例程讲解-03-text_drawing绘制文字

本例程为03-Drawing-text_drawing.py

# 绘制文字
#
# 这个例子展示了如何使用OpenMV内置的写字功能。
import sensor, image, time, pyb

sensor.reset()
sensor.set_pixformat(sensor.RGB565) # or GRAYSCALE...
sensor.set_framesize(sensor.QVGA) # or QQVGA...
sensor.skip_frames(time = 2000)
clock = time.clock()

while(True):
    clock.tick()

    img = sensor.snapshot()

    for i in range(10):
        x = (pyb.rng() % (2*img.width())) - (img.width()//2)
        y = (pyb.rng() % (2*img.height())) - (img.height()//2)
        r = (pyb.rng() % 127) + 128
        g = (pyb.rng() % 127) + 128
        b = (pyb.rng() % 127) + 128

        # If the first argument is a scaler then this method expects
        # to see x, y, and text. Otherwise, it expects a (x,y,text) tuple.
        img.draw_string(x, y, "Hello World!", color = (r, g, b), scale = 2, mono_space = False)

    print(clock.fps())

运行效果图:

星瞳科技OpenMV官方中文文档函数讲解：