<<

1/11/2016

Typography Chapter Objectives and Images Explain webpage issues 5 Discuss effective use of webpage images Describe image file formats Discuss how to prepare web-ready images Web , 5th Edition

Chapter 5: Typography and Images 2

Webpage Typography Issues Webpage Typography Issues

 The appearance and arrangement of characters A is a group of alphabetic characters, applied to text numbers, and symbols with the same design, – Typeface such as the slant and thickness – Type style – Type size – Font

Chapter 5: Typography and Images 3 Chapter 5: Typography and Images 4

Webpage Typography Issues Webpage Typography Issues

Serif fonts have a short line extending from the top or bottom of a character, called a serif Sans serif fonts do not have serifs Web often vary serif and sans serif fonts for heading and body text fonts to create visual contrast

Chapter 5: Typography and Images 5 Chapter 5: Typography and Images 6

1 1/11/2016

Webpage Typography Issues Webpage Typography Issues

A font family, or font stack, includes a default font and backup font types if a browser cannot locate the default font Embedded fonts are included in the code for the webpage and must be downloaded to the user’s device before the webpage text can appear

Chapter 5: Typography and Images 7 Chapter 5: Typography and Images 8

Webpage Typography Issues Webpage Typography Issues

Font size can be expressed as an absolute size or a relative size Absolute font sizes do not change when visitors change their browser font size settings Relative font sizes adjust to the user’s screen and resolution Not all fonts are available on all operating systems Font selection can contribute to a specific mood

Chapter 5: Typography and Images 9 Chapter 5: Typography and Images 10

Webpage Typography Issues Webpage Images

Image Text Images can: – Some image-editing software and apps contain – Add value to your features that allow you to create images from text – Match or complement your website’s or add text to an image – Accurately represent the content to which they link, if used for image mapping – Support the website’s message – Contribute to the overall mood you want to set

Chapter 5: Typography and Images 11 Chapter 5: Typography and Images 12

2 1/11/2016

Screen Capture and Digital Cameras Software and Apps Digital cameras record images electronically Screen capture software creates an image of – Many smartphones have built-in digital cameras computer screen contents that can take quality photos – Screen shots Web designers and graphic artists use illustration software and apps to create images by shapes, lines, and curves

Chapter 5: Typography and Images 13 Chapter 5: Typography and Images 14

Screen Capture and Illustration Image File Formats Software and Apps Image files are grouped into two categories: – Raster – Vector Webpages mostly display three formats – Interchange Format (GIF) – JPEG File Interchange Format (JFIF) – Portable Network Graphics (PNG)

Chapter 5: Typography and Images 15 Chapter 5: Typography and Images 16

Graphics Interchange Format Image File Formats (GIF) Original graphics format used on the web Display up to 256 colors Interlaced GIF displays image in a sequence of passes – Each pass displays the image at a higher resolution You can turn on or off a single color in a transparent GIF

Chapter 5: Typography and Images 17 Chapter 5: Typography and Images 18

3 1/11/2016

Graphics Interchange Format JPEG File Interchange Format (GIF) (JFIF) Commonly referred to as the JPEG image format Best suited for digital photographs on the web that are more than 256 colors JPEG images are a good choice for photographs and other high-quality digital images used on webpages

Chapter 5: Typography and Images 19 Chapter 5: Typography and Images 20

Portable Network Graphics Web-Ready Images (PNG) Format Free open source image format to replace the Crop images to remove unwanted subject GIF format matter – Greater range of colors than the GIF format – Superior transparency capabilities

Chapter 5: Typography and Images 21 Chapter 5: Typography and Images 22

Web-Ready Images Chapter Summary

Optimizing Images for Size and Quality Explain webpage typography issues – Lossy vs. Lossless compression Discuss effective use of webpage images Compression artifacting is when higher Describe image file formats compression values lead to a greater loss of Discuss how to prepare web-ready images image data

Chapter 5: Typography and Images 23 Chapter 5: Typography and Images 24

4 1/11/2016

Typography 5 and Images

Web Design, 5th Edition

5