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Add ulab example.
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scripts/examples/04-Image-Filters/ulab.py
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17
scripts/examples/04-Image-Filters/ulab.py
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# Ulab is a numpy-like module for micropython, meant to simplify and speed up common
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# mathematical operations on arrays. This basic example shows mean/std on an image.
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#
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# NOTE: ndarrays cause the heap to be fragmented easily. If you run out of memory,
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# there's not much that can be done about it, lowering the resolution might help.
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import sensor, image, time, ulab as np
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sensor.reset() # Reset and initialize the sensor.
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sensor.set_pixformat(sensor.GRAYSCALE) # Set pixel format to RGB565 (or GRAYSCALE)
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sensor.set_framesize(sensor.QQVGA) # Set frame size to QVGA (320x240)
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clock = time.clock() # Create a clock object to track the FPS.
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while (True):
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img = sensor.snapshot() # Take a picture and return the image.
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a = np.array(img, dtype=np.uint8)
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print("mean: %d std:%d"%(np.mean(a), np.std(a)))
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