How to better use PC camera?

Since we have ruled out possibilities with the driver provided for your camera, I'll suggest another option:

Open Broadcaster Studio in combination with OBS Virtual Cam.

In OBS, you simply add your camera as an input source. You can change almost any aspect of it, either by editing the source directly or by adding filters.

Here's an example of me in front of a green screen, rotated by 20°.

OBS can

• mirror horizontally and vertically
• rotate by 90°, 180° or any custom angle
• resize (zoom). Make sure you resize at least to the total screen size, otherwise there will be black in the output (like in the example above)
• crop (Hold the Alt key and use the points around the camera). Obviously I will do that so that the board disappears and I have only green screen left.

Cropping would also be nice, when I travel and have limited bandwidth for meetings.

IMHO the quality of the stream is determined by the application. Some software has SD, HD and FullHD quality settings. Note that cropping in OBS will not affect the output size. However, some areas may appear pure black, so it has better compression and thus reduced bandwidth. For a new output size, you would create a new profile.

This is how it looks like when cropped. Note the green outline which indicates cropping.

Using filters, you can change

• gamma
• contrast
• brightness
• saturation
• hue shift
• blur
• sharpen

(and much more, typically not needed in video conferencing)

VirtualCam then provides you with a new camera that you use instead of the original camera in order to stream whatever you have configured.

Potential downsides of this approach:

I am not sure how VirtualCam exactly responds to quality change requests. For example, if you have set up a scene at 1080p, I don't know whether VirtualCam will stream in 720p, if requested to do so. It might be necessary to set up a lot of profiles for different resolutions.