Why does get return a negative value?

Grimtin10

Im printing out get(x,y), and it is a negative value. White is -1. What is going on?

TfGuy44

The color type is secretly an int. Try:

color c = get(x,y);
println( red(c) );
println( green(c) );
println( blue(c) );
println( hex(c) );

Grimtin10

oh ok

Grimtin10

So, i'm trying to get an average of chunks of color. How do I get the real color?

TfGuy44

What you are getting with get() is a color. The problem is that prinln() doesn't treat the color you got like a color - it thinks it is an int!

How are you planning to average two or more colors?

koogs

Common questions:

https://forum.processing.org/two/discussion/8086/what-is-a-color-in-processing

jeremydouglass

I'm trying to get an average of chunks of color

Are these like a line, rectangle, or circle of pixels in a photographic or drawn image? Should your "average" be weighted towards the center of the selection area, or all all pixels of equal interest? Can you say more about what a chunk is - 20 pixels, 200?

How are you planning to average two or more colors?

lerpColor() gives linear interpolation between two colors -- so, for example, you could find the outliers and then linearly interpolation them.

• https://processing.org/reference/lerpColor_.html

Note however that outlier components and outliers are a different thing -- and that linear interpellation of color RGB components do not always give visually intuitive values for hue, brightness etc.

Grimtin10

Eh, I fixed it. The problem was with the averaging of the LITERAL color values. I just stored the separate RGB values.