Legibility of Condensed Perceptually-Tuned Grayscale Fonts

نویسندگان

  • Robert A. Morris
  • Roger D. Hersch
  • A. Coimbra
چکیده

We analyze the quality of condensed text on LCD displays, generated with unhinted and hinted bilevel characters, with traditional anti-aliased and with perceptually-tuned grayscale characters. Hinted bi-level characters and perceptually-tuned grayscale characters improve the quality of displayed small size characters (8pt, 6pt) up to a line condensation factor of 80%. At higher condensation factors, the text becomes partly illegible. In such situations, traditional anti-aliased grayscale character seems to be the most robust variant. We explore the utility of perceptually-tuned grayscale fonts for improving the legibility of condensed text. A small advantage was found for text searching, compared to bilevel fonts. This advantage is consistent with human vision models applied to reading.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Legibility of perceptually-tuned grayscale fonts

Perceptually-tuned grayscale fonts are generated from character outline descriptions by applying to them a set of modifications specifically conceived for strengthening thin character parts, obtaining well-contrasted bars and preserving important relationships between character shape parts. The present study aims at comparing the legibility of perceptually-tuned grayscale and bilevel display fo...

متن کامل

ClearType sub-pixel text rendering: Preference, legibility and reading performance

ClearType is an onscreen text rendering technology in which the red, green, and blue sub-pixels are separately addressed to increase text legibility. However, it results in colored borders on characters that can be bothersome. This paper describes five experiments measuring subject preference, text legibility, reading performance, and discomfort symptoms for five implementation levels of ClearT...

متن کامل

Automatic Synthesis of Contrast Controlled Grayscale Characters with Component-Based Parametrisable Fonts

A few years ago, a perceptually-tuned grayscale character generation technique was developed in order to automatically syn~ thesize grayscale characters looking like manually-tuned pixmap characters. Weight and contrast controlled grayscale characters are obtained by grid-fitting the scaled character contours. However, this technique requires that hinting information be added to the outline fon...

متن کامل

Perceptually-Tuned Grayscale Characters Based on Parametrisable Component Fonts

Our component-based parametrisable font system is a newly developed font description and reproduction technology. It incorporates for each basic character shape a software method responsible for the synthesis of an instance of that character. A given font is synthesized by providing appropriate font parameters to these character synthesis methods. Numerous concrete fonts can be derived by simpl...

متن کامل

Perceived Legibility of Onscreen English Fonts: An Exploration into Readers and Font Types

Onscreen English fonts have a critical role in communicating information. Although there has been research into the legibility of these fonts, no study has yet explored font legibility in the context of ethnicity across font types. The present study attempts to fill this void. 402 Thai and non-Thai participants completed questionnaires that displayed texts using serif, sans serif and script fon...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998