Instruction manual

IMAGE CORRECTION – HISTOGRAM
Dimâge Scan Speed 37
When RGB synchro is selected, moving the levels sliders remaps the pixel values without
changing the colour balance. Correcting the highlight and shadow values with the histogram
sliders, may produce better results on images without neutral highlights or shadows.
Brightness and Contrast Changes - RGB Synchro
1. Click on
.
• Changes applied to one colour channel will be reflected in the other two.
2. Click on and move the input level highlight and
shadow sliders to the edges of the flat line area.
• Changes are automatically applied to the preview image.
• Values to the right of the highlight slider will be scanned as pure white
(level 255). Values to the left of the shadow slider will be scanned as
pure black (level 0).
3. Click on and slide the output level sliders until
the preview image has the desired image
contrast.
• Click on to view a full screen display of the control and
preview windows.
4. Click on and hold to view the output level
histograms.
If the histogram contains large flat line areas…
Input Level Histograms
Input level highlight sliders moved to
the edge of the flat line area.
Output Level Histograms
Pixel values have been spread to
better utilize the brightness range.
Continued on the following page.
The brightness level
for the currently
selected slider is
displayed next to the
histogram.