milchreis / processing-imageprocessing Goto Github PK

Hello,
I get this error when I want to install it from the Contribution Manager:
Could not download https://github.com/Milchreis/processing-imageprocessing/releases/download/latest/processing-imageprocessing.zip to /tmp/download2801719027574994109processing-imageprocessing.zip : Erreur lors du téléchargement et de l'installation.

Adding marching squares algorithm

Substitute image.get() with pixels[] and load/updatePixels for better performance.

• invert each channel separately

Changing the bright parts of an image.

Image stacking with median and average

The code looks like that:

import milchreis.imageprocessing.*;
import milchreis.imageprocessing.utils.*;

PImage img;

void setup() {
  // Images must be in the "data" directory to load correctly
  img = loadImage("pawelstulejka.jpg");
}

PImage processedImage = Pixelation.apply(img, 2); 

void draw() {
  image(img, 0, 0, width, height);
}

When I run it, I get the following error:

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at processing.core.PApplet.runSketch(PApplet.java:10852)
	at processing.core.PApplet.main(PApplet.java:10620)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
RuntimeException: java.lang.reflect.InvocationTargetException
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at processing.core.PApplet.runSketch(PApplet.java:10846)
	... 1 more
Caused by: java.lang.NullPointerException
	at milchreis.imageprocessing.Pixelation.apply(Unknown Source)
	at photoEditor2.<init>(photoEditor2.java:30)
	... 6 more

Can someone please help me?

https://math.stackexchange.com/a/906280

Wikipedia

How to implementation in android using Gradle or maven?
When unavailable, can you guide how to import jar file maybe.?

Hi, I just installed this library into Processing 4.0.1, the library version reported in Contribution Manager is 1.7.0

As soon as I installed the library I got the following message in the console output:

The version number for “Image processing algorithms” is not a number. Please contact the author to fix it according to the guidelines.

So, here I am contacting the author! 🙂

Hello!

Thanks for the wonderful and well-made Processing library!
It's very useful for static images and perhaps will be enough for most use cases.

I work with running Processing on Raspberry Pi and was wondering if the same functions could be implemented by using video card accelerated language such as GLSL. The main advantage of using GLSL filters would be that all of these effects could be ran at 50-60 fps on almost any hardware that has a GPU.

Let me know if you would be interested in hearing more or if you want to have a discussion about that. Thanks!

• vertical
• horizontal

Changing the brightness in the dark parts of an image.

Can I load PImage by base64 and save PImage into base64?

• Median algorithm
• FFT algorithm

Saturation.apply(PImage image, float shift); // -1.0 <= shift <= 1.0
The ColorShift-Implementation could used therefor.

• Strokes are in an fixed angle (f.e. -45° oer 45°)
• Line length depending on the color intensity
• Multiply with original image for some comic effect

Can I convert PImage into bitmap or Bitmap into PImage?

Map an image to a use given color palette

Adding the sabattier effect, mentioned in processing discourse:
https://discourse.processing.org/t/sabattier-effect-in-processing/21553/7

Adding a haftone algorithm

• Lifting blacks
• under saturate
• increase contrast

While trying to use Flip , the new image contained a black border on one or both sides.

I found the problem in this routine in Flip.java:

int newx = horizonal ? image.width - x : x;
int newy = vertical ? image.height - y : y;

When I changed the code to this:

int newx = horizonal ? (image.width - x) - 1 : x;
int newy = vertical ?( image.height - y ) - 1: y;

the problem was eliminated.

If you look closely at your example you can see the error.

Josh Prokop

https://discourse.processing.org/t/image-to-sine-waves/25938/2

https://www.geeksforgeeks.org/image-processing-java-set-14-comparison-two-images/

thanks for this library, its cool.

I ran into something - if I set pixelDensity(displayDensity()); in my sketch to work in HiDPI , seems that the imageprocessing library might not be compatible, it throws a lot of exceptions with TiltShift , Threshold, etc.

Do I need to set something in the constructor?

I failed to find the tool, can you give the link?

Transform a selected color area by the hue value in a brighter or darker tone.

• gray
• in color

Made from lines algorithm:
https://github.com/Milchreis/madeFromLines

• Pixelize an image with custom pixel size
• Apply the effect on a sub area of an image

Contribution Manager is still pulling the 1.5.1 release because its sources.conf points to the attachment at "latest":

https://github.com/Milchreis/processing-imageprocessing/releases/download/latest/processing-imageprocessing.txt

Right now, 1.5.1 is the "latest" release created through the GitHub releases tab -- 1.6.0 is tag-only, and so it is not on the "latest" url and doesn't have the txt attachment url.

Creating a 1.6.0 release on GitHub with the proper .txt and .zip attachments will make the new release available through for Contributions Manager.

• Quantization with custom shades
• Calculate error image

Converting an image to the hue values for better color tracking possibilities