Page 188 - DCAP109_GRAPHIC_TOOLS

Unit 8: Tools Working with CorelDraw

Notes
Figure 8.13: Image after Desaturation

Source: http://www.insidegraphics.com/digital_art/photoshop_digital_desaturate.asp
Level Equalization: It can adjust shadow, midtone, and highlighted areas by redistributing
shades from darkest to lightest, preserving shadow and highlight detail.
Replace Colours: Lets you replace one bitmap color with another color. A color mask is created
to define the color to be replaced. Depending on the range you set, you can replace one color or
shift an entire bitmap from one color range to another. You can set the hue, saturation, and
lightness for the new color.

Selective Colour: Selective Colour dialog box allows the users to modify colour by increasing
and decreasing the percentage of the magenta, yellow, and black pixels that make up each colour
in the spectrum.
Tone Curve: It lets you perform color corrections precisely, by controlling individual pixel
values. By changing pixel brightness values, you can make changes to shadows, midtones, and
highlights.
Sample/Target Balance: It lets you adjust color values in a bitmap with sample colors taken from
the image. You can choose sample colors from the dark, midtone, and light ranges of an image
and apply target colors to each of the sample colors.

3D Filters

Cylinder: It converts an image to a cylindrical shape. The percentage slider takes positive and
negative values that lets users set the amount to which the image needs to be mapped.
Sphere: It wraps an image around the inside or outside of a sphere. Positive values in the
percentage slider expands the central pixels towards the image’s edge resulting in a spherical
shape and negative values compress pixels towards the centre of the image to conform the
image to a concave sphere.

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