iBall ClickScan A305, User Manual

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Remove Shadow 2
Remove the shadow of image.
Threshold
The threshold effect converts grayscale or color images to high-contrast,
black-and-white images. Specify a certain level as a threshold, all pixels lighter
than the threshold convert to white and all pixels darker convert to black.
After clicking it, the system will count current distribution and draw out a referred
threshold, user can enter this value or any you want.
Adaptive Threshold
It refers to the gray scale threshold of a certain point in the image which is 0 or 255,
that is to say, the whole image shows black-white state.256 levels of gray scale can
still attain threshold image which reflect the overall and partial characteristics
through appropriate threshold options.
After clicking the item, the system will calculate current histogram distribution
state, and then implement threshold processing of current image.
Colorize
Colorize the image. For three ways: hue, saturation, mixed degrees adjustment,
RGB color quantum adjustment, brightness adjustment. Add color to a grayscale
image which converted to RGB, or add color to an RGB image, for example, to
make it look like a duotone image by reducing its color values to one hue.
Gamma
It's a way that edits for gamma curve and non-linear hue. Detect the light and dark
part, and increase the proportion of them so that contrast degrees enhance.
Pseudo Colors
You can add colors to gray scale diagram. Human beings are not sensitive to minor
changes, but extremely sensitive to colorized ones. Pseudo colors take advantage
of the characteristic to enhance the resolution of that.
Lighten
Increase the value of a pixel in the image.
Darken
Reduce the value of a pixel in the image.
More Contrast
Increase the contrast of the image.
Less Contrast
Reduce the contrast of the image.