In this paper we deal with a new Technical Specification providing a method for the objective measurement of print
quality characteristics that contribute to perceived printer resolution, “ISO/IEC TS 29112:2012: Information Technology
– Office equipment – Test charts and Methods for Measuring Monochrome Printer Resolution”. The Technical
Specification aims at electrophotography monochrome printing systems. Since the referred measures should show
system or technology independence inkjet printing systems are included as well in our study. In order to verify if given
objective methods correlate well with human perception, a psychophysical experiment has been conducted, and the
objective methods have been compared against the perceptual data.
INCITS W1.1 is a project chartered to develop an appearance-based image quality standard. This paper summarizes the
work to date of the W1.1 Text and Line Quality ad hoc team, and describes the progress made in developing a Text
Quality test pattern and an analysis procedure based on experience with previous perceptual rating experiments.
The INCITS W1.1 macro-uniformity team works towards the development of a standard for evaluation of perceptual
image quality of color printers. The team specifically addresses the types of defects that fall in the category of macrouniformity,
such as streaks, bands and mottle. This paper provides a brief summary of the status of this work, and
describes recent results regarding the precision of the macro-uniformity quality ruler for assessment of typical printer
defects.
In September 2000, INCITS W1 (the U.S. representative of ISO/IEC JTC1/SC28, the standardization committee for office equipment) was chartered to develop an appearance-based image quality standard.(1),(2) The resulting W1.1 project is based on a proposal(4) that perceived image quality can be described by a small set of broad-based attributes. There are currently five ad hoc teams, each working towards the development of standards for evaluation of perceptual image quality of color printers for one or more of these image quality attributes. This paper summarizes the work in progress of the teams addressing the attributes of Macro-Uniformity, Color Rendition, Text and Line Quality and Micro-Uniformity.
The ISO WD 19751 macro-uniformity team works towards the development of a standard for evaluation of perceptual image quality of color printers. The team specifically addresses the types of defects that fall in the category of macrouniformity, such as streaks, bands and mottle. The first phase of the standard will establish a visual quality ruler for macro-uniformity, using images with simulated macro-uniformity defects. A set of distinct, parameterized defects has been defined, as well as a method of combining the defects into a single image. The quality ruler will be a set of prints with increasing magnitude of the defect pattern. The paper will discuss the creation and printing of the simulated images, as well as initial tests of subjective evaluations using the ruler.
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