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ArduCAM / ArduCAM_USB_Camera_Shield

This is the repository for ArduCAM USB Camera Shield
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USB3.0 UC-425 Rev.C with IMX477 (High quality camera) not displaying images correctly or too dim. #142

Open alsarmie opened 4 years ago

alsarmie commented 4 years ago

Hello, I recently got the new high-quality camera IMX477 with the USB3 shield. I was expecting to be able to use it straight away as advertised here (sensor and USB shield): https://www.youtube.com/watch?v=8A3walono1k&ab_channel=Arducam at (0:30-0:37) First I tried on Windows for a sanity check. I am able to load the configuraiton files for the IMX477 sensor, but the image is not being displayed or it is super noisy.

demo

On Linux (on which I am more interested in getting this to work), I am able to run the python ArduCAM demo with the config files, but I am getting very dim and greenish images. I can not seem to find a way to modify this on the documentation. Your support is appreciated. The IMX477 cfg files are the ones from the latest repo update.

alsarmie commented 4 years ago

This is the image I get in Linux: output After a while (5 mins of video streaming), the demo just freezes with this constant output: ('Error capture image, rtn_val = ', 65318) ('Error capture image, rtn_val = ', 65318) ('Error capture image, rtn_val = ', 65318) ('Error capture image, rtn_val = ', 65318) ('Error capture image, rtn_val = ', 65318) ('Error capture image, rtn_val = ', 65318)

keesjan123 commented 3 years ago

I'm having similar issues with the IMX477 and the USB3 shield. The images in the Linux version are underexposed and have whitebalance problems (image looks green-ish). Also, I have no idea how to change any parameters such as exposure, gain, et cetera.

I figured that perhaps I can change the .cfg file myself and tried looking for the IMX477 datasheet, but I could not find a document detailing the register mappings so far.

This makes me wonder: where does ArduCam get their register mapping documentation from? Any help is greatly appreciated.

alsarmie commented 3 years ago

You can modify gain and exposure by modifying camera registers, gain: MX477_ANALOG_GAIN_ADDR_MSB 0x0204 IMX477_ANALOG_GAIN_ADDR_LSB 0x0205 min=0 max=978 exposure: IMX477_COARSE_INTEG_TIME_ADDR_MSB 0x0202 IMX477_COARSE_INTEG_TIME_ADDR_LSB 0x0203

That is the answer I got from their support. However for the rest of the parameters, only they know how to configure them. The other errors I saw were due to USB bandwidth from the PC. However, I would advise to be careful with the USB3 shield, the connector is pretty weak and tends to break easily with normal usage :/.