180°翻转摄像头后，热成像图像没有翻转

[otpm]

如图，热成像区域和实际显示的手部区域是镜像是反的
我想把热成像区域翻转一下

# MLX90621 Overlay Demo
#
# This example shows off how to overlay a heatmap onto your OpenMV Cam's
# live video output from the main camera.

import sensor, image, time, fir

ALT_OVERLAY = False # Set to True to allocate a second ir image.

sensor.reset()
sensor.set_hmirror(True)
sensor.set_vflip(True)
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(time = 2000)

# Initialize the thermal sensor
fir.init(type=fir.FIR_MLX90621)

# Allocate another frame buffer for smoother video.
extra_fb = sensor.alloc_extra_fb(sensor.width(), sensor.height(), sensor.RGB565)

# FPS clock
clock = time.clock()

while (True):
    clock.tick()

    # Capture an image
    img = sensor.snapshot()

    # Capture FIR data
    #   ta: Ambient temperature
    #   ir: Object temperatures (IR array)
    #   to_min: Minimum object temperature
    #   to_max: Maximum object temperature
    ta, ir, to_min, to_max = fir.read_ir()

    if not ALT_OVERLAY:
        # Scale the image and belnd it with the framebuffer
        fir.draw_ir(img, ir)
    else:
        # Create a secondary image and then blend into the frame buffer.
        extra_fb.clear()
        fir.draw_ir(extra_fb, ir, alpha=256)
        img.blend(extra_fb, alpha=128)

    # Draw ambient, min and max temperatures.
    #img.draw_string(8, 0, "Ta: %0.2f C" % ta, color = (255, 0, 0), mono_space = False)
    #img.draw_string(8, 8, "To min: %0.2f C" % to_min, color = (255, 0, 0), mono_space = False)
    #img.draw_string(8, 16, "To max: %0.2f C"% to_max, color = (255, 0, 0), mono_space = False)

    # Force high quality streaming...
    img.compress(quality=90)

    # Print FPS.
    print(clock.fps())

[kidswong999]

我想应该没有这个功能。