MyGraphicsLab: Adobe Photoshop CS6 ACA Certification ...

PREPARING IMAGES FOR WEB, PRINT, AND VIDEO

MyGraphicsLab: Adobe Photoshop CS6 ACA Certification Preparation for Visual Communication

Copyright © 2013 MyGraphicsLab/Pearson Education

OBJECTIVES

5.1 Demonstrate knowledge of preparing images for web, print, and video.


This presentation covers the following ACA Exam objective:

PREPARING IMAGES FOR OUTPUT

As you’ve learned, how you prepare images for output depends on the output destination. Web output requires small file

sizes while retaining clarity and crispness. Print output requires high

resolution and correct color mode settings for reproduction on commercial presses. Video output requires attention

to file size (especially for web videos), file format, and pixel aspect ratio for reliable playback on intended devices.


WEB OUTPUT

Optimizing images for the web balances two competing criteria: Small file size (and thus fast

downloading) Sharp, clear image quality


WEB OUTPUT: FILE FORMATS

Three file formats are used for web images: JPEG: best for photographic

images and complex illustrations GIF: best for images with large

blocks of solid color, web animations, and background transparency PNG: a kind of hybrid; creates

higher-quality images than GIF, but larger file sizes than JPEG


WEB OUTPUT: SAVE FOR WEB

Photoshop’s web-optimization tools, in the Save for Web dialog box, do most of the work for you, but you still need to adjust settings for each image. Choosing the 2-Up or 4-Up tab

lets you compare different optimization settings with the original image.

See the video Saving Images for the Web for a good introduction to Save for Web.


WEB OUTPUT: OPTIMIZING JPEG IMAGES

To save as JPEG, choose File > Save for Web. In the dialog box: 1. Choose a JPEG preset from the

Preset menu, or choose JPEG from the second menu.

2. Select Optimized to reduce file size. (Lowering Image Size dimensions lowers file size too.)

3. Click the 2-Up tab, and compare original and JPEG versions as you try different quality settings.

4. Select Convert to sRGB (the color profile used by web browsers).

5. Click Save, choose a name and location, and click Save again.


WEB OUTPUT: CREATE A WEB GALLERY (1 OF 5)

In Bridge, you can create a web photo gallery, ready to upload. Step 1: In Bridge, click Output to

switch to the Output workspace. Step 2: Click the Web Gallery

button in the Output panel. Step 3: Navigate to the folder

with your gallery images, and select all. If your gallery images are

scattered in different folders, collect them in one folder.

If you have more images in the folder than you will use in the gallery, select only those you will use.



Step 4: In the Output panel, choose a gallery template and corresponding style.

■ See Adobe Photoshop CS6 Classroom in a Book, Lesson 13, pages 355–358, for an exercise on creating a web gallery.



Step 5: In the Output panel, click Preview in Browser to preview your web gallery. Repeat this step as needed while

you adjust settings to your liking.

■ See the video Building a Web Photo Gallery for a good orientation.



Step 6: In the Output panel, choose your options: Site Info: Gallery Title, Gallery

Caption, and Your Name appear in most templates.

Color Palette: tweak your chosen template style.

Appearance: fine-tune the default settings for your chosen template, including Transition Effect.

Create Gallery: choose a folder for the gallery files, and enter FTP server settings for uploading to your web server.

Preview in Browser, and tweak again until you are satisfied.



Step 7: Click Save to save the gallery files to your computer. Even if you also upload to your

web server, saving a copy on your computer is a good idea.

Step 8 (optional): Click Upload to upload the gallery files to your web server. Choose this only if you normally

upload files to the web server. The FTP settings in the Output

panel must be filled in. Note: The resulting index.html file

and image folder must stay intact and together for the gallery to work.


PRINT OUTPUT: RESAMPLING REFRESHER

Resampling is Photoshop’s process of determining which pixels can be deleted, or added, with the least effect on quality.

Resampling down to a lower image resolution deletes pixels but usually retains quality.

Caution: Resampling up adds pixels and always results in a lower-quality image.

Choose images whose resolution and document size are close to your output needs.

See the video Preparing Press-Quality Images for an overview of image resizing.


PRINT OUTPUT: WORKFLOW

Choose Color Settings most appropriate for your printer.

Edit in RGB mode, not CMYK. Use nondestructive editing

methods whenever possible. After editing, resample down

(never up) to the standard image resolutions for print: 240 ppi for desktop printers 300 ppi for commercial printers

Soft-proof your document, and make final color corrections.

Convert to CMYK mode as the last step. When printing to inkjet and

office printers, leave in RGB.


PRINT OUTPUT: FILE FORMATS

Most commercial printers accept documents in the following formats: DCS (Desktop Color

Separations) EPS (Encapsulated PostScript) PDF (Portable Document

Format): most common PSD (Photoshop Document) TIFF

See Adobe Photoshop CS6 Classroom in a Book, pages 364–371, for an overview of and exercises on preparing images for print.


PRINT OUTPUT: PRINT COMMAND REFRESHER (1 OF 2)

Photoshop’s redesigned Print dialog box gives you more control over color, with a large preview. In the Color Management section, you choose the following settings: Color Handling: determines

whether the printer or Photoshop manages color. With printer selected, all other

options become unavailable. If you have a color profile for

your printer, Adobe recommends choosing Photoshop Manages Colors.

Printer Profile: Choose the closest match to your printer.


PRINT OUTPUT: PRINT COMMAND REFRESHER (2 OF 2)

Rendering intent: Determined by your Color Settings, the default setting is recommended.

Black Point Compensation


VIDEO OUTPUT

Video file size can quickly balloon to unmanageable sizes. In the New dialog box, choose

a size closest to your final output format.

The format determines file dimensions and resolution.

When it’s time for output, in the Render Video dialog box, choose quality, size, and frame-rate settings that will produce the smallest file size.

During development, save video files in Photoshop format (PSD). Label layers descriptively so

you can manage them easily in the Timeline.


VIDEO OUTPUT: TITLE-SAFE AREAS

If you edit for broadcast or home-use video, be aware that most consumer TV sets cut off the edges of a video.

When you select NTSC, PAL, or HDTV size in the New dialog box, Photoshop creates guides delineating safe editing areas. The outer set of guides is the

action-safe area. The inner set of guides is the

title-safe area. See Adobe Photoshop CS6

Classroom in a Book, pages 268–285, for an exercise on video.


VIDEO OUTPUT: RENDER VIDEO

To create the final video file, render it to compute your edits: File > Export > Render Video.

In the Render Video dialog box, choose Adobe Media Encoder, and then choose a format: DPX (Digital Picture Exchange):

for importing to a professional video editor

H.264 (MPEG-4): the most versatile, with presets for HDTV and optimized web formats

QuickTime (MOV): required for exporting uncompressed video


VIDEO OUTPUT: SPECIALIZED FILE FORMATS

Specialized file formats are available in the Render Video dialog box.

Choose Photoshop Image Sequence instead of Adobe Media Encoder, and then choose a format: OpenEXR: for use in motion

picture production Cineon: used in the Kodak

Cineon Digital Film System Targa: designed for systems

using the Truevision video board


MyGraphicsLab: Adobe Photoshop CS6 ACA Certification ...

Documents

Transcript of MyGraphicsLab: Adobe Photoshop CS6 ACA Certification ...