Original Image Clarity And Colour; Scanner Type - Oce CS 5050 User Manual

Wide-format colour printers

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CD images in TIFF or EPS format of 28MB or more are preferable for high

quality prints. Avoid compressed image files such as GIF or JPEG, since these

files can lose valuable data after compression. However, if you must use a

compressed file, take into account the following:

Choose the JPEG format in case some quality loss is acceptable. (The

compression factor determines the final image quality.)

Choose LZW if quality loss is not acceptable.

When using LZW, the compression factor will be very low on photo

Note:

images.

Original image clarity and colour

The quality of the original transparency, photograph, or digital file determines

the input as well as output clarity and colour of the image. By using a good,

clear original, you can maintain the image quality throughout the printing

process.

An out-of-focus photograph will result in a fuzzy inkjet print, despite the

after-effects of sharpening corrections.

Variations in film, speed, grain, or developing process can affect the lightness

or darkness of the image for which colour corrections cannot compensate.

It is essential to understand the required (output) print quality of an image, and

to use the appropriate scanner to scan that image into a digital file. Use a

scanner that can achieve enough colour fidelity and edge clarity to meet the

overall print requirement. An image scanned using a low-performance scanner

will lose detail, clarity, and colour.

Introduction

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