Noisy picture

[slugger]

Does anyone have an issue with noisy pictures? The camera was on full auto. Obviously the lighting was poor at sunrise. Even the unphotoshoped version is grainy.

 

[AngusHaggis]

is there an upgraded sensor you can retro-fit to a P4 or software addon to reduce higher iso noise?
noise levels at 400 iso in low light are shite.

 

[With The Birds]

is there an upgraded sensor you can retro-fit to a P4 or software addon to reduce higher iso noise?
noise levels at 400 iso in low light are shite.

No.

 

[David_Cambridge]

For those of us that come from film to digital sensor based photography, sensor noise has always been an issue. The path to the best images possible has been:

1. Shoot at the lowest ISO possible.
2. Adjust your exposure so that your highlights are just below clipping (“expose to the right”), and adjust the resultant image to taste in post. This will push the noise, which is mostly in the dark part of the image down more into the black, where it is less noticeable.
3. Use noise reduction on that image.
4. Use stacking to average out the noise.

#1 will make the most difference, followed by the others in more or less the same order.

On substituting sensors it is not like changing film. Sensors are dynamic electronic devices requiring fairly complex real time sensor specific software to extract the photo site specific electronic voltages, and translate that voltage value stream into a RGB image. DJI hard codes this software into the drone. It will not work with any sensor other than the one it is written for.

 

[ribjig]

3. Use noise reduction on that image.

What NR scheme for a single image works best?
What ACR NR scheme for a single image works best?
Not just ISO 400, but up to ISO 12800?

With DNGs, I've been setting (6) ACR NR sliders, in order, to
+40 +20 +20 +20 +20 +20
but am not a processing guru...

 

[bsartist]

For those of us that come from film to digital sensor based photography, sensor noise has always been an issue. The path to the best images possible has been:

1. Shoot at the lowest ISO possible.
2. Adjust your exposure so that your highlights are just below clipping (“expose to the right”), and adjust the resultant image to taste in post. This will push the noise, which is mostly in the dark part of the image down more into the black, where it is less noticeable.
3. Use noise reduction on that image.
4. Use stacking to average out the noise.

#1 will make the most difference, followed by the others in more or less the same order.

On substituting sensors it is not like changing film. Sensors are dynamic electronic devices requiring fairly complex real time sensor specific software to extract the photo site specific electronic voltages, and translate that voltage value stream into a RGB image. DJI hard codes this software into the drone. It will not work with any sensor other than the one it is written for.

Shooting in RAW will probably help too.

 

[David_Cambridge]

Yes, I should have suggested that if you are shooting stills.

Doesn’t work for video, as DJI doesn’t have a raw video capability. For video you will need to use one of the less contrasty settings and expose to the right.

I haven’t found any single setting that always works. Too much depends on the original exposure, the lighting, and how far down in the black range you are trying to get image detail.