Adobe GOLIVE CS2, Руководство пользователя, Страница: 382 / 724

373 ADOBE GOLIVE CS2
User Guide
Optimization options for JPEG format
A
B
Optimization settings for JPEG
A.
File format menu
B.
Compression Quality menu
Quality
Determines the level of compression. The higher the Quality setting, the more detail the compression
algorithm preserves. However, using a high Quality setting results in a larger file size than using a low Quality setting.
View the optimized image at several quality settings to determine the best balance of quality and file size.
Optimized
Creates an enhanced JPEG with a slightly smaller file size. The Optimized JPEG format is recommended
for maximum file compression; however, some older browsers do not support this feature.
Progressive
Creates an image that displays progressively in a web browser. The image will display as a series of
overlays, enabling viewers to see a low-resolution version of the image before it downloads completely.
The Progressive option requires use of the Optimized JPEG format.
Note:
Progressive JPEGs require more RAM for viewing, and are not supported by some browsers.
Blur Specifies the amount of blur to apply to the image. This option applies an effect identical to that of the Gaussian
Blur filter and allows the file to be compressed more, resulting in a smaller file size. A setting of 0.1 to 0.5 is recom­
mended.
ICC Profile
Preserves the ICC profile of the artwork with the file. ICC profiles are used by some browsers for color
correction. This option is only available if the source file contains an ICC profile.
Matte
Specifies a fill color for pixels that were transparent in the original image. Click the Matte color swatch to
select a color in the color picker, or select an option from the Matte menu: Eyedropper (to use the color in the
eyedropper sample box), White, Black, or Other (to use the Color Picker).
Pixels that were fully transparent in the original image are filled with the selected color; pixels that were partially
transparent in the original image are blended with the selected color.
See also
“To optimize and save web graphics” on page 365
“Comparing web graphics formats” on page 369