Corel Painter 2015 Guide de l'utilisateur télécharger pdf (Page 910)

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• Quantize to Nearest Color — causes Corel Painter to look at each pixel and pick the nearest color.

This is useful when the image you are saving has broad areas of a single color.

• Dither Colors — causes Corel Painter to apply a stippled effect to the chosen colors to generate a

more accurate, less banded result. Dither Colors can reduce the effectiveness of GIF file compression.

The RIFF format contains image data that is lost when saving to GIF or JPEG. To edit the file later,

save a RIFF copy before saving to the GIF or JPEG file format.

Reducing the number of colors in GIF files

Web designers are always seeking a careful balance when creating graphics for the web. Artwork and

images must be as rich and vibrant as possible while remaining small and easily downloadable.

One way of keeping the file size small is to reduce the number of colors used to create the image. Reducing

the number of colors reduces file size and, therefore, download time.

A web artist may end up saving multiple versions of the same graphic element, varying the number of

colors used. These versions must then be placed on a web page to determine if the quantity of colors used

is acceptable. This whole process can be time-consuming.

In Corel Painter, you can make this decision during the process of saving the image to GIF format, by using

the Preview window on the Save As GIF Options dialog box.

To reduce the number of colors in a GIF

Choose File Save As and name your image file.

2 Choose the GIF file format, and click Save.

Click OK to dismiss the layer warning, if displayed.

3 In the Save As GIF Options dialog box, in the Number of Colors area, enable the 256 Colors option.

In the preview window, the image appears in 256 colors.

4 Enable the 128 Colors option.

In the preview window, the image appears in 128 colors.

5 Continue reducing the number of colors in the image until you find the minimum number of colors

necessary for adequate display on your web page.

6 Choose one of the following imaging methods:

• Quantize to Nearest Color — causes Corel Painter to look at each pixel and pick the nearest color.

This is useful when the image you are saving has broad areas of a single color.

• Dither Colors — causes Corel Painter to apply a stippled effect to the chosen colors to generate a

more accurate, less banded result.

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Commentaires sur ces manuels

Chriscof 29 Apr 2024 | 04:09:55

Hello, im noob :)

Corel Painter 2015 Guide de l'utilisateur Page 910

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