<div>
<a href="http://www.java2s.com/Code/Java/2D-Graphics-GUI/ImageProcessingBrightnessandContrast.htm" rel="ugc">http://www.java2s.com/Code/Java/2D-Graphics-GUI/ImageProcessingBrightnessandContrast.htm</a>
</div>


http://www.java2s.com/Code/Java/2D-Graphics-GUI/ImageProcessingBrightnessandContrast.htm [http://www.java2s.com/Code/Java/2D-Graphics-GUI/ImageProcessingBrightnessandContrast.htm]

<div>
But I have to change the contrast of only one color relative to the background, not all the image.<br />
Can you suggest a way to do that?
</div>


But I have to change the contrast of only one color relative to the background, not all the image.
Can you suggest a way to do that?

<div>
you can just change the <a href="http://helpdesk.objects.com.au/java/changing-the-colormodel-of-a-bufferedimage" rel="ugc">color table (ColorModel) of the image</a> to achieve that<br />

</div>


you can just change the color table (ColorModel) of the image [http://helpdesk.objects.com.au/java/changing-the-colormodel-of-a-bufferedimage] to achieve that


<div>
Can you be more specific?<br />
Which is the part of the code that influence the contrast?<br />
Also, do you know how transparency and contrast interact?
</div>


Can you be more specific?
Which is the part of the code that influence the contrast?
Also, do you know how transparency and contrast interact?

<div>
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
</div>


This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.

<div>
<div class="content wysiwyg-content">
I need to change the contrast (and maybe the brightness) of an image in Java. It is a BufferedImage that I create, and it is made of different geometrical items. I have to change the contrast of only some of these items. The items to be changed are all of the same color.<br />
Also, these elements are traslucent, so I am using Transparency.TRANSLUCENT function.<br />
I don't know how contrast and transparency interact...<br />
<br />
Thanks<br />

</div>
</div>


I need to change the contrast (and maybe the brightness) of an image in Java. It is a BufferedImage that I create, and it is made of different geometrical items. I have to change the contrast of only some of these items. The items to be changed are all of the same color.
Also, these elements are traslucent, so I am using Transparency.TRANSLUCENT function.
I don't know how contrast and transparency interact...

Thanks


Change contrast in Java BufferedImage

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.