DiMAGE Scan Multi PRO
67
TONE CURVES AND HISTOGRAM
SETTING THE WHITE, BLACK OR GREY POINTS
White point (highlight point) indicates the section you want to
lighten, Black point (shadow point) the section you want to
darken, and Grey the section you want to have as neutral tone.
An image with no highlight or shadow will not be clear and
appear dull. You can correct the image by adjusting the White
point/Black point/Grey point buttons to enhance the highlight or
shadow point so that the image will have good contrast
and not be all white or black. Also if the image has too
much contrast, you can correct it by weakening the
highlight or shadow point.
• Changes are automatically applied to the prescan
image.
Setting the White Point
1.
Double-click on
.
• The Point Value Setting dialog box is displayed.
• The initial value of the White point is 255 in each R, G
and B.
2.
Input the desired white point value.
3.
Click on
.
• The cursor changes to the white dropper shape.
4.
Click the desired highlight point of the image.
• The image is corrected so that the point you clicked is
the highlight point. The colour of the highlight point is the
white dropper value you input in step 2.
• The change will be reflected in the prescan image.
• You need to identify the true highlight points of the image, not
pure white points that have no detail, such as reflection
points. White with no detail is called specular white and ink
will not be used in these parts when printing.
• Normally, if you set each R, G, B colour to 250 to 253, white
will have less brightness. You may lose the gleam of a white
cup.
Point Value Setting dialog box
• When the film type is set to the
colour mode.
• When the film type is set to the
monochrome mode.
Setting the Black point
1.
Double-click on
.
• The Point Value Setting dialog box is displayed.
• The initial value of the Black point is 0 in each R, G
and B.
2.
Input the desired black point value.
Summary of Contents for DiMAGE DiMAGE Scan Multi PRO
Page 1: ...INSTRUCTION MANUAL E 9224 2887 11 H A108...
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Page 123: ...DiMAGE Scan Multi PRO 123 SCAN JOB FILE LIST MULTI FORMAT 35 mm...
