User Guide

Chapter 9: Seismic Data
If the majority of the data is concentrated within a narrow range of values as compared to the full
data range between maximum and minimum data values, the image created will appear blank since
the data will be assigned only a few colors from the available spectrum. If this occurs, you can obtain
the histogram of data contained in the traces and then set a window of values within which image
colors will be scaled. All values falling outside this window will be assigned a minimum or maximum
color.
Image created with colors scaled to full data range
To address this problem, you should obtain the histogram of the data by selecting traces and clicking
the Update button. Then, you set a window of values by entering a window of values and then
clicking Set. You would then select Histogram’s amplitude window from the Color scales to menu.
Click Apply.
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