Color rendering options - 256 color systems

 

These options determine how PMView will reduce the number of colors when loading an image.

 

Palette

 

Adaptive This will select the best colors for the image.

System. This will only use colors in the system palette.

8-8-4 levels This will use the vaunted 3-3-2 bits fixed palette, that is, a palette with 8 intensity levels for the Red and Green components and 4 levels for Blue.

6-7-6 levels This will use a 6-7-6 level fixed palette, that is, a palette with 6 intensity levels for the Red and Blue component and 7 levels for Green.

6-6-6 levels This will use a 6-6-6 level fixed palette, that is, a palette with 6 intensity levels for each color component.

 

Dither

 

None The colors will be selected on best match basis. The color error is not compensated.

Ordered Ordered dithering is used to compensate the error. Ordered dithering can only be used with R-G-B level palettes.

Diffusion Floyd-Steinberg error diffusion dithering is used to compensate the color error.

 

Preference  Palette   Dither

Best color quality  System   Diffusion

Fastest loading  8-8-4 level  Ordered

System default  Adaptive    None