Combine

This function calculates the linear combination of two images on a pixel basis.

Both Input images are first multiplied by the specified factor and then added together. If a factor is negative, one input image will be subtracted from the other. The brightness of the Output image can then be adjusted by adding an Offset. The combination of two images can be used to reduce noise, for example. This is achieved by acquiring several images of the same scene and subsequently combining them.

Values outside boundaries

The resulting pixel values cannot be outside the value range of the corresponding pixel type, e.g. for an 8 Bit B/W image, the values cannot fall below 0 or exceed 255.

If the resulting value lies outside the value range, it is set to the maximum or minimum value.