Orquid "Phoenix"

Orquid "Phoenix"

by ceinmart

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Color is the human perception of light as having different hue, from reds and oranges, through yellows and greens, to blues and violets. Color is a fundamental aspect of the arts and photography.

learn more… | top users | synonyms (1)

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2answers
53 views

Embedded jpegs in NEF raw files

I open a .NEF image from my Nikon D80 in the Windows Photos app (the modern/"metro" style app). I then zoom in, and it re-renders or something to display higher resolution, but the colours become less ...
2
votes
3answers
34 views

How to calibrate colors from photos for classification purpose (ICC profile)?

For a scientific study, I have to classify pictures of crop canopy in two classes: vegetation / soil. These picture are taken at several places, different times and date. The idea is to use the same ...
17
votes
2answers
759 views

Why do I see this yellow color shift at high ISOs and fast shutter speeds? [duplicate]

I recently purchased a full-frame DSLR with a reported highest ISO of 204,800. I’m intrigued by the possibilities of the high ISO range and how far Lightroom and Aperture (I use each of them) can ...
3
votes
3answers
133 views

What is the difference or relation between a Color Model and a Color Space?

What is the exact relation or difference between a color model and a color space? I find these two terms to be used interchangeably in some literature. Are they simply the same? Thanks!
4
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4answers
934 views

CMYK vs RGB - Can a DSLR take CMYK images?

I seems that all cameras take photos in RGB format and printers take photos in CMYK format. If the photo is not in CMYK, then the printer converts it to that format with some loss of quality. Can the ...
4
votes
3answers
467 views

How can I capture the true colors of my reef aquarium?

I have a canon EOS T4i with stock EF-S 18-135mm f/3.5-5.6 IS STM lens, a Rokinon 35mm f/1.4 Lens, and a Sigma 150-500mm f/5-6.3 DG OS HSM APO lens. I'm trying to photograph the various corals in my ...
1
vote
2answers
146 views

How can I whiten my background, without whitening the subject or modifying subject colours?

If I take portraits against a white background I like to use a colorchecker passport to ensure that my subjects come out at the end of my workflow looking 'true to life'. The problem is that due to ...
1
vote
1answer
174 views

How to properly color calibrate a 27 inch iMac monitor (OS Maverick)?

We have a 27" iMac monitor and want to know how to color calibrate it (and with what recommended product) We are looking for someone who has actually done this.
2
votes
3answers
226 views

How can I get the colors right in this indoor architectural photo?

I am trying to take a photo with precise colors. I am not sure what am I missing so I could get similar colors. Here is the result that I would like to achieve: ) This is the photo that I took: ...
10
votes
1answer
406 views

What special properties does 18% gray color have in photography? [duplicate]

I keep seeing 18% gray color backgrounds being used in different areas of photography. What's special about it, why 18% and not 17 or 19?
0
votes
2answers
51 views

Display Color profiles: changing only yellow

How should I set parameters of color profile to change only yellow color output (right now I've got #FFFF00 displayed as #B4B400). Other colors must be left untouched. So I cannot just move Red and ...
2
votes
3answers
192 views

Do colors in photographs depend on ambient temperature?

My friend, previously a photographer, said that if you are taking photos in cold weather the photo is more blue (as if a slight blue filter has been applied). Inversely, taking photos when it is warm ...
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votes
1answer
121 views

What kind of filters might have been applied to these photos?

Neither of these is mine (obviously, since I'm asking), but I see both effects quite frequently as of late. I'm trying to figure out the nature of them. Can anyone make a guess as to what kind of ...
13
votes
1answer
353 views

Why do pictures of fire come out purple?

When I'm taking pictures of my log fire the flames and embers come out in rich shades of purple rather than red. I've tweaked everything I can on my camera; white balance, metering, ISO, exposure, but ...
0
votes
6answers
126 views

Does the subject's face have too much red tint?

I took the attached picture with an iPhone 4, outside around 5pm, which was close to sunset. Does the subject's face have too much red tint? If yes, how would I fix this?
4
votes
3answers
282 views

How can I improve the dull colors in my product photography?

I try to shoot some pictures of apparel, lingerie, cometics on a white fluffy rag or a white paper board with a Canon EOS Rebel T2i + a Canon - Speedlite 270EX II External Flash on a tripod in day ...
4
votes
4answers
217 views

How does low-light conditions affect color quality?

I recently photographed an event that took place while the sun was setting. The quality of colors seem to deteriorate as it gets darker. The scenes were well-exposed as the ISO changed from ~1200 to ...
2
votes
1answer
396 views

How to Color Grading look like this?

I found a photo from Flickr The tone of photo seem like a japanese natural style (eco friendly). Highlight mostly green and add some Faded. How do I create this color grading in Photoshop. I, ...
7
votes
2answers
236 views

Why don't mainstream sensors use CYM filters instead of RGB?

From what I understand most digital cameras have a sensor where each pixel-sensor has three sub-sensors, each one with an R,G and B filter. RGB is obviously the more fundamental colour model since it ...
0
votes
1answer
140 views

color errors in dark areas - canon 700d/t5i

yesterday I bought an Canon EOS 700D with kit lens 18-55 STM. On my test images I encountered green "clouds" on dark areas. Is there a name for this kind of error and does it originate from the lens ...
5
votes
2answers
474 views

How can I get the colors in my photo to look like a painting by the Dutch masters?

I am trying to make pictures look like paintings. I am interested about reaching a similar color grading. This is an example: link I'm asking an opinion about what kind of techniques should I ...
1
vote
3answers
151 views

How does the spectral sensitivity of different sensors affect the resulting photo?

I am learning about light and color formation but I don't understand how does the sensitivity affects an image. Take for instance the different sensitivities for two "cameras" for each RGB channel ...
2
votes
1answer
45 views

Reducing color balance errors across multiple cameras

I'm an electrical engineer, but I thought I'd ask this in the photography section to get some more insight from experienced photographers. I am designing a system which will stitch images taken by ...
4
votes
2answers
194 views

What does 'freedom of color from white or gray' mean?

The dictionary entry for the word chroma says, "the purity of a color, or its freedom from white or gray." What does that statement mean? What is color made of? What causes color? I was reading this ...
11
votes
7answers
375 views

How to set tint if one is colour blind?

How should someone with red-green deficiency in colour vision set tint in Lightroom or other post-processing tools?? Are there any external tools (other than asking someone) that say whether white ...
3
votes
3answers
506 views

How do I create this soft and bright effect?

This is my favorite look for photos, and I've been trying to achieve this for some recent family vacation photographs. What is the process? Here are some links to some examples: ...
2
votes
5answers
240 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 ...
3
votes
1answer
158 views

What's an easy way to batch assign (not convert) an ICC profile to .JPG and .CR2 Canon RAW files?

All of the files that comes out of my camera (Canon Rebel T3i) are not assigned a colorspace. Instead, all files the format IMG_XXXX.JPG/CR2 are implied sRGB and _MG_XXXX.JPG/CR2 are implied Adobe RGB ...
2
votes
1answer
184 views

multiple pictures give different shades for same scene and lighting

I am photographing an object 4 cm away from the camera using 5MP phone camera. It is being used in macro mode with fixed ISO 100 setting. Automatic White balance is being used along with ...
10
votes
4answers
875 views

Why does the red area in this photo look very un-natural?

I was looking through some photos I took at RAF Cosford a few weeks ago, and noticed this big red area (it's a large door surround on the floor below) In the photoshop RAW preview, it looked almost ...
3
votes
4answers
286 views

How does one do light painting with in focus subject? Maybe a composite?

I understand and have tried some rudimentary light painting, but I'm still not sure how one might achieve something like the photos here: http://www.modelmayhem.com/portfolio/pic/18221422 Is this ...
1
vote
1answer
605 views

Can Canon Rebel T4I take black and white photos with color accents?

Can A Canon Rebel T4I shoot B&W pictures with color accents, as you see in some pictures where only one thing has color?
4
votes
1answer
150 views

Why can my old Epson dye printer produce accurate reds but my professional lab can't?

My professional print lab uses a high-end Fuji Frontier machine with its own profile that the customer downloads. The prints are of exceptional quality, except for the colour gamut, particularly with ...
5
votes
0answers
47 views

How does lens design affect the richness of color reproduction? [duplicate]

Comparing a kit zoom lens to a faster, 20-year-old prime it seems like the old lens produces richer, warmer color. I've noticed the same kind of comparisons elsewhere. What is the lens actually doing? ...
1
vote
2answers
301 views

What does it mean when an RGB histogram and luminance histogram look similar?

What does it mean when both RGB histogram and luminance histogram look similar? Please explain in detali.
-1
votes
1answer
173 views

strong colour photo compositions [closed]

How do you take photographs with strong colour compositions? I have a canon 60D and Im a learner. Do you have any tips / best practices you could share? I would like to take pictures like the ones on ...
7
votes
1answer
285 views

What is Colour Rendering Index (CRI)?

From this answer on white balancing a LED light I understood there's a thing called Colour Rendering Index (CRI). I understand it has something to do with how well lights reproduce the sun's colour ...
2
votes
3answers
220 views

What are techniques for enhancing visibility of photos under natural, outdoor daylight?

I'm trying to find techniques for making photos more visible under daylight (i.e., when daylight reflects off the photo displayed on a screen or print). Does anyone know of any photo editing ...
1
vote
4answers
197 views

Why are these lights all different colours and how can I correct them?

I occasionally take panoramic city photos and I've noticed that certain sections of the cities have a lot of different coloured lights. What causes these different lights? Some of these appear to be ...
2
votes
6answers
413 views

How does the gray level in a target impact the true color after calibration

I'm trying to learn how to take photos that are color accurate. I'm testing on a newly painted wall in my kitchen, and has a biege paint with some green tone. ...
-2
votes
2answers
170 views

Blend colors evenly (dissolve-like) in Photoshop [closed]

Is it possible to blend 2 pictures using similar technique like dissolve but more precisely? I need to mix sources evenly - 1 pixel from the top layer second pixel from bottom layer etc. I work with ...
8
votes
4answers
809 views

Are there written guides or rules of thumb for setting color saturation, clarity, vibrance, etc. in post-processing (or in general)?

This isn't another "how do I get a picture to look like such-and-such-link-inserted-here in LR" question. There's a saturation (no pun intended) of these questions here. Interesting, but not general ...
4
votes
3answers
241 views

How can I avoid a blue sheen on red objects?

I have taken a few images of (Very) red objects recently, under both flash and natural light separately, and seem to be getting a subtle, but annoying blue sheen, which is not apparent to the eye. No ...
2
votes
2answers
888 views

What color calibration device works best with a Dell U2711?

I have a Dell U2711 that I use for color critical work. I am wondering if anyone out there has tested multiple color correction devices and come up with a best use option for photoshop and working in ...
4
votes
2answers
343 views

Why do I have a purple tint on black lines on white backround?

I've taken this picture with a Nikon D3200 using the 50mm 1.8 lens. It contains bulbs hanging from lines stretched across two structures with a building and some sky in the background. At the top of ...
3
votes
1answer
554 views

In photoshop cs5 the color of my image changes when I enter full screen mode, how do I fix it?

I am working in PScs5 on a EIZO color edge monitor. When I open my image photoshop displays all of the colors fine. When I change to full frame viewing, the image color becomes very muted and washed ...
8
votes
3answers
328 views

How did Matt Grum color correct the images in “Why is the Fluorescent filter for a flash green?”?

I saw in another question - "Why is the Fluorescent filter for a flash green?" - that Matt Grum had amazingly color corrected two images and would love to know how. Of course, all are invited to ...
5
votes
3answers
1k views

RAWs looking massively different in Aperture/Mac OS Preview compared to camera preview and (Canon) PictureStyleEditor

Yesterday, I have been shooting photos at a christmas market -- especially a band that played there. Since everything happened in the evening and it was quite dark, I thought using RAW instead of JPEG ...
5
votes
2answers
422 views

How does fading light affect color vision?

It's well known that the cones in retina are unable to distinguish colors in dark, leaving us only the monochrome softer vision provided by rods. And personal experience tells this "switch" to ...
6
votes
6answers
2k views

How does aperture size or shutter speed affect color temperature?

With all other parameters assumed constant, does aperture size or duration of exposure have any effect on the resulting color warmth or vividness? (Even slightly.) While answering please also ...