Serene Life

by garik

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9
votes
5answers
1k views

What's the difference between colour space and bit depth?

I know that there are different types of colour space and that sRGB is the most common. Bit depth defines the variations of a colour channel, where (I think) 8 and/or 16 bits are the most common. ...
1
vote
1answer
50 views

What happens to image after opening from ACR to PS?

My RAW images have 12 or 14 bits depth (depending on camera settings). After I open them in Adobe Camera Raw, adjust exposure and other things, and then send to Photoshop, is the image reduced to ...
9
votes
2answers
345 views

Viewers that output to 30-bit monitors?

I'm having trouble finding applications that output to 30-bit monitors. Part of the problem is inconsistent terminology, as some say 30-bit color, or 10-bit color (as in 10-bits per component) or deep ...
0
votes
1answer
87 views

Can I use ProPhoto in 14 bits?

I've always shot in RAW 12 bits (max on my old camera). With my D7000 I can capture RAW files in 14 bits. Is this enough to go with the ProPhoto RGB gamut, or is 14 bits too little to represent all ...
-3
votes
3answers
85 views

Displaying an 8bpp image on 30bpp hardware, what to do with the extra bits? [closed]

I am building some hardware with a graphical user interface and my images are stored with 8 bits per pixel (bpp) in RRRGGGBB format. However, my video chip expects 30bpp pixels (10 bits for each ...
2
votes
5answers
365 views

Is it possible to increase digital color depth via interpolation?

I have a set of photos that where scanned at 8 bit color depth. Is it possible to increase the color depth digitally? I realize just increasing the color depth would gain me nothing unless it also ...
2
votes
2answers
365 views

Is it possible to make a 1-bit (bitonal) JPEG?

I think the answer is no, so I guess what I'm really looking for is an explanation. It seems as though with every library and tool I've tried for converting images, even when all of the pixels are ...
1
vote
2answers
229 views

Is conversion to 16 bit needed for good PP results when working on JPEG images?

When working on JPEG files, should I start by converting the images to 16 bit depth? Supposedly that would make for more room for the adjustments I'm going to make on the photos. Two occasions that ...
2
votes
1answer
93 views

Why does Rawstudio display individual RAW color levels as 8-bit values?

I use rawstudio to deal with raw images that I shoot on my Canon 600D(T3i). I don't understand why the raw image's RGB color only displays values in a 8bit base (0-255) when I put the mouse over the ...
1
vote
1answer
577 views

What's the brightness depth of IPhone 5 camera in bits?

Likely this will be the same as the color depth in bits per channel. For digital cameras it can be 8bit or 12bit and sometimes as high as 14bit. What is it for the IPhone 5?
1
vote
0answers
332 views

Scan using Image Capture at more than 8-bits bit depth

I have an HP Deskjet 3054. I'm scanning using Apple's Image Capture app, and am trying to set the bit-depth to something higher than the default as all of my images come into Photoshop as 8-bit. I'd ...
0
votes
3answers
3k views

Why are my 14-bit RAW files being saved as 8-bit on my computer?

I shoot a Canon 5D Mark ii at the highest quality setting. RAW files on this camera are supposed to be 14 bit, but when I save them on my computer, they are all being converted somehow to 8 bit. I use ...
2
votes
2answers
1k views

Does the Nikon D4 capture 16-bit images?

I keep seeing mentions of the D4's 16-bit imaging pipeline but I'm having a hard time finding any information or specifications on what exactly that means. Does that mean the sensor captures images ...
13
votes
3answers
4k views

Is 14-bit RAW better than 12-bit RAW?

A regular JPEG image has only 8 bits to store information about the tone of each pixel. When storing the image in RAW format (for example, DNG), we can store tone using more bits per pixel, which ...
8
votes
4answers
2k views

How many bits of data are typically actually captured by a digital camera sensor?

In a comment on this question someone suggested that camera sensors typically only output 12-14 bits of data. I was surprised because that would mean that 24 bits of color is only useful for doing ...
17
votes
5answers
21k views

How many colors and shades can the human eye distinguish in a single scene?

How many distinct colors, shades, hues, and tints can the average person distinguish in a single scene? In other words, what's the theoretical bit-depth required to be sure of recording a photograph ...
17
votes
3answers
1k views

How can dynamic-range be larger than sensor bit-depth?

Found something that confused me and so I thought the crowd here can probably answer this one since its camera-related and technical at the same time. How can dynamic-range be larger than sensor ...