Package com.jhlabs.image

Class ImageUtils

  • public abstract class ImageUtils
extends java.lang.Object

    • Constructor Summary

      Constructors 
      Constructor Description
      ImageUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.awt.image.BufferedImage cloneImage​(java.awt.image.BufferedImage image)  
      static void composeThroughMask​(java.awt.image.Raster src, java.awt.image.WritableRaster dst, java.awt.image.Raster sel)
      Compose src onto dst using the alpha of sel to interpolate between the two.
      static java.awt.image.BufferedImage convertImageToARGB​(java.awt.Image image)
      Convert an Image into a TYPE_INT_ARGB BufferedImage.
      static java.awt.image.BufferedImage createImage​(java.awt.image.ImageProducer producer)  
      static int[] getRGB​(java.awt.image.BufferedImage image, int x, int y, int width, int height, int[] pixels)
      A convenience method for getting ARGB pixels from an image.
      static java.awt.Rectangle getSelectedBounds​(java.awt.image.BufferedImage p)  
      static java.awt.image.BufferedImage getSubimage​(java.awt.image.BufferedImage image, int x, int y, int w, int h)  
      static void paintCheckedBackground​(java.awt.Component c, java.awt.Graphics g, int x, int y, int width, int height)  
      static void setRGB​(java.awt.image.BufferedImage image, int x, int y, int width, int height, int[] pixels)
      A convenience method for setting ARGB pixels in an image.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • backgroundImage

        public static java.awt.image.BufferedImage backgroundImage

    • Constructor Detail

      • ImageUtils

        public ImageUtils()

    • Method Detail

      • createImage

        public static java.awt.image.BufferedImage createImage​(java.awt.image.ImageProducer producer)

      • convertImageToARGB

        public static java.awt.image.BufferedImage convertImageToARGB​(java.awt.Image image)
        Convert an Image into a TYPE_INT_ARGB BufferedImage. If the image is already of this type, the original image is returned unchanged.

      • getSubimage

        public static java.awt.image.BufferedImage getSubimage​(java.awt.image.BufferedImage image,
                                                       int x,
                                                       int y,
                                                       int w,
                                                       int h)

      • cloneImage

        public static java.awt.image.BufferedImage cloneImage​(java.awt.image.BufferedImage image)

      • paintCheckedBackground

        public static void paintCheckedBackground​(java.awt.Component c,
                                          java.awt.Graphics g,
                                          int x,
                                          int y,
                                          int width,
                                          int height)

      • getSelectedBounds

        public static java.awt.Rectangle getSelectedBounds​(java.awt.image.BufferedImage p)

      • composeThroughMask

        public static void composeThroughMask​(java.awt.image.Raster src,
                                      java.awt.image.WritableRaster dst,
                                      java.awt.image.Raster sel)
        Compose src onto dst using the alpha of sel to interpolate between the two. I can't think of a way to do this using AlphaComposite.

      • getRGB

        public static int[] getRGB​(java.awt.image.BufferedImage image,
                           int x,
                           int y,
                           int width,
                           int height,
                           int[] pixels)
        A convenience method for getting ARGB pixels from an image. This tries to avoid the performance penalty of BufferedImage.getRGB unmanaging the image.

      • setRGB

        public static void setRGB​(java.awt.image.BufferedImage image,
                          int x,
                          int y,
                          int width,
                          int height,
                          int[] pixels)
        A convenience method for setting ARGB pixels in an image. This tries to avoid the performance penalty of BufferedImage.setRGB unmanaging the image.