Member attributes: Dithering

This attribute controls the color conversion of a bitmap resource member.

Syntax

None

Auto

ErrorDiffusion

OrderedDithering

Discussion

The attribute Dithering determines an optional optimization operation to apply during the conversion of the bitmap resource. In target systems supporting limited color space (e.g. RGBA4444) dithering can improve the appearance of the bitmap. It can also improve the quality of a bitmap configured with the RGB565 or Index8 format. Abstractly speaking, with an active dithering Embedded Wizard adds additional noise to the resulting bitmap and prevents so large-scale patterns and quantization errors. The following table provides an overview of the supported dithering modes:

Format

Description

None

Dithering is disabled for the affected bitmap resource.

ErrorDiffusion

Performs the error diffusion dithering algorithm.

OrderedDithering

Performs the ordered dithering algorithm.

Auto

Selects automatically the appropriate dithering mode (ErrorDiffusion, OrderedDithering or even None) depending on the format of the bitmap resource and the capabilities of the target system.

Modify the attribute

To inspect or modify the value of a Dithering attribute, select first the affected bitmap resource member. Thereupon, the attribute is listed in the middle area of Inspector. Please note the available assistant you can activate by clicking on the button right to the attribute:

Localization

The attribute Dithering can be localized allowing the creation of bitmap resource members with language dependent dithering modes. For this purpose expand the attribute by clicking on the small triangle left to the attribute. All available language specific values are listed thereupon below the attribute and can be modified individually:

If you haven't specified any dithering mode for a particular language specific value, the mode from the fallback language Default is used automatically. Once localized values can be removed easily by pressing the keys CtrlR when the affected value is selected.