User Guide - NetObjects Fusion

Optimizing Images
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a. For GIF or PNG-8 file types, set the color reduction, colors, and dither.
• Set the color reduction first to change the set of colors available in the
color table. Then choose the maximum number of colors to display in
the Colors drop-down list.
• Choose Floyd Steinberg dithering to use a common algorithm to
simulate colors that are not available in the color display system of your
computer.
• Select Transparency to create a transparent GIF. See “Creating a
Transparent GIF” on page 243.
b. For JPG file types, set the Quality and Blur. These fields both affect image
quality. 100% is the highest quality, 0% the lowest quality.
• Set the Quality field first. Each setting corresponds to a range of
percents. Low corresponds to 0-39%, Medium to 40-75%, High to 76-
99%, and Maximum to 100%.
• Use the Percent field to fine-tune the quality setting.
Select Progressive to create 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.