Canon CanoScan FS2700F User Manual - Page 126

Glossary, Bit Grayscale Image, Bit Color Image, MM Film, IX240, IX240 Film

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Appendices Glossary 8-Bit Grayscale Image An 8-bit image type utilizing only the brightness data from an image, which is then expressed in black, white and 256 shades of gray. 12-Bit Grayscale Image An 12-bit image type utilizing only the brightness data from an image, which is then expressed in black, white and 4096 shades of gray. 24-Bit 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). 35 MM Film A widely used standard film format. There are several types of film using this format, including color and monochrome, which also come as a negative or positive film. Of these, color negatives are the most commonly used. 36-Bit Color Image Images scanned as red, green and blue light and reproduced in gradients of 4096 tones per color (12-bit). A color image can be expressed in up to 68.7 billion color tones (4096 x 4096 x 4096). On a computer display no difference can be discerned between 24-bit and 36-bit color. IX240 A new film system and format that is compact and easy to use. This system permits the automatic imprinting of such information as the shooting date/ time and exposure setting and incorporates functions that make it easy to display images on computers and TVs. IX240 Film IX240 film is a format that is smaller than 35 mm film. The film is 24 mm wide and images are 17 x 30 mm. IX240 negative films are generally developed and returned to the photographer in the original film cartridge. 126

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Appendices
Glossary
8-Bit Grayscale Image
An 8-bit image type utilizing only the brightness data from an image,
which is then expressed in black, white and 256 shades of gray.
12-Bit Grayscale Image
An 12-bit image type utilizing only the brightness data from an image,
which is then expressed in black, white and 4096 shades of gray.
24-Bit 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).
35 MM Film
A widely used standard film format. There are several types of film using
this format, including color and monochrome, which also come as a
negative or positive film. Of these, color negatives are the most commonly
used.
36-Bit Color Image
Images scanned as red, green and blue light and reproduced in gradients of
4096 tones per color (12-bit). A color image can be expressed in up to 68.7
billion color tones (4096 x 4096 x 4096). On a computer display no
difference can be discerned between 24-bit and 36-bit color.
IX240
A new film system and format that is compact and easy to use. This system
permits the automatic imprinting of such information as the shooting date/
time and exposure setting and incorporates functions that make it easy to
display images on computers and TVs.
IX240 Film
IX240 film is a format that is smaller than 35 mm film. The film is 24 mm
wide and images are 17 x 30 mm. IX240 negative films are generally
developed and returned to the photographer in the original film cartridge.