BGColor in Screendump is not uniform

[afruff23]

Hi, when I take a screendump of my gigabeat in either simulator or the actual player itself, the wps backdrop is not accurately rendered. Although the backdrop is mostly a single uniform color, the uniform areas are displayed as several colors for some reason. To see an example, download the attached file. Use an eyedropper tool to see that a large part of it is a single color. Set it as a backdrop. Take a screendump. Use an eyedropper tool to see that a large art of it alternates between a few colors rather than being a single color.

Is this inaccurate rendering done to every BMP file on a WPS?

[Llorean]

The WPS is rendered in 16-bit color. If you use a 24-bit BMP file, it will be dithered, of course. This is probably what you're referring to.

[afruff23]

How do I export to 16-bit color? Fireworks only allows 8 and 24-bit BMPs.

[Llorean]

That's really something to ask whoever provides your image software...

[afruff23]

Well, can you recommend me one? I do not know of any software which exports to 16-bit BMP.

EDIT: Or can you recommend me a batch converter which does not use dithering to go from 32 to 16 bit?

[crash91]

Try IrfanView, it does batch conversion and has loads of options for dithering, bits and all that jazz.

[Llorean]

Dithering is somewhat essential. Because there are far less colors in 16-bit colorspace than 24 or 32 bit colorspace, you create a mix of "nearby" colors in a way to attempt to trick the eye into seeing the original color. You WANT dithering in many cases. If you don't want a color dithered, pick a color that has an exact match in 16-bit colorspace.

[afruff23]

16-bit does not have an adaptive palette, correct?

Try IrfanView, it does batch conversion and has loads of options for dithering, bits and all that jazz.

I have the newest Irfanview. It doesn't support converting to 16-bit BMP files in the GUI (maybe the CLI does though?).

[Llorean]

Please use the modify button. You've been around long enough to know the guidelines here.

16-bit color isn't palette based.

[afruff23]

Does anyone know of a tool similar to a color selector in image-editing software but it only has the 16-bit colors?