Canon CS-S 4.3 manual Gamma Correction, Grainy, Height, Histogram Tool, Interpolation, Image Tone

CONTENTS

INDEX

Glossary 96

Gamma Correction

The process of adjusting the midtones to improve an image.

Grainy

An image with rough, uneven texture or tone.

Grayscale

Grayscale refers to a single-channel image made up of 256 (8 bit)/4096 (12 bit) shades of gray, ranging from white to black, that represent all tones in an image.

Height

The Height text box contains the height of the current selection, or, if there is no selection, the maximum vertical output size, based on the currently selected Paper Size.

Histogram Tool

The Histogram displays the distribution of bright and dark pixels for each color channel in the previewed image. The Eyedropper tool on the histogram graph lets you redefine the tonal profile. You can save the settings for Black-point, Mid-point, and White-point settings in a histogram file with the extension *.HST.

Interpolation

The process of adding digital information to an image to increase resolution.

Image Tone

See Tone.

Image Type

The type of image, such as color or grayscale.

JPEG File Format

An image file format developed by the Joint Photographic Experts Group, as a standard for storing color images in less space, with the file format .jpg.

Keep Proportions Button

The Keep Proportions button affects the selection and the Width and Height text boxes. When you click the Keep Proportions button, the image size is maintained in the same proportion whenever you change either the width or the height.

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