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30 lines
1.6 KiB
Python
30 lines
1.6 KiB
Python
# High FPS Example
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#
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# This example shows off how to make the frame rate of the global shutter camera extremely
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# high. To do so you need to set the resolution to a low value such that pixel binning is
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# activated on the camera and then reduce the maximum exposure time.
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#
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# When the resolution is 320x240 or less the camera reads out pixels 2x faster. When the
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# resolution is 160x120 or less the camera reads out pixels 4x faster. This happens due
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# to pixel binning which is automatically activated for you to increase the readout speed.
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#
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# While the readout speed may increase the camera must still expose the image for the request
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# time so you will not get the maximum readout speed unless you reduce the exposure time too.
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# This results in a dark image however so YOU NEED A LOT of lighting for high FPS.
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import sensor, image, time
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sensor.reset() # Reset and initialize the sensor.
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sensor.set_pixformat(sensor.GRAYSCALE) # Set pixel format to GRAYSCALE
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sensor.set_framesize(sensor.QQVGA) # Set frame size to QQVGA (160x120) - make smaller to go faster
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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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sensor.set_auto_exposure(True, exposure_us=5000) # make smaller to go faster
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while(True):
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clock.tick() # Update the FPS clock.
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img = sensor.snapshot() # Take a picture and return the image.
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print(clock.fps()) # Note: OpenMV Cam runs about half as fast when connected
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# to the IDE. The FPS should increase once disconnected.
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