Support MJPG #178
Support MJPG #178
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The default record format of Azure Kinect is MJPG, and the provided transformation format is BGRA. The convert function is provided here.
pyk4a/capture.py
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| color_BGR = cv2.imdecode(self._color, cv2.IMREAD_COLOR) | ||
| b, g, r = cv2.split(color_BGR) | ||
| h, w = b.shape | ||
| a = np.ones((h, w), dtype=np.uint8)*255 | ||
| color_BGRA = cv2.merge([b, g, r, a]) |
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you can use something like
cv2.cvtColor(color_BGR, cv2.COLOR_BGR2BGRA)
pyk4a/capture.py
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| "color color_image must be of color_format K4A_IMAGE_FORMAT_COLOR_BGRA32 for " | ||
| "transformation_color_image_to_depth_camera" | ||
| ) | ||
| if self._color_format == 0: |
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better if you use constants insteads numbers i.e. ImageFormat.COLOR_MJPG
pyk4a/capture.py
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| "color color_image must be of color_format K4A_IMAGE_FORMAT_COLOR_BGRA32 for " | ||
| "transformation_color_image_to_depth_camera" | ||
| ) | ||
| else: |
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i think you missed other color formats, i.e. ImageFormat.COLOR_NV12
| color_BGRA = cv2.cvtColor(self._color, cv2.COLOR_YUV2BGRA_YUY2) | ||
| elif self._color_format == ImageFormat.COLOR_BGRA32: | ||
| color_BGRA = self.color | ||
| else: | ||
| raise RuntimeError( | ||
| "color color_image must be of color_format K4A_IMAGE_FORMAT_COLOR_BGRA32 for " |
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Let's change the message here.
delete error message
|
Damm this requires adding opencv as a dependency! |
IDK. The problem is that the default record format is MJPG and it is necessary to use BGRA for processing. Thanks to Microsoft:( |
You can open camera with BGRA color_format, in this case mkv will store uncompressed bgra(or rgb, I forgot details). But file will be VERY HUGE. |
Not only huge, also impossible to capture at 30FPS on my laptop... |
The default record format of Azure Kinect is MJPG, and the provided transformation format is BGRA. The convert function is provided here.