Canon FS 3.6 manual Black and White, Brightness, Color Balance, Color Image, ColorGear, Contrast

Appendices

Black and White

An image type utilizing only the highlight and shadow data from an image, which is expressed in only two tones using the size of dot groupings and density of either tone to express the image details. There are many different standard patterns (dither patterns) that can be used to express an image.

Brightness

The brightness of data scanned from a film. Raising the brightness value makes an image brighter, lowering it makes it darker.

Color Balance

The balance of color tones in an image. The color balance of an image is adjusted by changing the relative ratios of red, green and blue or cyan, yellow, magenta and black.

Color Image

Images scanned as red, green and blue light and reproduced in gradients of 256 tones per color (8-bit). A color image can be expressed in up to 16.7 million color tones (256 x 256 x 256).

ColorGear

A proprietary Canon color management system that produces consistent coloring between input and output devices, such as a scanner and computer display.

Contrast

The difference in highlights and shadows when an image is scanned. Raising the contrast produces a sharply defined image, lowering it produces a softer, less focused image.

Dither Pattern

The arrangement of dots used to express data converted from the halftone values of the original image into only two colors, black and white. Dither patterns using groups of 8 x 8 dots (64) can be expressed as squares, circles, triangles or other shapes, expressing the details if the image by varying the size and density of groupings.

Dithering

One method of using only black and white to express halftones. After each dot of the image has been converted to black or white using the halftone threshold, the difference in brightness between the original and post- conversion image is averaged and applied to the entire image, expressing it in shadows and highlights.

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