Polaroid BLL Generator - Manual (Page 31)

32 Principle of Operation
When discussing film recorder resolution, the terms 2000-line slide, 4000-line slide and 8000-line slide
are commonly used. The number of lines refers to the number of dots across the image. Examples:
2000-Line Slide 4000-Line Slide 8000-Line Slide


NOTE: High end Lasergraphics film recorders can image up to 16384x13448 dots. This is
called 16000-line resolution. Some camera backs have a different aspect ratio that enables the
film recorder to output at higher vertical resolution like 4096x3362. This is still called 4000-line
resolution.
Color Fidelity
Color fidelity refers to the range of colors that can be reproduced in an image.
The range of colors that can be represented is defined by the number of bits per pixel used to store an
image. The more bits per pixel, the greater the range of colors.
Windows BLL Generator supports 24-bits per pixel, 8 for each of red, green, and blue. This results in
256 shades of each primary color, which can combine to form 16.7 million colors. Each pixel in an
image can be a different color.