[temperature gradient]

I'm sure it is possible, but unlikely to be created due to the niche that it fills. Creating a legend is a fairly specialized requirement!

This plugin might be of interest, it counts the colors in an image: Color Count.

That's 1. taken care of (kind of - it might be very slow if there are many colors). You might have to undertake 2. manually yourself.

BTW: What is the format of the images you're processing?

thank you for you reply.

i think it can be done perhaps easier (i thought of this last night)

inside the weatherscript i already define te RGB values used for the weathersituation (temperature, rain, windspeed etc...)

so all i need :-)

would be a way to generate a legend based on already know possible RBG-values

example of the lines inside the script of the weatherprogram: http://www.usawx.com/digitatmosexamples.htm

the format (color depth, size, png or jpg) can be set as you wish

would that make some difference ?

[temperature gradient]

Hello,

as a weather enthousiast i'm currently learing the program Digital Atmosphere ( http://http://www.weathergraphics.com/ )

you can create weathermaps like these http://www.meteostat.nl/?page_id=821

the maps are created by Digital Atmosphere (DA) and the colors used in the maps are based on scripting you can do from inside DA

the one and only option missing currently in DA is to create a legend (say the temperature range in colors)

i resolved this to manually ad a layer to the picture with the map-part of the layer transparent and the legend part drawn manually

i use paint.net for this job and it works ok

but since paint.net has a lot of scripting-options as plugins would this be possible:

1) read the RGB valuess used inside a picture

2) draw an legend based on the above values and add the legend below the picture.

regards,

Marcel