Photoshop Elements 3 Solutions: The Art of Digital Photography- P10: This book rocks! It is not just a revised version; this is a brand new edition. So much has changed in Adobe Photoshop Elements 3 that it is practically a whole new program, and Mikkel Aaland has completed quite an amazing undertaking with Photoshop Elements 3 Solutions. | 254 CHAPTER 10 PREPARING IMAGES AND GRAPHICS FOR THE SCREEN Before I get into how to fix this problem it s helpful to explain a basic fact about the GIF transparency. Variable opacity is not an option in the GIF format. It supports only one transparent color which effectively means a 1-bit mask. Areas are either transparent or not. To get around the 1-bit mask limitation you can have Photoshop Elements create a pseudo multi-bit mask. If you know the color of your web page background all you need to do is choose that color from the Matte pop-up menu in the Save for Web dialog box. Photoshop Elements then adds variations of this color to edges of your graphic. If your web background consists of multiple colors pick a representative color from your background and use that. Creating this pseudo multi-bit mask adds some file size to your GIF but not much. Because I knew my graphic would be placed on a page with a gold background I chose Other from the Matte pop-up menu and then in the Color Picker I chose FFCC33 the hexadecimal value for my color. The selected color was displayed in the Matte box. If you set the Matte to None no pseudo multi-bit mask is created. Use None if an aliased look is what you want. A zoomed-in shot of the edges shown in Figure illustrates how Photoshop Elements adds variations of the Matte color to the edges of the graphic. Now when the graphic is placed against the browser background a nice anti-aliasing effect makes the graphic look much better. Figure When you choose a Matte color a pseudo multi-bit mask is created left which diminishes the jagged look. Now the graphic floats nicely on the page right . Portf TITLE PorQobo- TITLE- META HTTP EGVrV- Contme-Typ CONTEWT-trxt html. hatTOeo-SSS format GIF Cknwreon 234wxl29i Stt 2077K Settings Srlretive. 32Color 100 Cưtuson Dithn. Transpiren. on. Non-Interlaced. 0 Web Snap You can also use the Save As or Image Mode Indexed Colors method to designate transparent areas. While in the RGB .
