- JDK anything above 5
- ./setup.sh
I have tried to keep it as simple as possible.
Basically there are two packages, filters and effects.
All the primary and compound effects are placed inside the filters package.
I have divided and grouped basic effects under a few common geners.
For example : two seperate classes Brightness and Contrast are placed in Adjustments.java. Similarly Colors.java has classes like Colorize, Saturation, Vibrance, Vigenetting.
Some of the effects have been taken directly from wikidpedia photoshop effects formuales.
The source image pointer is passed to the contructor of most of the classes.
The function name tuneUp() has been used in most clases like the Adjustments, Colors, and converTo() has been used
in the Desaturate.java.
All these must become trasperent if on looks at the abstract class of each java file.
The package effects is quite simple.
It has an Effects interface, which has the name of the compound effects.
If someone wants to add a new effect, register/mention the effect in the interface and then add a class to the filters package and implement th interface.
The UI bit.
The SwingExample.java just creates an interface for the whole project.
I am looking forward to implement the camera photo film effects like Agfa, Velvia, Provia.
####Working of some filters (more like a note to self):
The Curves.java is used for color curves adjustments.
It takes 5 inputs, the starting and ending points and the two intermediate points. the starting point must have the first element of its array as 0 ,i.e. [0,5] [0,0],[0,62] and so on. Similarly the ending point must have its second element value as 255.
The first element describes the input or 'x' co-ordinates value and the second is the output or 'y' co-ordinates value. These points are taken directly from the curves adjustements done in photoshop or gimp.
P.S.: some manual adjustments to the points may be necessary. If the exact values of the control points are taken, the tuneUpWithControls() method is to be used, and if arbitraru points are taken from the curve then tuneUpWithPoints() is used. The 5 th parameter is the channel parameter [red,green,blue] . 1 denotes on 'selected' 0 denotes 'ignore'. [0,0,1], indiacates the green channel is on.The tuneUp() function is adummy function and returns null.
Using BlendComposite one can achieve the layer effects like Overlay, Add, Substract, Darken,SoftLight etc.
Some compound effects like Amber, SandBlast, Speckel, Crossprocess, Potra etc. are a combination of different
simple filters that have been discussed above.
####Known bugs
There is also a bug existance with the project: once you choose a file with jFileChoser and u need to select another new image, then you can defintely select it with the jFileChooser but, the left side jPanel won't be repainted with the new image. For this we need ti reopen the application.