Add colorbar test script

This commit is contained in:
iabdalkader 2015-08-04 12:19:01 +02:00
parent 5c0e6b8710
commit 4b55a1f949

41
usr/examples/colorbar.py Normal file
View File

@ -0,0 +1,41 @@
import sensor, time
sensor.reset()
sensor.set_brightness(0)
sensor.set_saturation(0)
sensor.set_gainceiling(8)
sensor.set_contrast(2)
# Set sensor pixel format
sensor.set_framesize(sensor.QVGA)
sensor.set_pixformat(sensor.RGB565)
sensor.set_colorbar(True)
# Skip a few frames to allow the sensor to be stable
for i in range(0, 10):
image = sensor.snapshot()
#color bars thresholds
t = [lambda r, g, b: r < 50 and g < 50 and b < 50, # Black
lambda r, g, b: r < 50 and g < 50 and b > 200, # Blue
lambda r, g, b: r > 200 and g < 50 and b < 50, # Red
lambda r, g, b: r > 200 and g < 50 and b > 200, # Purple
lambda r, g, b: r < 50 and g > 200 and b < 50, # Green
lambda r, g, b: r < 50 and g > 200 and b > 200, # Aqua
lambda r, g, b: r > 200 and g > 200 and b < 50, # Yellow
lambda r, g, b: r > 200 and g > 200 and b > 200] # White
#320x240 image with 8 color bars each one is approx 40 pixels.
#we start from the center of the frame buffer, and average the
#values of 10 sample pixels from the center of each color bar.
for i in range(0, 8):
avg = (0, 0, 0)
idx = 40*i+20 #center of colorbars
for off in range(0, 10): #avg 10 pixels
rgb = image.get_pixel(idx+off, 120)
avg = tuple(map(sum, zip(avg, rgb)))
if not t[i](avg[0]/10, avg[1]/10, avg[2]/10):
raise Exception("COLOR BARS TEST FAILED")
print("\nCOLOR BARS TEST PASSED...")