Tune2Print Software to Optimise Digital Images Enclosed in PDF Files

CaptureThis white paper explains how Océ Tune2Print works. This is a software tool to enhance the images in a PDF file automatically, without user interaction.

It enables users to deal with the often variable quality of digital images, which is the result of widespread use of digital photography and low-cost desktop scanners. It also eliminates the need for individual image correction and retouching using a software application, which is time-consuming and requires some expertise. This white paper is part of a set of white papers to explain the  Océ technologies and applications.

Enhancing digital images in print files Traditionally, images were optimised by a professional lithographer. Looking at the individual images, the lithographer determined the adjustments that had to be made to the images to give the best possible print results.

 

With the introduction of digital photography and low-cost desktop scanners, digital images can be supplied by anyone. As a result, the images that are enclosed in print files are of varying quality. Sometimes they can be very good, but often they need to be ‘retouched’ to get an acceptable print. This can be done manually, using applications like Adobe Photoshop, but it requires a lot of time and the right expertise to do so.

Océ Tune2Print allows the images in a PDF file to be enhanced automatically, without the need for user interaction.

How does Tune2Print work?
A key aspect of the Océ Tune2print software is the automatic analysis of each image with respect to a number of parameters that relate to print quality. Based on this analysis, the parameters of the enhancement algorithms are set.

This means that the image-enhancement algorithms used by the software are not applied as a batch job, with fixed settings for all images. The process of first estimating a number of imagequality parameters, and then enhancing an image based on this analysis, is comparable to the way professional lithographers work: they fine-tune the enhancement algorithms for each individual image. As a result, the enhancements will rarely have a negative effect on print quality