Addition Operator
Original Images ( Operands )
| Image 1 | Image 2 |
|---|---|
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Resulting Images = Image_1 + Image_2
It’s pretty evident that after application of addition operator on two equal sized images, resulting pixel intensity values may be out of range ( > 255 ), which can’t be stored in a 24-bit RGB image. For putting pixel intensities in [0, 255] range, we can consider either of following two ways
- All pixel intensities < 0, becomes 0 and > 255, becomes 255. [ Clipping ]
- We’ll simply apply modulus ( % ) 256, to put all pixel intensities back to range. [ Scaling ]
| Clipped | Scaled |
|---|---|
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