I want to share some informations regarding both grabbers.
First I started with the UTV007, because everybody is recommend it.
After many hours of calibration and switching settings, I was not really happy with the produced colours of the APA102 Leds. I needed to put Saturation in Hypercon down to 0.2-0.3 to get natural looking colors but due to an oversaturated grabbed image this was only a dirty tweak.
Since the UTV007 gives no options to tweak in the V4l2-ctl, I tried the STK1160 grabber.
With standard v4l2 settings, the image saturation and color looks nearly the same compared to the UT007.
UTV007 Screenshot
STK1160 with standard settings
and the STK1160 with tweaked settings. The colours arent over saturated and look exactly like the image on my TV.
These are my tweaked settings in V4l2.
I created also a start-script, because all settings will be gone after reboot.
I read many post´s that the STK1160 grabber will do problems during startup or after reboot. I cannot reproduce these faults. The grabber is working normal and without any issues.
After all this UTV007 calibration trouble, I cannot recommend using it.
Next days I will test the Haupauge grabber which is more than double the price of the STK1160 and should also be supported by V4l2.
