break it down.

how do you load the picture?

how would you get the colour of a pixel at a given position?

how would you get the red component from this value?

how do you lookup the ascii char for that value?

how do you print it?

(btw, i think that HI! should be hi! - lowercase)

break it down.

how do you load the picture?
loadImage("name.jpg");


how would you get the colour of a pixel at a given position?
in my case:
color (x,y)

how would you get the red component from this value?
red (x,y)

how do you lookup the ascii char for that value?
i dont know. :)

how do you print it?
println (?)

(btw, i think that HI! should be hi! - lowercase)
yes, thats right!

color(x, y) -- No, look at the reference. That's get(x, y).
red(x, y) -- No, this doesn't exist. That's red(c).
Look up Ascii char: you can just do:
char c = redValue;
to get the corresponding char.
Warning: you can have 255 values of red, but only a subset (roughly 192 values) are displayable Ascii chars.

now just write that as code!

the red is a bit wrong - get(x, y) returns you a colour, then use red() on you colour to get the red part.

color c = get(x, y);
int r = red(c);

and you don't need to look anything up to convert it to ascii, just make it a char (you'll need to cast it)

char ch = (char)r;

then just print that (print(ch); not println(ch); as that adds a newline).

put two loops around it (to work through the entire 2d picture) and you're pretty much done...

thanks alot, guys! that should do it. i post the code as soon as i wrote it. :)

int r = red(c);

This line gives me the error message: "cannot convert from float to int"

Greetz
Kong

1. int r = int(red(c));