java ME enabled phones. I will make a new video, when the game will be ready for full release.

http://www.youtube.com/watch?v=JSQIH12laW0

Point of the game is to get over the asteroids and collect as much SpaceFruits :) It's pretty simple but very engaging.
I should work on 480*320 screens as well as 800*480 ... or bigger. I've tested it on my Samsung Galaxy i5700 Spica, and it works nicely. If there is someone with 800*480 screen phone I would really like him/her to test it out. :) Thanks
So tilt to go left or right, touch the screen to shoot "cherries" - they are bullets and life. So be carefull with them.

Download: http://apps.cooptri.be/droid/SpaceFruitsTest.apk

(In this version you can see FPS in the left upper corner. It should be around 25.)

(I'm waiting for it to be tested for pre-release bugs before I put it on Android Market.)

How to export signed package from processing? (2.0a1)

[1 Reply]
- 23-Oct-2011 09:53 AM
- Forum: Android Processing
Hello, I'm trying to export apk's from within Processing 2.0a1 ... but it gives me the library error:
No library found for android.media
How to cope with it?

I tried to do it by my self with ant, zipalign, jarsigner and keytool, but the apk that I've got at the end, couldn't be installed. (It says "Installing" and then "App was not installed" or sth like that.) Please help.

How to keep backlight ON, on android?

[7 Replies]
- 20-Oct-2011 07:43 PM
- Forum: Android Processing
Hello, I'm developing a game, that is controled by tilting the screen, after some time of playing, the screen goes black. (Or whatever is set in options.) Is it possible to adjust the backlight by some code so that is never goes dark? :)

Dividing negative number

[2 Replies]
- 13-Oct-2011 11:08 AM
- Forum: Programming Questions
How's that println(-5/12); doesn't work? It should give me -0.42, but instead it gives me just 0.
Is not possible to divide the negative number in Processing?

Pixel manipulation too slow

[21 Replies]
- 17-Sep-2011 06:39 PM
- Forum: Programming Questions
I'm using this code with P2D (java2D) in Processing 2.0a1... the FPS always drops to about 20 or less. I have preset 30 fps.
1. loadPixels();
2. pg.loadPixels();
4. for(int x = 0; x < width; x++){
5. for(int y = 0; y < height; y++){
6. if (pg.pixels[y*pg.width+x] != color(255)){
7. pixels[y*width+x] = lerpColor(pg.pixels[y*pg.width+x], pixels[y*width+x], 0.6);
8. }
9. }
10. }
12. updatePixels();
Width is 700 and height is 600. PG is PGraphics with black background and white "shape" drawn in it.
When I del this part of code sketch runs ok at 30 fps.
Is there a way to make it quicker?

Processing 2 alpha 1

[13 Replies]
- 03-Sep-2011 09:53 AM
- Forum: Core Library Questions
OPENGL not working here. Sketch with just import, setup, size and simple draw ... gives this error:

#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x69b5c430, pid=3648, tid=3244
#
# JRE version: 6.0_26-b03
# Java VM: Java HotSpot(TM) Client VM (20.1-b02 mixed mode windows-x86 )
# Problematic frame:
# C [nvoglv32.DLL+0x65c430]
#
# An error report file with more information is saved as:
# C:\Program Files\processing-2.0a1\hs_err_pid3648.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

I've tried to write OPENGL2 ... but that's not working.

Intersection, Overlapping, XOR and else in Processing.JS

[0 Replies]
- 02-Sep-2011 12:58 PM
- Forum: Processing with Other Languages
Hi,

I'm working on a game and I need to do these with shpes...

join bunch of ellipses
xor with rect

So essentially i need to do a holes into a rect. Is that some how possible in processing js? In java processing I was using the Geomerative lib. I know about native JS function for that and that is using globalCompositeOperation (but it doesn't work that properly). Is there an easy way to do that in processingjs? I need to be able to do it on the fly (different x,y, size).

When will be new version of Processing ready? (2.0)

[11 Replies]
- 27-Aug-2011 01:07 AM
- Forum: Core Library Questions
I can see the revision file on the main page, where there are 2 new revisions - the strong ones, lots of my problems (mainly with OpenGL in applets) fixed. I'm working on an online game right now and I'm really looking forward for this update.
So when will it be ready? :)

Is there a way to protect you code?

[12 Replies]
- 12-Aug-2011 08:17 PM
- Forum: Integration and Hardware
So for example when I make an applet. I have it on my site. But everyone (at least little skilled) can find the jar file in the source of the page, download it and then use app like Java decompiler to get to the code. With all my data and stuff.

I'm mostly worry about my loadStrings() where I'll communicate with DB ... so almost anyone can change stuff there!

Is there a way? To somehow protect the code or encode it, or somehow stop users from downloading the file? (Which has to be used as applet.)

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