Rupiert
Posts: 13
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Wrong Image Color

Thu Jun 20, 2019 5:07 am

Hey there!

I have some Rpi's with this cam: https://www.amazon.de/Electreeks-Raspbe ... r=8-5&th=1

They all make wrong color on pictures like that:

Image

Image

my raspistill cmd look like this:

Code: Select all

raspistill -o $FILENAME -q 10 -a 12 -a 1024 -a "Zeropi#1 %Y-%m-%d %X" -awb auto
What is wrong and how can i fix it.

[Mod: edited out bad language. Don't do it again]

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rpdom
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Re: Wrong Image Color

Thu Jun 20, 2019 7:08 am

That doesn't look like an official Raspberry Pi camera module, it is possibly one of the clones of the original version. As it has the dodgy big IR LEDS on either side, it is probably a NoIR or night vision version with no infrared filter over the lens. That can make colours distorted in natural light.

Also, please watch your language. This is a family friendly forum and that sort of language is not acceptable here.

jamesh
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Re: Wrong Image Color

Thu Jun 20, 2019 8:48 am

Indeed, looks like a NOIR camera, which will give strange colour effects in daylight conditions.
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gordon77
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Re: Wrong Image Color

Thu Jun 20, 2019 9:09 am

jamesh wrote:
Thu Jun 20, 2019 8:48 am
Indeed, looks like a NOIR camera, which will give strange colour effects in daylight conditions.
In English it says... NIGHT VISION - High performance infrared LEDs guarantee optimal night vision. Since the Raspi NOIR camera module does not have an IR filter, the infrared radiation that is invisible to the human eye can be recorded.

So it certainly looks like a noir camera.

Rupiert
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Re: Wrong Image Color

Thu Jun 20, 2019 11:43 am

One of my Rpi's make right pictures. So i do not understand what is the difference. The only one capture green like in a real picture, the other's don't!

gordon77
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Re: Wrong Image Color

Thu Jun 20, 2019 11:47 am

Rupiert wrote:
Thu Jun 20, 2019 11:43 am
One of my Rpi's make right pictures. So i do not understand what is the difference. The only one capture green like in a real picture, the other's don't!

Earlier you said


"They all make wrong color on pictures like that" , so what changed?

Rupiert
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Re: Wrong Image Color

Thu Jun 20, 2019 12:29 pm

I bought the one, one month bevor.

gordon77
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Re: Wrong Image Color

Thu Jun 20, 2019 12:37 pm

Rupiert wrote:
Thu Jun 20, 2019 12:29 pm
I bought the one, one month bevor.
If you mean the camera could it be a normal one, not noir?

Rupiert
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Re: Wrong Image Color

Fri Jun 21, 2019 6:31 am

So: I have 6 Rpi's (half zero pi's) there all have the same cam. One Rpi makes normal pictures. I bought the cam 1-month bevor for testing. I don't know why.

gordon77
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Re: Wrong Image Color

Fri Jun 21, 2019 6:44 am

If you swap the 'normal' camera with a 'bad' one does the problem move?

I suggest one camera is a normal one or noir

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RaTTuS
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Re: Wrong Image Color

Fri Jun 21, 2019 7:56 am

"NIGHT VISION - High performance infrared LEDs guarantee optimal night vision. Since the Raspi NOIR "...
or
"NIGHT-VISION - Hochleistungs-Infrarot-LED's garantieren optimale Nachtsicht-Aufnahmen. Da das Raspi NOIR Kamera-Modul keinen IR-Filter besitzt, kann die für das menschliche Auge nicht sichbare Infrarotstrahlung aufgenommen werden."
this is a NOIR camera
it has no IR filter so daylight colours are washed out .... though it's better with IR illumination for night viewing - those modules do not provide much in the way of illumination - OK for close up stuff
if you want good night illumination then I suggest getting a couple of https://www.aliexpress.com/item/32296264695.html or similar [not saying these are any good]
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Burngate
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Re: Wrong Image Color

Fri Jun 21, 2019 9:43 am

Rupiert wrote:
Fri Jun 21, 2019 6:31 am
So: I have 6 Rpi's (half zero pi's) there all have the same cam.
Do you mean you have only one camera that you swap between the six Pis, or do you have six supposedly identical cameras, one for each Pi?

gordon77
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Re: Wrong Image Color

Fri Jun 21, 2019 12:57 pm

Burngate wrote:
Fri Jun 21, 2019 9:43 am
Rupiert wrote:
Fri Jun 21, 2019 6:31 am
So: I have 6 Rpi's (half zero pi's) there all have the same cam.
Do you mean you have only one camera that you swap between the six Pis, or do you have six supposedly identical cameras, one for each Pi?
I admit l am a bit confused whether 1 or 6 cameras, and don't know how the output can vary between Pi's with the same camera if running the same code.

Rupiert
Posts: 13
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Re: Wrong Image Color

Sat Jun 22, 2019 4:41 am

6 camera (no matter by hardware)
6 rpm (3 rpm, 3 rpm zero)

I thought so well that it comes from noir. But it was confusing because you also take normal pictures.

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