In this tutorial we are going to see all that is necessary in order to brighten or darken an RGB Buffered Image from a source. This is one of the most basic image processing techniques that you will use when developing applications that involve images.
Basically, to brighten or darken a buffered image one should take the following steps:
- Load an image from a URL using
Toolkit.getDefaultToolkit().getImagemethod - Use an
ImageObserverto monitor the loading of the image. When the image is fully load the user will be notified - Create a buffed image from the source image with a format more close to the custom display environment using
GraphicsEnvironment,GraphicsDeviceandGraphicsConfigurationto perform several image configurations - Draw the image into the buffered image
- Use
RescaleOpto set up the darkening or the brightening factor - And simply paint the buffered image in a new Frame
as you can see in the code snippet that follows:
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This was an example on how to Brighten or Darken an RGB Image in Java.
