ORIS PDF Tuner Version 4.4.8 User Manual - image2output - Support

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Gradation Changes and Tone Value Corrections
Additional Options
Original and Modified Image
You can compare the modified image with the original image using the
SHOW BEFORE function in the image’s MENU window. Select this function
to display the original image. Reselect it to display the modified image.
You can also press F4 instead.
Color Probe
The color probe is a window that allows you to compare color changes
at a specific point of an image. This window displays two rows of color
values. The values at the top (BEFORE) show the original image colors,
the values in the second row (AFTER) show the modified colors.
Fig. 25-14
Color Probe
To set the color probe:
1. Select COLOR PROBE in the MENU window.
2. By default, an area of 1 pixel is measured. To change the size of this
area, select COLOR MEAS. BOX in the MENU window and enter the size.
Enter 10 to measure an average value over an area of 10 x 10 pixels,
for example. The maximum size is 32 x 32 pixels.
3. Click on a point of the image containing the color you want to monitor.
The color probe window appears. As you modify the image, the lower
row of CMYK values will reflect the color changes.
Grid
To facilitate the creation of gradation curves you can overlay the COLOR
GRADATION window with a grid. Repeatedly select function SET GRID in
the menu of the COLOR GRADATION window to display the grid, to add
grid lines or to hide the grid.
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