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35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
# Image Reader Example
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#
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# NOTE: This example requires an SD card.
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#
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# This example shows how to use the Image Reader object to replay snapshots of what your
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# OpenMV Cam saw saved by the Image Writer object for testing machine vision algorithms.
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#
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# Altered to allow full speed reading from SD card for extraction of sequences to the network etc.
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# Set the new pause parameter to false
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import sensor
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import image
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import time
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snapshot_source = False # Set to true once finished to pull data from sensor.
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sensor.reset() # Reset and initialize the sensor.
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sensor.set_pixformat(sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE)
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sensor.set_framesize(sensor.QQVGA) # Set frame size to QQVGA (160x120)
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sensor.skip_frames(time=2000) # Wait for settings take effect.
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clock = time.clock() # Create a clock object to track the FPS.
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stream = None
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if snapshot_source is False:
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stream = image.ImageIO("/stream.bin", "r")
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while True:
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clock.tick()
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if snapshot_source:
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img = sensor.snapshot()
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else:
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img = stream.read(copy_to_fb=True, loop=True, pause=True)
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# Do machine vision algorithms on the image here.
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print(clock.fps())
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