[PD] pix_dump and average?

[Tina Shah]

Hi List, I'm trying to get the average color data from an image.  I'm using 
pix_dump and then trying to use 'average' to get the average of the dump, 
but the numbers are not matching.  i tested just a 1 pixel image, got 4 
values - 0.341176 0.360784 0.345098 1 - but the average is wrong - average: 
0.35098.  anybody know what i'm doing wrong or know of an easier way?  I'm 
on windows (pd .39-2) and just using gem...  BTW, does pix_resize work?
thanks!
here's the patch:

#N canvas 514 -19 949 762 10;
#X obj 143 110 gemhead;
#X obj 25 259 gemwin;
#X msg 25 110 create;
#X msg 53 142 1;
#X msg 53 172 0;
#X msg 25 208 destroy;
#X obj 143 203 pix_dump;
#X msg 154 167 bang;
#X obj 143 387 pix_texture;
#X msg 149 366 quality 0;
#X obj 143 409 square 2;
#X obj 149 343 loadbang;
#X text 197 167 trigger the pix_dump;
#X obj 194 254 print dump;
#X msg 398 174 bang;
#X msg 559 180 clear;
#X floatatom 299 195 0 0 0 0 - - -;
#X obj 143 135 pix_image dumptest3.jpg;
#X obj 338 280 print average;
#X text 31 40 dump the pixles of the image & get an average;
#X obj 338 232 average 4;
#X connect 0 0 17 0;
#X connect 2 0 1 0;
#X connect 3 0 1 0;
#X connect 4 0 1 0;
#X connect 5 0 1 0;
#X connect 6 0 8 0;
#X connect 6 1 13 0;
#X connect 6 1 16 0;
#X connect 7 0 6 0;
#X connect 8 0 10 0;
#X connect 9 0 8 0;
#X connect 11 0 9 0;
#X connect 14 0 20 0;
#X connect 15 0 20 0;
#X connect 16 0 20 0;
#X connect 17 0 6 0;
#X connect 20 0 18 0;