with get_pixel i get the same three RGB mean values ?

[chrisPyres66]

Dear all,

Here is my code where i try to get the three RGB mean values of a roi.
Unfortunately, i have alway the same three RGB mean values opposite to the RGB mean values written on the RGB color space charts under the image in openmv ide.

Code: Select all

import sensor, image, time

sensor.reset()
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.VGA)
sensor.skip_frames(time=2000)

StartX=0
StartY=0
LengthX=640
HeightY=480

img=sensor.snapshot()

meanR=0
meanG=0
meanB=0

for i in range(StartX,StartX+LengthX):
   for j in range(StartY,StartY+HeightY):
      rgbtup=img.get_pixel(i,j,rgbtuple=True)
      meanR=meanR+rgbtup[0]
      meanG=meanG+rgbtup[1]
      meanB=meanB+rgbtup[2]
      
meanR=meanR/(LengthX*HeightY)
meanG=meanG/(LengthX*HeightY)
meanB=meanB/(LengthX*HeightY)

I miss something i suppose..
Thanks for help,

PS: i did not success to include print instruction in code ?

[kwagyeman]

Please use the get_stats() method. https://docs.openmv.io/library/omv.imag ... statistics

[chrisPyres66]

Thanks, i do this but does that mean get_pixel is depreciated ?

[iabdalkader]

Thanks, i do this but does that mean get_pixel is depreciated ?

get_stats will be much faster since it's implemented in C.