Questions tagged [bayer]

denotes Bayer color mosaic filter

Filter by
Sorted by
Tagged with
7
votes
4answers
545 views

Can we improve phone cameras using separate sensors for each of RGB?

So I was reading all about the multi camera system on the new Huawei P20 Pro which really got me thinking about how we can use multiple cameras to improve image quality, especially in such a compact ...
7
votes
1answer
161 views

At which point do cameras scale photos down when using quarter sensor resolution?

My Nikon D5600 sensor can deliver 24MP but I configured it to just use 6MP. At which step in the process does the camera "scales" the images down? Maybe already at sensor level? By calculating an '...
2
votes
1answer
331 views

What demosaic algorithm is best for DNG to B&W conversion?

I figure that at some point someone has devised a demosaic algorithm that is optimal for converting a Bayer DNG to a B&W photograph. But what is that algorithm called, and what image processing ...
15
votes
3answers
4k views

RAW files store 3 colors per pixel, or only one?

Ken Rockwell says that camera makers consider the individual R/G/B sensors when they talk about megapixels. So the image below would be a 6x6 pixel camera, not 3x3 as you would imagine. If that's ...
0
votes
2answers
769 views

How can I simulate a bayer filter (or just RGB channels) using photoshop layers?

I can copy the red, green, and blue channels in an image and make them layers. What I'm after is to have a document with 3 layers... one representing the red channel, one for green, another for blue....
2
votes
2answers
1k views

What are the peak wavelengths passing through a bayer filter?

The bayer filter allows for the passage of RGB light which is then recorded via photodiodes. However, since a bayer filter is more or less a juxtaposition(cetainly not literally a juxtaposition) of ...
0
votes
1answer
48 views

is it possible to retrace back to the values of intensities that have been captured by the digital camera from the image's RGB values?

One can use matlab to know the RGB values's data for all the pixels. But the camera captures the data by measuring intensities at each photodiode. These values are such that they correspond to one out ...
-1
votes
1answer
258 views

The CCTV cameras that show black and white images, do they have bayer filters attached on their CCD/CMOS image sensors?

I need a black and white camera. Since the cameras in the market, the ones available for astro-photography are quite costly, I am thinking of converting a digital camera to black and white. I see that ...
7
votes
1answer
1k views

Why is the IR filter present when there is already the Bayer filter on an image sensor?

I have been trying to remove the Bayer filter from the CCD image sensor of my camera. Now I see there's an IR filter before the lens, however I don't understand the point of it because isn't the Bayer ...
2
votes
2answers
375 views

Pixels and Subpixels usage in TIFF and RAW

The first answer to this question says that when saving images in TIFF, each pixel holds three colors' data and because of that, the file is larger... and RAW only hold monochrome data in each ...
9
votes
1answer
1k views

How is a Bayer filter manufactured?

Following on from an earlier question about bayer filters, it got me wondering: How are they actually manufactured? How do they apply such a small amount of dye to each sub pixel? My best guess ...
6
votes
3answers
1k views

Why is a Bayer filter with three colors(RGB) preferred over one with two colors and unfiltered (RBNeutral)?

The Bayer filter consists of red, green and blue filters placed before a sensor array to enable deduction of the color of light incident on the sensor. A downside of this method is that roughly 2/3 ...
6
votes
1answer
1k views

When RAW files are converted to DNG, are any irreversible demosaicing happening or not?

I know this almost touches some other questions already asked here, but it's actually aligned a bit different. This is not about DNG vs RAW, rather just about the demosaicing step in the conversion. ...
10
votes
2answers
504 views

Does this RGB-patterned reflector have benefits for digital photography?

B2Pro has announced a parabolic umbrella reflector for photographic lighting. The surface of the umbrella is printed with a hexagonal array of red, green, and blue spots: The manufacturer makes the ...
6
votes
1answer
621 views

How does the new layout used in Fujifilm X-Pro1 sensor improve image quality?

One of the allegedly big advantages of Fujifilm X-Pro1 is its new color filter array layout, which does not require anti-aliasing filter in front of it. In theory, this could mean notable improvement ...
2
votes
1answer
344 views

How do digital sensors that capture one color at each photosite compare to sensors that capture many colors?

There are different type of digital camera sensors, those sensors that can capture only one color at each photosite and those who can capture more than one color at each photosite. Which one is ...