A

anchored

When a selection is incorporated into the image or canvas area.  When anchored the marquee will disappear from around the selection.

aspect ratio

The ratio of width to height of an image on a television, motion picture, or computer screen.

azimuth

Places an imaginary light source at a specific angle flat to the image. Azimuth works in conjunction with the elevation to position a light source for generating the 3d emboss effect. A value of 0 is from the right, -90 is from the bottom, 90 is from the top, and 180 or -180 is from the left.

B

binary

Computers, programs and files are based on the binary numbering system, which consists of just two unique numbers, 0 and 1. All operations that are possible in the decimal system (addition, subtraction, multiplication, division) are equally possible in the binary system.  

brightness

A visual perception, when an image appears to emit more or less light.

brush width

The width of the lines or dots used to create an oil painting image.  The number is relative to an artistic brush size.

C

color channel value

Contains all of the pixel information for a single color. A grayscale image has one channel, an RGB image has three channels. The RGB values can be found in the Color Picker.(not avaialble in FotoCanvas Lite)

contrast

The difference in brightness between the light and dark areas of an image.

crosshatch

Shading consisting of multiple crossing lines.

D

dockable

The ability to attach a toolbar to different sections of the display.  An undocked toolbar can be resized and moved freely on the screen as a separate window.

E

elevation

Places the light source at a specific angle above the image. Elevation works in conjunction with the Azimuth to position a light source for generating the 3d emboss effect.  A value of 0 places the light source flat to the image, producing more shadows and a dark image. A value of 90 places the light source directly over the image,  producing very few shadows and a light image.

F

feather

A transition zone between the body of a selection and its edge.  The transition zone incorporates a portion of the area outside of the selection and gradually decreases the opacity until the selection fades at the edges.

G

gamma

The range of color values a monitor, scanner, or printer can display. Adjusting this value increases or decreases the intensity of the light spectrum. A gamma corrected image simulates the adjusted display value when it is saved.

H

hue

The value of the color in the visible spectrum. A color with a minimum value is red. As the value increases the color changes, but the lightness and saturation remain the same. One of the three components of the HSL mode.

I

 

J

jaggies

The jagged stair-stepping effect often seen in images whose resolutions are so low that individual pixels are visible.

K

 

L

lightness/luminescence

The brightness value of a color. A color with a maximum lightness is white. A color with a minimum lightness is black. One of the three components of the HSL mode.

lossless rotation

Lossless rotation happens when an unmodified JPEG image is rotated. When the image is rotated it maintains all the pixels in the exact location as the original image. The best JPEG images for rotation are obtained from digital cameras, as they are preformatted to the correct dimensions. The dimensions must be a multiple of 8 or 16.

M

 

N

noise

The effect produced when a variety of pixel colors are used in the same color region. Noise is often produced when an image is resized or converted to another format.

O

opacity

Determines how visible the effect is when it is applied to the image or selection.  An Opacity of 100 is solid, while an opacity of 1 is near invisible.

P

pixel

Short for Picture Element, a pixel is a single point in a graphic image.  A unit of measurement for monitor resolution and image size.  A monitor pixel is composed of a red, green and blue dot to produce a color on screen.

pixelation

An effect which occurs when a bitmapped image is enlarged so that the individual pixels are obvious to the eye.

Q

 

R

raster image

An image composed of individual pixels.  The image quality of a raster image is higher than a vector image, but changing the size of an image adds or subtracts pixels from the image, changing its composition.  Resizing also changes the file size. FotoCanvas only supports raster images.

RGB

The Red, Green, Blue values in a color.  The value represent how much of each color is present, the higher the value the brighter the color. White has an RGB value of 255, 255, 255.  Black has an RGB value of 0, 0, 0.

S

saturation

The purity of a hue or the amount of grey it contains. A color with a maximum saturation is vivid; a hue with a minimum saturation is grey. One of the three components of the HSL mode.

selection

An object or portion of an image highlighted by a marquee. A selection remains separate from an image until it is anchored.  See Using the Drawing Toolbar.(not avaialble in FotoCanvas Lite)

T

 

U

 

V

variance

The number of colors across the brush width that FotoCanvas uses to create the color of each brush stroke.

vector image

An image composed of shapes, not individual pixels.  The shapes in the image are defined by mathematical formulas and the size of the file is independent from those formulae.  Resizing a vector image does not change its quality.  FotoCanvas does not support vector images. Images are converted to a raster image and must be saved as a FotoCanvas supported file type.

vibrance

The color saturation of the Brush width. Increasing vibrance intensifies the color, making it brighter, whereas decreasing the vibrance makes the color dull.

W

weight

Creates the shadow relief, or carved look, of the image.  A Depth value of 1 produces a minimum of shadows and a value of 15 produces the maximum shadow relief.

X

 

Y

 

Z