Minolta DIMAGE SCAN DUAL II AF-2820U - Manual (Page 66)

66
TONE CURVES/HISTOGRAM
Click on in the Image Correction tab.
When the Tone curves/Histogram Correction button is clicked, the Tone Curves and Histogram
dialog box is displayed.
The Tone Curves part allows you to change the tone curves and directly correct the output
value.
The Histogram part allows you to specify the input and output area from the information
included in a film and correct images. Also, this dialog box displays the histogram of the image
area inside the cropping frame in each RGB color. The level is indicated in 256 color steps
(0 to 255) from left to right side.
The tone curves and histogram are linked to each other so that when the tone curve is
corrected, the histogram is automatically corrected.
The Tone Curves and Histogram Dialog Box – Names of Parts
Channel Selection list box
Tone curves
Input Gamma slider
Histogram
Input Shadow slider
Output Shadow slider
Histogram RGB display
button
Tone curves/Smooth
Curve button
Freehand curve button
Black point button
Gray point button
White point button
Apply button
Input Highlight slider
Input Shadow text box
Input Gamma text box
Input Highlight text box
Output Shadow text box
Output Highlight text box
Output Highlight slider
Gray scale