i Had load my image Buffered image now need to brighten it using Slider or scroll-bar so could any one suggest me how to do it? If it can done using any ImageJ library then suggest me that also.
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here: http://docs.oracle.com/javase/tutorial/2d/images/drawimage.html this might get you started. – Harry Joy Apr 03 '12 at 14:40
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A similiar question was answered here. You will need to adjust values based on readings from your slider

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Osama Javed
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http://stackoverflow.com/questions/3433275/adjust-brightness-and-contrast-of-bufferedimage-in-java – Osama Javed Apr 03 '12 at 14:43