Changing colour mode
You can change the image’s colour mode using the Color menu. These commands do not work with regions. They are always applied to the whole image. The result of the changes will be immediately shown in the preview area.
Halftone: It makes the image look like simulated grayscales using different combinations of
Grayscale: It converts the image into a grayscale mode. All the colour information will be removed from the image, and the image will look
Color Resolution: It changes the colour depth of an image. Colour depth is defined as a number of bits per one pixel of image. The more bits are used to represent one pixel, the more colours you can have in one image. So, when you reduce the colour depth, the number of available colors is reduced too.
Note: You can work with an colour image using Samsung ImageThru (by importing the colour image from an external application), but you cannot scan and print the colour image because your machine is a black and white scanner and printer.
Adjusting image attributes
You can adjust a number of image attributes for an image being edited by using the following submenus from the Color menu.
Brightness: You can make your image look brighter or darker.
Contrast: The contrast value defines how sharp or smooth the transition between areas of different colour will be. The higher the contrast value, the more pronounced are the changes of colour.
Hue: Hue is the wavelength of light reflected from or transmitted through an object. More commonly, hue is identified by the name of colour such as red, orange, or green. Hue is measured as a location on the standard colour wheel and is expressed as a degree between 360o and 0o.
Saturation: Saturation, sometimes called chroma, is the strength or purity of the colour. Saturation represents the amount of gray in proportion to the hue and is measured as a percentage from 0% (gray) to 100% (fully saturated). On the standard colour wheel, saturation increases as one approaches the edge of the wheel; saturation decreases as one approaches the center.
Gamma Correct: You can adjust the intensity of colors in an image by changing the gamma constant that is used to map the intensity values.
Invert: The inverted image is similar to photo film negative; all light areas become dark, dark areas become light, white becomes black, and black becomes white.
Stretch Intensity: It automatically adjusts the intensity values based on the
3.16 Working with ImageThru