Image SXM Help

NIH Image

Averages or integrates two or more video frames to reduce time-varying random noise. Averaging will be done only for the current rectangular selection, or for the entire image if there is no selection.

Number of Frames is the number of frames to be averaged or integrated. Note that there is a possibility of overflow if this value is set to more than 128 since frames are summed in a signed integer buffer with a maximum pixel value of 32,767.

Number of Frames
Integrate
Integrate On-chip
Video Rate
Calibrate
Fix Scale
Min/Max

You can bypass the Average Frames dialog box by holding down the option key. The Average Frames macro (in the "Video" macro file) also bypasses the dialog box, and, in addition, allows you to do averaging or integration by simply pressing the "A" key.