31 lines
994 B
Python
31 lines
994 B
Python
"""Test data collection from the Raspberry Picamera."""
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import numpy as np
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from PIL import Image
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def test_jpeg_and_array(picamera_client):
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"""Check that a jpeg grabbed from the stream is the same size as other captures.
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Compare it to an array capture and a jpeg capture.
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"""
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# Grab a jpeg from the stream
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blob = picamera_client.grab_jpeg()
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mjpeg_frame = Image.open(blob.open())
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# Verify throws an error if there are issues with the image
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mjpeg_frame.verify()
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assert mjpeg_frame.format == "JPEG"
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# Capture a jpeg
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blob = picamera_client.capture_jpeg(stream_name="main")
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jpeg_capture = Image.open(blob.open())
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jpeg_capture.verify()
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assert jpeg_capture.format == "JPEG"
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# Capture an array
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arrlist = picamera_client.capture_array(stream_name="main")
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array_main = np.array(arrlist)
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# Verify image sizes are the same
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assert mjpeg_frame.size == jpeg_capture.size
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assert array_main.shape[1::-1] == jpeg_capture.size
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