how to mask out an image pixel in java

[vaneric]

hi
i am looking for a way to zero out a set of pixels in a particular
region in an image.Is there any way to do this using jdk or jai ?

i need to do some geometrical orientations on an image.(like rotating
the image about an axis thru its centre).can someone suggest an
opensrc api to do this?
thanks
eric

 

[Jim]

hi
i am looking for a way to zero out a set of pixels in a particular
region in an image.Is there any way to do this using jdk or jai ?

i need to do some geometrical orientations on an image.(like rotating
the image about an axis thru its centre).can someone suggest an
opensrc api to do this?
thanks
eric

Get the images' graphics and use clearRect or fillPolygon for an
irregular space

Look at Graphics2D and AffineTransform.

and have a look at

http://www.java2s.com/Code/Java/2D-Graphics-GUI/TransformTranslationandRotation.htm

Jim

 

[John B. Matthews]

am looking for a way to zero out a set of pixels in a particular
region in an image. Is there any way to do this using jdk or jai?

[...]

Here's an example of transforming and filling a polygonal region:

<http://sites.google.com/site/drjohnbmatthews/point-in-polygon>