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Canvas 12 User Guide - ACDSee

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Chapter 9: Seismic Data<br />

If the majority of the data is concentrated within a narrow range of values as compared to the full<br />

data range between maximum and minimum data values, the image created will appear blank since<br />

the data will be assigned only a few colors from the available spectrum. If this occurs, you can obtain<br />

the histogram of data contained in the traces and then set a window of values within which image<br />

colors will be scaled. All values falling outside this window will be assigned a minimum or maximum<br />

color.<br />

Image created with colors scaled to full data range<br />

To address this problem, you should obtain the histogram of the data by selecting traces and clicking<br />

the Update button. Then, you set a window of values by entering a window of values and then<br />

clicking Set. You would then select Histogram’s amplitude window from the Color scales to menu.<br />

Click Apply.<br />

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