Step 5: Adjusting the Data
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Digital Photo Print Guide
Notes for Adjusting Data
Data viewed as a histogram
Viewing the data in simplified form (histogram)
Image processing software like Photoshop has a function for showing the distribution of brightness in the
image.
This histogram allows you to view all the colors and each RGB color as peaks, and to check whether the
colors and brightness are within the reproducible range.
The parts at the ends of the scale (255 and 0) indicate the parts where tonality is lost. Since this part lacks
tonality, it is filled with flat color, and if you actually print it, the result will lack any expression.
If it is up against the right side, it indicates that many parts will show whiteout.
If it is up against the left side, it indicates blackout.
An example of a poor histogram for RGB
