Re: Feature-request: More alpha options

On Mon, 03 Sep 2007 09:28:12 +0200, Ruben Lopez <[email protected]> wrote:
> Hi,
> 
> I would like to ask for a new feature in gwenview (well, actually two),
> allowing for more ways to show the alpha channel.
> 
> Motivation:
> The current way of showing alpha (the checkboard) is very good when you
> want to check how the image integrates with a background. But if you
> want to analyze the color channels in areas with alpha < 1, the
> checkboard changes the original color, tricking the user. Also, if you
> want to analyze the alpha channel, to check if it dithers correctly or
> if there is subtle alpha in some part of the image it is not easy.
> 
> Request:
> Add two new modes in gwenview (assignable to shortcuts), that allow
> seeing only the RGB channels, or only the A channel.
> I attach three images that represent this:
> current.png: Current gwenview representation
> without.png: 'RGB' channels representation
> alpha.png: 'A' channel representation

Hi Ruben,

This sounds like an interesting idea. Unfortunately, I have no time to work
on this for now :-(. Note however that the situation is a bit nicer in 
Gwenview 2.0 if you want to check whether there is some subtle alpha somewhere
because when you scroll the image, the alpha checkboard does not scroll, 
making it easier to see if an area is fully opaque or not.

Aurélien


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