For me to be bothered to use something like this outside of the editor it would need to perform many different mappings on different areas of the same image. eg. If I want to do 8 colour variations of a sprite, I duplicate the sprite 8 times in the source file, open it in your tool, select the first copy, fiddle with the colours, select the next copy, fiddle with the colours and so on.
Being able to create new colours is important, rather than being limited to a pre-existing palette.
A nice feature for larger gradient-based palettes would be support for gradient-to-gradient mappings. So mark a sequence on the source palette and a sequence of the destination palette then intepolated the one to the other. Be much easier than individually marking each colour on a large palette and allow adapting between different gradient sizes.
AFAIK the Pixel Joint forums are the original home of DB's palettes.
I don't know of any dedicated tool, but something like you describe would certainly be neat as editor built-in functionality.
My somewhat convoluted process using GraphicsGale (full version now freeware, by the way) for indexed images is to copy the section I want to recolour, paste as a new image, perform necessary palette manipulations on new image, copy and paste back into original image. If I've created new colours that I don't want fit back into the original palette I first convert the original image to truecolour, then back to indexed after pasting.
Most artists are familiar with "competitions" as a scamy way for unscrupulous types to try to get art for little or no cost ("If you enter your art we'll use it in our game!"). Doing such will likely have the opposite of the desired effect.
If you are really looking for talent, find artists with promising portfolio's and offer them paid art tests.
Just so people don't get conned, at least some (I suspect all) of the images in their gallery are simply bodged together traces of mismatched parts from copyrighted works.
Looks good.
For me to be bothered to use something like this outside of the editor it would need to perform many different mappings on different areas of the same image. eg. If I want to do 8 colour variations of a sprite, I duplicate the sprite 8 times in the source file, open it in your tool, select the first copy, fiddle with the colours, select the next copy, fiddle with the colours and so on.
Being able to create new colours is important, rather than being limited to a pre-existing palette.
A nice feature for larger gradient-based palettes would be support for gradient-to-gradient mappings. So mark a sequence on the source palette and a sequence of the destination palette then intepolated the one to the other. Be much easier than individually marking each colour on a large palette and allow adapting between different gradient sizes.
AFAIK the Pixel Joint forums are the original home of DB's palettes.
I don't know of any dedicated tool, but something like you describe would certainly be neat as editor built-in functionality.
My somewhat convoluted process using GraphicsGale (full version now freeware, by the way) for indexed images is to copy the section I want to recolour, paste as a new image, perform necessary palette manipulations on new image, copy and paste back into original image. If I've created new colours that I don't want fit back into the original palette I first convert the original image to truecolour, then back to indexed after pasting.
I reckon it should cover everything, to prevent deceptive previews if for no other reason.
Most artists are familiar with "competitions" as a scamy way for unscrupulous types to try to get art for little or no cost ("If you enter your art we'll use it in our game!"). Doing such will likely have the opposite of the desired effect.
If you are really looking for talent, find artists with promising portfolio's and offer them paid art tests.
Just so people don't get conned, at least some (I suspect all) of the images in their gallery are simply bodged together traces of mismatched parts from copyrighted works.
eg.
The whole point of GPL is that it ensures that one cannot take the right to modify away from the user.
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