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Java™
by example!
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How do I brighten an image?
To brighten an image, you can use the class LookupOp. This class works with one or more tables that will be applied to the color values of the pixels. To brighten an RGB image, the RGB values have to be increased (higher values means brighter). The lookup table reflects these changes.
The following example shows the original image, an image that has been brightened by adding 30 to every pixel color (every R,G and B, and all values that are higher than 255 are reset to 255) and an image where brightening is based on the rule that says that midrange colors are adjusted more than dark or bright colors.
Main.java:
Image used:
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Further Information
Author of answer: Joris Van den Bogaert
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